Tuesday, April 30, 2019

World war II tank armor

Introduction

This article will give a brief overview of the types of armor plate used on tanks during WW2, and examine some of the different ways it could fail when struck by an armor piercing shell. Different types of projectiles can cause the same plate to fail in different ways, so we'll also need to go into detail about that. Then we'll go over the importance of thickness/diameter ratios, how they influence the effect of armor sloping, and how shell normalisation actually works. Finally, we'll look at manufacturing defects that can compromise the quality of an armor plate. The field of armor and ballistics is complicated, but not so much that a basic understanding can't be gleaned.


Types of tank armor

Generally, there are two different types of armor that were used on tanks and AFVs during WW2. The first type of steel armor was heated until the point it was red hot, and was then forged into the required shape. This is rolled homogeneous armor. The second type of steel armor was heated until the point it melted, and was then poured into the required shape. This is cast armor. Both types of armor had to be heat treated and tempered until they gained the desired metallurgical propertys, such as tensile strength, hardness, etc. The alloying elements introduced into the steel -such as manganese, tungsten, nickel, chrome, vanadium- would influence its final form. Rolled homogeneous armor (RHA) had a uniform level of hardness throughout the plate, usually about 250-350 BHN, depending on how thick it is. Face hardened armor (FHA) had two different hardness levels in the plate: The surface was about 450-650 BHN, while the rest was about 250-350 BHN.

FHA is useful against projectiles with a diameter smaller than the plate thickness, I.E., an undermatching shell. It also has the ability to shatter uncapped projectiles and defeat them. However, FHA has the disadvantage that it is more prone to cracking, which gives it lower multi hit protection than RHA. Moreover, FHA plates offers inferior protection to an equivalent RHA plate when hit by capped shells. Another type of tank armor is the so called high-hardness armor. This is similar to FHA, except the hardening extends through the entire depth of the plate, and not just the surface of it. It has a uniformly high level of hardness throughout the plate. For the most part, only the Soviet Union used this type of armor during the war. It had the same strengths and weakness' as FHA did, but taken to the extreme. High hardness armor was only useful against undermatching or uncapped shells. Interestingly enough, cast armor could also be heat treated to achieve the same levels of hardness.


Modes of armor failure

What are some of the different ways that armor plate can fail? The first thing to keep in mind is the difference between penetration vs perforation. When a shell perforates, it passes completely through the armor plate and flys into the vehicle itself. When a shell merely penetrates, however, it does not pass through the plate: It produces a crater and knocks off pieces from the back side of the plate. This effect is known as scabbing or spalling. This is a less serious mode of failure.

In instances when a shell actually perforates the armor, you have to distinguish between ductile and brittle modes of failure. This is absolutely essential. Brittle failures are more dangerous than ductile failures. We'll detail some of the different categorys below. Please note, however, that the type of projectile which strikes an armor plate will strongly influence the manner in which it fails. A shell with an armor piercing cap will usually cause ductile failures in the plate, while uncapped shells will usually cause brittle failures in the plate.

-For ductile failures, there are three different categorys. Plugging, ductile hole growth, and petaling. Ductile hole growth is when the plate (at the impact site) is holed from front to back. Petaling is when the back of the plate folds out. Plugging is when the back of the plate is ejected into the vehicle, along with the projectile.

-For brittle failures, there are two different categorys: Brittle fractures, and brittle plugging. Brittle fractures is when the plate (at the impact site) is shattered from front to back. Brittle plugging is when the back of the plate is shattered and ejected into the vehicle, along with the projectile.

Note: With ductile types of plugging, the shell is still intact and exhibits little or no change of shape. With brittle plugging, the shell is not intact and exhibits a major change of shape. The size of the plugs knocked off the backside of the armor are also larger.


Modes of armor failure


Types of armor piercing shells

There are a few different types of projectile designs, which have different advantages and disadvantages. There is the standard armor piercing (AP) shell. And the armor piercing capped (APC) shell. This is an AP projectile fitted with a cap that prevents it from shattering. There is also armor piercing ballistic capped (APBC). This is an AP shell fitted with an aerodynamic windscreen to improve its ballistic coefficient, but does not prevent it from shattering. Then there is an AP shell fitted with both types of caps (APCBC). This not only enhances its ballistic coefficient but also prevents it from shattering.

Note that most of these designs have a tiny cavity at their base, which is filled with explosive. This works to burst the shell behind the armor plate, increasing the damage it does. The other type of shell is armor piercing high explosive (APHE). This is a regular AP shell, but with a larger explosive filling. Then there is armor piercing composite rigid (APCR). These types of projectiles have a dense tungsten core and an aluminum body. They have excellent penetration, but poor aerodynamics.

As a general rule, projectiles without an armor piercing cap tend to defeat armor through brittle fractures and brittle plugging. When they do succeed in punching through an armor plate, they leave jagged holes wider than the caliber of the shell. Projectiles with an armor piercing cap tend to defeat armor through ductile hole growth, petaling, or plugging. When they punch through an armor plate, they leave neat holes that are the same width as the shells caliber. Keep in mind that these distinctions are not absolute, and there are instances when capped and uncapped shells can defeat armor in different ways than this.

Its also important to note that the nose shape of the projectile can also have an influence on how it interacts with the target plate. Blunt nosed projectiles have an increased tendency towards plugging (of both the brittle and ductile variety). Sharp nosed projectiles have an increased tendency towards petaling and ductile hole growth. [1] The difference in nose shape also influences their effect on unsloped vs sloped armor. Blunt nosed projectiles are superior against sloped armor plates, whereas sharp nosed projectiles are superior against unsloped armor plates.

Types of armor piercing shells


T/D ratio and sloping

Failure mechanisms for armor are largely dictated by the T/D ratio, where T is the armor thickness and D is projectile diameter. (Simply divide the former by the latter) The T/D ratio dictates that the more the thickness of the armor plate exceeds the diameter of the projectile, the harder it is for the incoming shell to achieve a penetration. The converse is also true of course, and the more the diameter of the projectile exceeds the thickness of the plate, the easier it is for the shell to achieve penetration. To put it simply, larger shells have an advantage over relatively thinner plates. Whats more interesting is that T/D ratio can also determine whether or not the degree of sloping in an armor plate is effective or not.

One way to demonstrate this is by looking at the hull front of a Sherman tank. Early models had a 51mm thick glacis sloped at 56 degrees, for an LOS thickness of 91mm. Later models had a 63mm thick glacis sloped at 47 degrees, for an LOS thickness of 92mm. Even though there was practically no difference in either plates line of sight (LOS) thickness, the later model of Sherman actually offered superior resistance. Because of the more favorable T/D ratio, they had a higher chance of withstanding hits from 75mm APCBC projectiles. The 51mm thick glacis was equal to 98mm of RHA, while the 63mm thick glacis was equal to 118mm of RHA. (Assuming there were no flaws in the armor itself) [2]

Another important phenomenon to understand is shell normalisation. There is a popular misconception that when a shell hits an inclined armor plate, it will turn by a few degrees before digging into the armor, thus reducing the acute angle it has to negotiate. Such that a 50 degree slope becomes a more manageable 45 degree slope, or some other such reduction. In fact, this is not what actually happens. Normalisation only occurs after the shell has dug into the armor, not before. So when a projectile hits an inclined armor plate, the net result is that it ends up making an S-shaped hole. The difference in the angle of the entrance and exit hole is what leads people to believe that 'normalisation' has taken place.

This is not how normalisation works!
 

Manufacturing defects

The last factor we'll examine are manufacturing defects that occur at the mill where armor plates are heat treated and tempered at. These mechanical flaws in the structure of the armor will reduce its resistance to impacting projectiles, sometimes by a small amount, sometimes by a severe amount. There are a number of different factors that can lead to substandard armor plate being produced. Early in the war, the U.S. experienced problems with manufacturing defects. The Sherman tank made extensive use of cast armor, not only in the turret but in the hull as well. These armor castings frequently suffered from hot tears and shrinkage cracks. [3] RHA plates were not without problems either, and were sometimes found to be riddled with stringers and laminations. These problems stemmed mainly from the huge expansion of the U.S. tank industry, which went from producing over 300 tanks in 1940, to over 23,000 tanks in 1942. The sheer quantity of armor plate required meant a decline in quality control.

Later in the war, the Germans also had their fare share of trouble with manufacturing defects. By early 1944, they were suffering from a shortage of alloying elements like nickel, tungsten, molybdenum, and manganese. This forced them to reduce the quantitys of these critical alloys, or to find substitute alloys. In order to ensure that their armor plates did not suffer from brittleness or flaws, a different method of heat treatment also had to be utilised. The Germans eventually settled on the so-called interrupted quench process. [4] This required great precision in the tempering of the plate, and if the timing was not within a certain margin, the plate would be mechanically flawed. It was not always possible to detect armor with defects. The steel mills were unable to achieve consistent quality control, and were unintentionally churning out many flawed plates.

The Soviet Union experienced some notable problems with manufacturing defects, as well. These issues weren't as ubiquitous as those plaguing the Sherman tanks, but they still cropped up relatively often. The Americans noted their presence in a number of different metallurgical reports. Some of these difficultys can be linked to the fact that much of the USSRs industry had to be hastily evacuated to the Urals in 1941, in order to avoid being captured by the invading German army. The rest can be linked to the fact that Russia was technologically less advanced than the other great powers. Armor castings (especially on the KV-1 tank) tended to have issues with hot tears and shrinkage cracks. RHA plates were sometimes not adequately cross-rolled, and were incompletely quench hardened. [5] This resulted in uneven hardness levels in an armor plate, an undesirable feature. The high hardness armor of the T-34 was noted for its tendency to create spall.


Sources

[1] World War II Ballistics: Armor and Gunnery, by Robert D. Livingston. (Page 15 and 16)

[2] World War II Ballistics: Armor and Gunnery, by Robert D. Livingston. (Page 28)

[3] World War II Ballistics: Armor and Gunnery, by Robert D. Livingston. (Page 6 and 7)

[4] World War II Ballistics: Armor and Gunnery, by Robert D. Livingston. (Page 8 and 9)

[5] Metallurgical Examination of Armor and Weld Joint Samples from Russian Medium Tank T-34 and Heavy Tank KV-1. (Page 1 and 9)

Tuesday, March 26, 2019

RE: The 5 Shermans = 1 Panther “myth”

This is yet another response to the war of tanks themed blog, For The Record. The site has a bad habit of posting misleading articles which are full of faulty conclusions. This article is no exception. It attempts to discredit the notion that German tanks such as the Tiger or Panther could achieve significantly higher kill ratios against American tanks like the Sherman. The author in question (Priory of Sion) asserts that technical characteristics and crew training were, in fact, not the determining factor in this. He argues that whichever side spotted the enemy first was the one that held the upper hand, and would obtain the higher kill ratio. Since the attackers had to expose themselves, they were usually spotted by the defenders first. There is certainly some truth to this argument, but he makes the error of assuming that this was the most important factor of all in a tank vs tank engagement. Priory of Sion seems to believe that the Panther tank had some deficiency in fire control that made it inferior to the Sherman. He comes to this conclusion by relying on a single questionable source: The infamous BRL memorandum No. 798. As we shall see, these mistakes will serve to largely invalidate his article.


The classic David vs Goliath battle


Origins of the legend

The post starts out with an examination of the notorious dictum that it took four or five Shermans to defeat one Tiger (or Panther) tank. To be sure, the 'Tiger legend' can be found in the memoirs of many WW2 veterans. The tank had a fearsome reputation all out of proportion to the small numbers that were produced. It gave Allied tankers an inferiority complex about their Shermans, and led to many instances of tank terror among the infantry. Many soldiers eventually came to the conclusion that the only way the lumbering beasts could be defeated was to send an entire platoon after just one tank. The TV show, Greatest Military Clashs, even did an episode on the Tiger myth. Annoyed with all the undeserved praise being heaped on the German 'cats', Priory of Sion decides to track down the origin of the 'five vs one' rumor. His investigation (which probably involved no more than a 5 minute google search) leads him to conclude that the legend originated with Belton Cooper. A veteran of the 3rd armored division, who authored the 1998 book called Death Traps. This memoir is particularly hated by teaboos and freeaboos, due to its unflattering depiction of the Sherman tank. Priory of Sion (who we'll call POS for now) throws the blame for the 'five vs one' legend squarely at the feet of Belton Cooper, and asserts that it is a dictum with little supporting evidence.

In fact, a closer look at the historical records show that the Panther\Tiger myth pre-dates Coopers book by several decades. Even if we assume that it didn't actually originate in the Second World War itself, it must have arisen very soon after. More importantly, the legend was echoed by authors with  higher academic standing than old man Cooper. In Janusz Piekalkiewicz' 1986 book, he states: "According to U.S. Army statistics, it cost five Shermans or some nine T-34s to destroy one Panther." [1] That pushs back the date established by POS by 12 years. In his 1975 book, Bruce Culver claims: ''An unofficial rule of thumb in the U.S. Army was that it took five Shermans to knock out a single Panther.'' [2] That pushs back the date by 23 years. But the real nail in the coffin is when you read the memoirs of Henry Giles, who firmly states that: “It took four of our Shermans to equal one of their Panthers and about eight to equal one of their Tigers.” [3] His book was published in 1965. Thats a full 33 years before Death Traps hit the book shelves. When taking that all into consideration, its becomes clear just how far off the mark POS and his conclusions are. The five to one legend wasn't something that Belton Cooper just pulled out of his ass sometime in the 90s: It was already a well established myth by that point.


Overclaiming by the 3rd and 4th armored

In order to disprove the notion that the Panther was superior to the Sherman, Priory of Sion proceeds to bring out his trump card: BRL memorandum No. 798. The sacred document held in reverence by all freeaboos and teaboos. This report summarises numerous tank engagements on the western front during the 1944 period. To come to their conclusions, the BRL used after-action reports from the 3rd and 4th armored divisions. These were the most successful formations in the U.S. army, and were not really representative of the army as a whole. The 3rd AD entered into combat on July 9, while the 4th AD entered into combat on July 17. When the war was finished, and they turned in their unit diaries, researchers were startled at what they read. The 4th armored claimed to have made 847 tank kills, while the 3rd armored claimed to have made 1023 tank kills! That is a combined total of 1870 kills, a really incredible number that stretchs credibility to the utmost. Because the BRL memorandum is based on these kill claims, it is important to explore whether or not they are realistic. BRL memo no. 798 covers a period of August to December 1944. In the interest of fairness, we should assume that the 3rd and 4th armored scored only half their kills during this time frame.

But even with this generous assumption, the American claims still don't add up with the losses actually recorded by the Germans. They wrote off a total of 4973 AFVs on all fronts, a number that includes 2861 tanks. [4] Those are the losses that were sustained by dozens of panzer and panzergrenadier divisions that were fighting in four different theaters: The eastern front, the western front, the Italian front, and the Balkan front. If the BRL memorandum is correct, then it means that fully 18.8% of their AFV losses in that period (935 tanks) were from these two armored divisions! Thats completely absurd. And just to put things into even starker contrast, consider this. Many of the 4th armored divisions claims were made during the battle of Arracourt. They reported the destruction of at least 285 German tanks and SPGs during the battle. [5] But there is a glaring error with this claim... And that is because the Germans didn't even deploy that many tanks during the battle! They only fielded 262 tanks and SPGs at Arracourt, and of that number, only 86 of them were destroyed beyond repair (I.E., write offs). [6] This shows how idiotic it is to make conclusions based solely on unit diarys. Without further verification, they are completely unreliable and misleading. It is now clear that the U.S. army routinely overclaimed the number of tanks they destroyed.


The first six lines cover Sherman
versus Panther engagements


Unverified claims by the BRL
 
Out of the 86 tank engagements recorded by the two armored divisions from August to December, there were 30 encounters between the Sherman and the Panther. In these battles, the Americans lost 21 tanks, while the Germans lost 72 tanks. Thats a loss exchange ratio of 3.4 to 1. The Shermans were on the defense in 20 of these encounters, while the Panthers were on the defense in 10 encounters. There were also 14 engagements between tank destroyers (TDs) and Panthers. In these battles, the Americans lost 3 tank destroyers, while the Germans lost 26 tanks. These facts by themselves should tell us that something is wrong. In the month of September alone, the 4th armored divisions lost 41 Sherman tanks and more than a dozen tank destroyers. [6] Many of these losses came during the battle of Arracourt, when they faced off against waves of unsupported Panthers. This allows us to make a simple conclusion: The BRL was not recording every single engagement that the two divisions participated in. They pre-selected engagements for their study and cherry picked their data. This observation becomes hard to deny once you understand that they studied a total of 86 engagements, in which only 158 enemy weapons (including 105 Panthers) were claimed as killed. In that same period, however, the 3rd and 4th armored divisions probably made half of their 1870 kill claims.

The BRL was using a form of statistical misrepresentation, because they screened out some of the battles these formations participated in. They only looked at those encounters for which there was firm and reliable data. A valid excuse, perhaps, but one that skews the results. The end result is that it paints the U.S. army in a better light, making them look like some real monsters. So when we examine the table for memorandum no. 798, we have to realise that this is not what the typical outcome of a battle was. It doesn't even make sense that the American tanks could have such a massive advantage simply by being on the defensive. POS seems to rationalise this as a result of the Sherman having far better optics than the Panther, but when you look at the respective telescopes, its obvious that this can't be the case. So how do we explain such an absurd disparity in effectiveness between the vehicles? Simply put, we can't. The only sane conclusion to make is that the 3rd and 4th armored divisions were exaggerating their kill claims, and the BRL was cherry picking what battles they studied. For this reason, the memorandum no. 798s claim that the Sherman was x times more effective than the Panther can be dismissed as uncorroborated nonsense.


Sources

[1] Tank War 1939-1945, by Janusz Piekalkiewicz. (Page 254)

[2] Panther in Action, by Bruce Culver. (Page 4)

[3] The G.I. Journal of Sergeant Giles, by Henry Giles.

[4] Armored Champion: The Top Tanks of World War II, by Steven Zaloga. (Page 223)

[5] The Lorraine Campaign: An Overview, September-December 1944, by Dr. Christopher R. Gabel. (Page 17)

[6] Armored Thunderbolt: The U.S. Army Sherman in World War II, by Steven Zaloga. (Page 192)

Thursday, February 21, 2019

TankArchives: 85mm gun vs Tiger I

Introduction

This article will examine the Soviet tests on the Tiger I tank. Or more specifically, how it was portrayed by a spin doctor named TankArchives. This notorious individual has made a career out of interpreting Soviet military reports and memorandums dating from World War 2. He has a long track record of distorting evidence and making dishonest claims, as part of an agenda to change public perception of the Nazi-Soviet war. As per his blog name, he fancys himself as an expert on all things related to armored vehicles. TankArchives also has a major problem with objectivity. When translating these wartime reports, he just can't help but insert his own dialogue into the middle, drawing his own facile conclusions about what was going on. This habit becomes most jarring whenever he translates Soviet reports on German vehicles. TankArchives never hesitates to use this as an opportunity to 'bash' them for 'design flaws.' His antics were the subject of a thorough rebuttal a while back.
 
In that instance, he was making biased, incorrect, and subjective interpretations about the kubinka test on the Tiger II. He tried to mislead his audience into thinking the tanks armor was suffering catastrophic failures, when in fact this was simply not the case. TankArchives omitted to show the photographs that depicted what was really going on. He also grossly exaggerated the effects of the hits and marginalised German armor quality. This article is no exception. As before, we'll look at the exact same report as TankArchives and examine whether or not his claims misrepresent it. The format of this article will be somewhat different from the last rebuttal. Previously, we focused solely on the results of the 122mm test, mainly because it was the first weapon used. That approach wouldn't work here, though, because the 85mm was one of the last weapons tested. Therefore, we'll have to do an overview of the other guns that were fired in the trials. This is actually a crucial piece of context that undermines some of TankArchives conclusions about the Tiger I.


The Tiger I after being fired at by the 
85mm S-53 and 122mm A-19 gun


The firing tests, part one

In this part of the trials, the Soviets fire three different weapons against the Tiger tank. The 45mm L46 and 45mm L66 gun guns were tested against the sides, while the 57mm L73 gun was tested against the side turret and front hull. Although the side armor was pierced numerous times, it did not crack at any point. There were no penetrations of the front armor.

45mm L46 gun: Five shots were fired against the side of the turret, from a range of 200 to 500 meters. Two of them penetrated.

45mm L66 gun: Nine shots were fired against the side of the turret and side of the hull, from a range of 100 to 500 meters. Six of them penetrated.

57mm L73 gun: A total of ten shots were fired against the side and front of the hull. Three of them managed to penetrate. We'll examine these in more detail.

-Shot #1 was fired from 800 meters against the hull side: It penetrated.

-Shot #2 was fired from 1000 meters against the cupola: It penetrated.

-Shot #3 and #4 were fired from 1000 meters against the hull side: One shell penetrated, and one shell left a dent.

-Shot # 5, #6, and #7 were fired from 1450 meters against the turret side. None of the shells penetrated, and instead left only dents.

-Shots #8, #9, and #10 were fired from 500 meters against the hull front. None of the shells penetrated, and instead left only dents. A weld seam is also burst.


57mm AP to upper front plate


The firing tests, part two

In this part of the trials, the Soviets fire three different weapons against the Tiger tank, including a British and American gun. The 57mm Mk IV and 75mm M3 gun were tested against the sides, while the 76mm L42 gun was tested against the side turret and the front hull. Although the side armor was pierced numerous times, it did not crack at any point. There were no penetrations of the front armor.

57mm Mk IV gun: Six shots were fired against the side of the turret and side of the hull, from a range of 625 to 1000 meters. Three of the shots penetrated.

75mm M3 gun: Seven shots were fired against the side of the turret and side of the hull, from a range of 400 to 650 meters. Five of the shots penetrated.

76mm L42 gun: A total of eleven shots were fired against the side and front of the hull. Regular AP shells were used, in addition to HVAP shells. Astonishingly, none of them managed to penetrate (!). We'll examine these in more detail.

-Shot #1 and #2 were fired from 650 and 400 meters against the hull side and turret side. Both failed to penetrate.

-Shots #3 and #4 were fired from 200 and 500 meters against the turret side and hull side. Both failed to penetrate.

-Shots #5, #6, and #7 were fired from 500 meters against the hull front. All three failed to penetrate, and left only dents.

-Shots #8 and #9 were fired from 300 and 200 meters against the hull front. Both failed to penetrate.

-Shots #10 and #11 were fired from 400 and 200 meters against the hull side. Both failed to penetrate.


76mm HVAP to upper front plate


The firing tests, part 3

In this part of the trials, the Soviets fire two different weapons against the Tiger tank. The 75mm L55 gun, and the 85mm L55 gun. We've finally gotten to the main event, the entire point of this article. The Tiger I has been quite badly shot up by this point, but has held up quite well to the abuse. This part of the test is when the frontal armor is finally penetrated.

76mm L55 gun: Six shots were fired against the side of the turret and side of the hull, from a range of 500 to 1450 meters. Only one of the shots penetrated.

85mm L55 gun: This is the more interesting part of the trials. A total of six shots were fired at the side of the turret and front of the hull.

-Shot #1 was fired from 800 meters against the turret side: It penetrated.

-Shot #2 and #3 were fired from 1450 meters against the turret side: It penetrated.

-Shot #4 was fired from 1000 meters against the lower front plate: It penetrated.

-Shot #5 was fired from 1500 meters against the upper front plate: It left a large dent, but did not penetrated.
 
-Shot #6 was fired from 1500 meters against the lower front plate: It hit next to the previous shot and broke a piece of armor loose.


85mm AP to lower front plate

85mm AP to upper front plate

85mm AP to lower front plate


Conclusions about the firing test

So, what can kindof conclusions we take away from the tests? Well to be frank, the methodology of the Soviets is bizarre. They used eight different weapons and fired a total of 60 shots at the Tiger I. * They even used guns from Britain and America, in a test of questionable relevance. They also showed a myopic focus on the side armor. They only tested three weapons against the frontal armor, and two of them (the 76mm guns) proved completely helpless. And yet, that didn't seem to alarm the Soviets at all.
 
Rather than extensively test their most powerful weapon against this formidable tank, they were content to only fire three shots at the Tigers front! It makes no sense. They didn't even test the armor of the turret face! They merely fired at the upper and lower front plate. One can't help but get the feeling that they had tunnel vision. The Soviets didn't even bother to fire a second shot at the UFP, after the first shot failed. They did that for the LFP, but not the UFP! The entire trial was marked by a lack of curiosity bordering on negligence.

The true effectiveness of the 85mm S53 gun is hard to determine. These tests show that it could penetrate the Tiger Is glacis from 1000 meters. However, subsequent tests showed that it was unable to penetrate the turret face from 400 meters. [1] While the gun was nearly as powerful as the vaunted 88mm L56, it had serious problems with ammunition quality. Wartime Soviet shells did not use armor piercing caps to soften the forces of impact on themselves. The projectiles also had a brittle and soft nose which gave them a bad tendency to shatter against armor at close range. [2] As a result, they had a rather narrow envelope from which they could effectively penetrate.

The cracking of the Tigers LFP is an interesting effect. One of the weld seams had already been burst during the 57mm test. And once the 85mm was fired at it, this was the last straw that broke the plate. The location of the hit was likely a factor, too. Shot #6 not only landed next to shot #4, but it also hit near the edge of the plate. The vulnerability of the LFP became clear in previous tests with the 57mm gun, when the it was suffering greater damage than the UFP. This plate was a definite weakpoint, and was regarded as such by the Germans themselves. Thats why crews would insert pieces of track on top of it, in order to provide extra protection.


TankArchives interpretation

In the previous article, it was noted that TankArchives has a poor grasp of metallurgy and ballistics. He looks upon any instance of brittle behavior in the armor plate and chalks it up to nothing more than low quality. He didn't understand that the kind of ammunition being used will influence how the armor reacts. British, American, and German weapons all used capped shells which defeat armor through ductile hole growth. Soviet weapons used uncapped shells which can only defeat armor through brittle fractures. TankArchives has consistently ignored how differently the test vehicles will perform when fired at by different types of ammunition! **

He trys to frame the 85mm gun as the achilles heel of the Tiger I, just as he framed the 122mm gun as the bane of the Tiger II. But the quality of these two tests are diametrically opposed. One of them is thorough and rigorous, while the other is not. In the 122mm test, there were a total of eleven shots against the front armor: Seven against the glacis, and four against the turret. In the 85mm test, there were a total of three shots against the front armor: Three against the hull, and none against the turret. Its hard to draw many conclusions from this, especially when the results conflict with other tests. [1]

Another thing that must be mentioned is the dishonest manner in which TankArchives presents these tests. At no point in his article does he tell the audience that the Tiger had already been shot at dozens of times by a bunch of different weapons, and had held up to the punishment remarkably well. In fact, its much worse than this: He actually hides the results of some of the trials! He wrote at least five articles covering the tests on the Tiger I, and not one of those articles mention the tests involving the 76mm L42 or 76mm L55 gun. Thats his dirty little secret. The main weapon used on the T-34\76 tank, and the main field gun of the Red Army, was completely useless against the front armor of this tank.

This is a shocking omission that really throws his objectivity into question. When covering these ballistics tests, he only reported on the guns that managed to successfully pierce the tanks armor. In trials where the gun failed to make a significant impression, he simply refused to report on them at all! TankArchives is clearly a biased author who has an agenda of making German tanks look as bad as possible, while making Soviet weapons look better than they really were. His work is marred by dishonesty, exaggeration, and outright lies.


Notes

*And thats not counting the huge 122mm L46 gun used at the very end of the test!

**In the Tiger II tests, the tanks armor stopped acting brittle when it was fired upon by German 75mm and 88mm guns. In the Tiger I tests, the tanks armor stopped acting brittle when it was fired upon by the British 57mm and American 75mm guns. What an astonishing coincidence!


Sources

[1] Demolishing the Myth: The Tank Battle at Prokhorovka, Kursk, by Valeriy Zamulin. (Page 433)

[2] World War II Ballistics: Armor and Gunnery, by Robert D. Livingston. (Page 11)

Monday, February 11, 2019

TankArchives: 122mm gun vs Tiger II

Introduction

This article will examine the Soviet tests on the Tiger II tank. Or more specifically, how it was portrayed by a spin doctor named TankArchives. This notorious individual has made a career out of interpreting Soviet military reports and memorandums dating from world war 2. He has a long track record of distorting evidence and making dishonest claims, as part of an agenda to change public perception of the Nazi-Soviet war. As per his blog name, he fancys himself as an expert on all things related to armored vehicles. TankArchives also has a major problem with objectivity. When translating these wartime reports, he just can't help but insert his own dialogue into the middle, drawing his own facile conclusions about what was going on. This habit becomes most jarring whenever he translates Soviet reports on German vehicles. TankArchives never hesitates to use this as an opportunity to 'bash' them for 'design flaws.'

The Soviet tests were conducted at kubinka, in November 1944. The temperatures on that day were -10 celsius, which may have adversely effected the ductility of the armor. This must be kept in mind when examining how the armor reacted to these strikes. In this article, we'll look at the exact same report as TankArchives and examine whether or not his claims misrepresent it. We'll also look at some photographs that were provided in the report and make conclusions based on what they show. This will provide a contrast to the one sided reporting of TankArchives. An example of this is how, at the start of his article, he throws objectivity out the window and presents a picture of the Tiger II tank from after the trials were over... After it had been fired on by 122mm, 100mm, 152mm, and 85mm guns. An intelligent and objective reader immediately gets put off by this.


The Tiger II after being fired at by the 
122mm A-19 and 100mm BS-3 gun


Specifications of the armor and gun

The Tiger II was without a doubt the best armored tank of the second world war, the culmination in a long line of progressively heavier 'breakthrough tanks.' Its frontal armor is especially impressive. The upper front plate (UFP) is 150mm thick and sloped at 50 degrees from the vertical. The lower front plate (LFP) is 100mm thick and sloped at 55 degrees. The turret face is 180mm thick and sloped at 10 degrees. We can use this information to determine what the line of sight (LOS) thickness of these armor plates were. The Tigers upper front plate had an LOS thickness of 233mm, while the lower front plate had an LOS thickness of 174mm.

The 122mm gun came in two different models, the A-19 which has an L/46 barrel, and the D-25T which has an L/43 barrel. The former was a field gun, the latter was used by tanks and assault guns. The A-19 model had slightly higher performance, and was the variant used in this test. According to the 50% criteria, it could pierce 212mm of armor at 100 meters, 200mm at 500 meters, and 182mm at 1000 meters. [1] This was when using the BR-471B shell, which had a ballistic cap (basically, a windscreen that improved its aerodynamics). The regular BR-471 shell had no cap, and somewhat lower penetration.


The firing tests, part one

In this portion of the test, five shots are directed against the upper front plate (UFP).

Shot #1 is an HE shell against the UFP, from 100 meters. The only damage is a shallow scuff mark, and burst weld seams. There was some spalling as well. TankArchives crows about the results, saying the shell has literally torn the tank apart. Which is utter nonsense, as the glacis itself is clearly still intact.

Shot #2 is an AP shell against the UFP, from 2700 meters. The impact left a shallow scuff mark, but did no damage. TankArchives is disappointed by the result and has little to say.

Shot #3 is an AP shell against the UFP, from 500 meters. The impact left a deep scuff mark and caused spalling. TankArchives crows about the results, lecturing about the perils of 'overhardened armor.'

Shot #4 is an APBC shell against the UFP, from 600 meters. The impact actually makes a clean penetration. TankArchives crows about the results, saying the 'low quality' of the armor has let the crew down.

Shot #5 is an APBC shell against the UFP, from 700 meters. The only damage is a shallow scuff mark, and burst weld seams. TankArchives crows about the results, lecturing about the perils of 'overhardened armor.'


Whats interesting about the original five shots against the glacis plate is that only one of them (shot #4) actually managed to penetrate. All the others failed to do so and only caused secondary damage through spalling or whatnot. Shot #4 and #5 used a brand-new APBC shell, called the BR-471B, which has superior performance to regular AP. And yet, there are oddities in the results that TankArchives pays no heed to.

Does he notice that while shot #3 pierces the armor, the shell doesn't actually pass into the tank? Nope. Does he notice that the 100 meter range difference between shot #3 and #4 was enough to render the APBC shells ineffective? Nope. Hes is clueless and ignorant as ever. Despite claims to the contrary, it seems that the Tiger IIs glacis plate is actually very tough, and holding up quite well to the abuse.

Also, do you see the boisterous manner in which TankArchives reports on these firing tests? He isn't conveying them in an impartial or unbiased tone. Hes literally cheering from the sidelines like a drunken football fan, ranting about the 'inferior' German tanks and their 'brittle' armor. And he wonders why people don't take him seriously, or dismiss his work as propaganda? It would be funny if it wasn't so ridiculous.


Shot #1

Shot #2

Shot #3

Shot #4

Shot #5


The firing tests, part two

In this test, two shots are against the lower front plate (LFP), and two are against the turret face.

Shot #6 is an AP shell against the LFP, from 2500 meters. The impact left a shallow scuff mark, but did no damage. TankArchives is disappointed by the result and has little to say.

Shot #7 is an AP shell against the LFP, from 600 meters. The impact left a shallow scuff mark, but did no damage. TankArchives is disappointed by the result and has little to say.

(After this, there is a big gap, as the Soviet testers switched to other guns and fired at the tank. They used 100mm, 152mm, and 85mm guns. Testing then resumes with the 122mm against the Tiger IIs turret, which is already damaged from prior impacts)

Shot #34 is an AP shell against the turret face, from 2500 meters. The shell hit next to a previous shot and knocked a piece of armor loose. TankArchives crows about the results, lecturing about the perils of 'overhardened armor.'

Shot #35 is an AP shell against the turret face, from 3400 meters. The shell cracked the armor, but otherwise did no damage. TankArchives is disappointed by the result and has little to say.


In this firing sequence as well, there are certain oddities. The 122mm gun actually made four shots against the turret face (#32, #33, #34, #35), but TankArchives chooses to only report on two of them (#34, #35). Who knows what his reason for doing this are? The true value of this sequence is questionable, anyway, since the turret has already been damaged by previous shots.


Conclusions about the firing tests

So, what can kindof conclusions we take away from the kubinka tests with the 122mm gun on the Tiger II? First, the regular HE and AP shells cannot pierce the glacis plate, they can only cause spalling or whatnot. Second, the brand-new APBC shells can only pierce the glacis plate from relatively short range (600 meters and under). Third, all the shells mentioned will perform better against the thinner armor of the turret face.

The 122mm A-19 struggles to defeat this beast of a tank, and its literally the best gun in the entire Soviet arsenal! Its performance is actually quite comparable to the 88mm kwk 43 gun used by the Tiger II itself. We can measure their power by using the 50 percent criteria. When firing APBC shells, the 122mm could pierce 212mm of armor at 100 meters. [1] When firing APCBC shells, the 88mm could pierce 232mm of armor at 100 meters. [2] This was against an unsloped armor plate.

But when tested against an armor plate sloped at 50 degrees, the results are quite different. At 100 meters distance, the 88mm APCBC can only pierce 106mm of armor, while the 122mm APBC can only pierce 120mm of armor. For some reason, the Soviet shell performs better against highly sloped armor than the German shell. This is likely due to the T\D ratio, the thickness of the plate compared to the diameter of the shell.

As for the behavior of the armor plates themselves. The fact that they suffered from spalling and burst weld seems is not completely surprising, given the size of the impacting shells. Another factor is that Soviet ammunition did not use an armor piercing cap to soften the forces of impact on themselves. [3] For this reason, they can usually achieve penetration only by exceeding the shear strength of the plate itself. They defeat armor by brittle fractures, rather than ductile hole growth.


The damage caused by capped vs uncapped
ammunition is starkly apparent in this image



TankArchives interpretation

There are a number of problems that loom over all the articles written by TankArchives. One of them is that he is clueless about metallurgy and ballistics. He seems to labor under the delusion that any time the armor doesn't reject the shell with zero damage to itself, that this is somehow indicative of low quality! This is complete nonsense because even high quality armor can fail when subjected to powerful enough attack. He doesn't understand that just because the armor suffers a brittle fracture doesn't automatically mean that its defective.

Another thing that escapes his notice is how differently the Tiger IIs armor behaves when attacked by German and Soviet shells. In addition to the 152mm, 122mm, 100mm, and 85mm guns, the kubinka tests also featured the 88mm and 75mm guns. When fired on by the latter two weapons, the 'brittle' plates suddenly don't act brittle. They experience ductile failure modes, because they are being hit with capped ammunition. TankArchives has complete tunnel vision: He cannot fathom the idea that the impacting shell also influences how the plate behaves!

Another problem is the tone in which he interprets these test results. It is clearly done in the style of someone who is an ultra-nationalist and historical revisionist: Someone who has no interest whatsoever in impartiality. TankArchives comments are reminiscent of the dialogue box in God of War, when you score points from racking up combos. "Vicious!" "Sadistic!" "Savage!"; "Inhuman!"; "Bloodthirsty!"; "Relentless!"; "Merciless!" He isn't even analysing the results, hes just turned himself into a human laugh track.


He presents his claims in such an absurd manner that an intelligent and objective readers simply shake their head in disgust and stops reading... Which leaves only the unintelligent or subjective readers remaining. Exactly the kindof audience TankArchives wants! Its a brilliant example of nigerian phishing. As wikipedia points out in this article: "By sending an email that repels all but the most gullible, the scammer gets the most promising marks to self-select." You have to give him credit for that, at least: He knows the market.


The laugh track


Sources

[1] World War II Ballistics: Armor and Gunnery, by Robert D. Livingston. (Page 50)

[2] World War II Ballistics: Armor and Gunnery, by Robert D. Livingston. (Page 61)

[3] Soviet Armed Forces Review Annual - Volume 14, by David R. Jones. (Page 260)

Wednesday, February 6, 2019

U.S. army vs German army

This essay will attempt to summarise the difference in fighting power between the U.S. and German army during the later stages of world war 2. This is a subject which is still plagued by many myths and half truths, which are regurgitated as fact on some online forums. Fighting power is a military attribute determined by human and organisational aspects rather than technological ones. For this reason alone, it is the most important factor in determining just how tough and capable a ground force really is. Some of the most important qualitys are leadership skills, training, cohesion, initiative, command staffs, personnel selection, resource allocation, inter-branch cooperation, tooth to tail ratio, discipline and justice, etc. According to Martin van Creveld: “While weapons and methods of warfare change, the nature of fighting power does not; though the relative proportion of the individual qualities listed may vary from time to time, the qualities themselves are the same today as they were for Caesars veterans 2000 years ago. Though good equipment can, up to a point, make up for deficient fighting power (the reverse is also true), an army lacking in the latter is a brittle instrument at best. History, including recent history, bristles with examples of armys that, though ostensibly strong and well equipped, disintegrated at the first shock of combat through sheer lack of fighting power.” With that distinction in mind, we can come to grips with a litany of evidence which proves that the U.S. army possessed lower fighting power than the German heer.

The case is on solid ground because combat prowess is best displayed in challenging situations. 'Challenging' certainly describes Germanys strategic situation by 1943, when they were caught in a two front war without a realistic hope of victory. To fight on with great talent and energy in such circumstances, to outfight and outmaneuver more numerous enemys, is surely the sign of a highly proficient military. But this survey is not without its challenges. Those who acknowledge that the German army was more competent than its opponents (or that they achieved things unparalleled in other armys) are frequently given the derogatory label wehraboo. There are many reasons why people would prefer to ignore the heers combat record in WW2, not least of which is the many war crimes they committed. The problem was pointed out by Max Hastings: “The Allies in Normandy faced the finest fighting army of the war, one of the greatest that the world has ever seen. This is a simple truth that some soldiers and writers have been reluctant to acknowledge, partly for reasons of nationalistic pride, partly because it is a painful concession when the Wehrmacht and SS were fighting for one of the most obnoxious regimes of all time.” The current sentiment of the west is that tolerance and diversity are essential values for all successful nations, and the fact that Nazi Germany displayed none of them creates a disconnect. Hence why people use dismissive labels rather than factual arguments. But thats enough psychoanalysis for today, lets get down to the heart of the matter!


The U.S. armys perception of fighting
 power, which omits some categorys


Basic training

This is a huge subject which covers the training of every soldier in every branch of the army, and could easily consume several blog posts to give an adequate overview. But for now, we'll take a much narrower focus and just look at the basic training given to all new recruits, before they are assigned to their branch of choice (whether it be infantry, armor, or artillery). While theres a common perception that every man can serve as a rifleman in an emergency, the reality is much more disappointing. Throughout history, it often happens that support troops will unexpectedly get drawn into the fighting, whether they are ambushed behind friendly lines or encircled by an enemy force. Rear area personnel don't posses the confidence and training of infantry soldiers, and hence will often give a poor account of themselves in firefights. In modern war, there have been far too many cases where they surrendered en masse without firing a shot. This is highly undesirable, given that support troops make up most of an armys numerical strength. Ideally, they need to be capable of defending themselves, guarding their perimeter and reinforcing depleted front line units. So how did the two armys compare with regards to basic training? To put it simply, the Germans were heads and shoulders above the Americans. All of their new recruits were trained extensively as infantry, regardless of the role they would eventually occupy. [1]

Even if these men went on to become barbers, cooks, or chauffeurs, they still possessed skills that made them equal to an American rifleman, and they could be depended on to serve as auxiliary soldiers in desperate occasions. This was seen time and time again throughout WW2, but most notably in the later stages of Stalingrad and Normandy, when German troops were employed in improvised battlegroups called alarmeinheiten. [2] This was an economy of force measure that compelled rear area personnel to take responsibility for their local defense, so that the few combat soldiers remaining could focus their efforts at the center of gravity. The wehrmachts training imparted an action-oriented mindset on the men, who showed an amazing willingness to pickup a rifle and fight the enemy on foot. {N1} This steadfastness was partly the result of their political indoctrination, which gave the rank and file a real sense of what they were fighting for, and thus a place and purpose in the larger scheme of things. (Always important when soldiers are confronted with the carnage of war, which removes them from their normal reference frame) It was also partly because the Germans placed a greater emphasis on teaching their recruits about field craft and small unit tactics, before they moved on to their occupation of choice. Meanwhile, the Americans were content to give their recruits only a brief and partial overview of the same.

Conclusion: Without accounting for occupational speciality's, the average German underwent more infantry-related training than the average American. That is to say, German support troops were more reliable in combat than were American support troops. A not unimportant factor when considering the shortages of infantry that were experienced by both sides.


Officer training 

The importance of leadership skills is obvious in most careers, never mind in the field of warfare where the costs of losing are so high for a nation. No matter how individually skilled the soldiers are, and no matter how well they co-operate as a team, they must be directed by a competent leader if they are to win battles and campaigns, much less a war. Different societys have different expectations on just how much payoff is provided by competent leaders, though. The ancient greeks believed that an army of sheep (led by a lion) was better than an army of lions (led by a sheep). Most nations throughout history weren't quite so optimistic. That question aside, how do we judge which army has the better leadership caste? In order to answer this, we need to know the difference in how both armys selected and trained their officers, and how that impacted their ability to lead men on the battlefield. The biggest distinction between the Germans and the Americans is how their men received a commission. In the German army, a candidate would be forced to prove his worth as an NCO before he could hope to receive officer training. In the U.S. army, a candidate was able to go straight to officer training after completing basic. The consequences of this should be fairly obvious. Working alongside the enlisted men allowed the candidates to better understand their mindset, and to judge how a leaders actions affected the rank and file. Moreover, this practise meant that all the ranks have been through the grind of field duty (with no shortcuts allowed), and that officers owe their rank to the simple fact that they are a better soldier than the rest. That strengthened the cohesion between officers and enlisted men.
 
In total, the German candidate underwent 4-6 months of NCO training, followed by 2 months of service at the front. This enabled the school to see how they performed under pressure, before the men were offered or denied a commission (as a fahnenjunker). Thats an entire layer of preparation American candidates never had the opportunity to undergo! {N2} By the time officer training began, they were already behind the Germans in a number of critical areas like navigation, flanking maneuvers, using supporting weapons, adjusting artillery fire, etc. More important was the structure of the courses themselves. Germans learned to think on their feet and find solutions in hopeless circumstances. They were encouraged to challenge the instructors when given imprecise answers. Americans dealt with map exercises rather than field problems, and long written orders instead of brief verbal commands. Their thoughts were disregarded by the instructors, who reinforced the importance of sticking with a 'school solution.' [3] The German would have spent 8 weeks at a kriegsschule and 12-16 weeks at a truppenschule, while the American would spend 4 weeks at a preparatory school and 13 weeks at officer candidate school. {N3} Not surprisingly, this resulted in huge differences between how they led men in the field, which is best summarised by Jorg Muth: “American observers before the war failed to recognise upfront leadership as a decisive peculiarity of German combat excellence. German units often were provided with leadership in the most desperate and crucial situations, which enabled them to either attack or defend against heavy odds.”

Conclusion: The disparity in competence between German and American officers is huge. By the time they finished officer training, the German leutnants had a superior grasp of battle tactics, leadership skills, and a more aggressive command style. Its unsurprising that the American 2nd lieutenants (the so-called '90 day wonders') were often at a monumental disadvantage in combat.


Americans have bosses,
but Germans have leaders

Initiative

For the purposes of this article, initiative will refer to subordinates taking risky courses of action without oversight from their superiors. The mechanisms determining whether or not an army is capable of high initiative are as much cultural as they are organisational. There must be an atmosphere that justifys the ends over the means, and rewards innovation as long as it provides results. Using an example, lets say that a unit leader initiates an attack and experiences lots of resistance, when he decides to leave his sector and follow in the wake of another unit making better progress. [4] Will he be punished for disobeying orders, or commended for arriving at the objective? In such an instance, the American officer could expect reprimand, while the German officer could expect praise. This dichotomy can be observed in any number of engagements between the two armys. [5] In an attack, the Americans would rely on a tightly choreographed operation with artillery support and air superiority. After initial successes brought about by the sheer weight of supporting fire, they would soon encounter stiff resistance which stalled the attack. The Americans would then become demoralised and wait for additional orders or reinforcements. In the defense, German front lines would often be obliterated by a barrage of shellfire, leaving a nearby group of soldiers with a huge responsibility. Without the time to consult superiors, they would act on instinct and rush forward to plug the gap. Utilising either a counter-attack or hasty defense, the Germans would then vigorously fight off the enemy troops who tried to exploit their breakthrough.

These anecdotes hint at the preferences both armys have for the execution of missions: The Americans focused on planning, while the Germans focused on improvisation. The difference in thought is also reflected in how either side would replace leaders who were killed or wounded in action. The U.S. army had a large surplus of junior officers on standby who could act as substitutes, whereas the German army had NCOs who were trained to think two levels above their rank. [6] [7] When the leader of an American unit was KIA, his men needed to wait for HQ to send a replacement. But when the leader of a German unit was KIA, his subordinate simply took over and continued the mission. This was beneficial on time sensitive missions, or when snipers were out in force and targeting officers. One should not forget the matter of cohesion, either. The American system meant the men would be led by a stranger, while the German system ensured they would be led by someone known to the men. From all indications, the practise of over-qualifying NCOs to replace junior officers appears to be the better approach. While some would claim that the Americans and Germans were no different when it came to leader replacement, this simply isn't borne out by the facts. Officers only comprised 2.86% of the German army, whereas officers made up 7.1% of the U.S. army. [8] More importantly, 70% of German officers were stationed in fighting units, while only 36% of American officers were.

Conclusion: Success doesn’t depend on having the perfect plan. It depends on changing plans to match circumstances fast enough for the changes to be effective. American leaders were frequently hampered by indecisiveness, while German leaders displayed great initiative at all levels. As a result, unexpected developments in battle affected them less than it would in other armys.


Command staffs

There are many different types of staffs which command many different types of units and formations, but for the intent of this article, we'll be focusing on divisional level headquarters as they existed in 1944-45. A German infantry division had 38 officers, and 446 men of other ranks, for a total of 484 in the HQ. A U.S. infantry division had 79 officers, and 430 men of other ranks, for a total of 509 in the HQ. [9] Whats most interesting here is the disparity in the number of officers: Even if you exclude their divisional artillery staff, which brings the count to 94 officers, the U.S. headquarters contain twice as many officers than the Germans. This matter has some consequences for the efficiency of divisional HQs, particularly for the staffs that issue operational orders. Even if all other things were equally balanced (which they certainly aren't, as we will see shortly), the presence of so many extra officers increases the managerial overhead and changes the span of command. {N4} In the words of Jim Storr: “It is also quite obvious that almost everybody above the working level in an HQ is superfluous, except the commander and COS. This applies in almost every HQ, especially the large ones. What the higher ranks achieve is a requirement for more briefings to them and meetings between themselves.” Also notable is that U.S. divisional staffs were far less specialised for operations (I.E, combat leadership) than their German counterparts. Both the American and German staffs had four separate sections. The Americans had personnel G1, intelligence G2, operations G3, and logistics G4. The Germans had operations SI, personnel SII, justice SIII, and quartermaster SIV.

One difference is that the German chief of staff doubled as the operations officer SI, and was given complete authority over the other three sections. By contrast, the American chief of staff had someone else to act as the operations officer G3, and had no real authority over any of the four sections. [10] [11]  Thats quite a sub-optimal arrangement. Another key factor deserving of mention is the differences in command style. The German army practised something called mission command. This involved a superior outlining a mission for subordinates, but not a plan on how to execute it: They were trusted to use their imagination to provide the desired results. {N5} On the other hand, the U.S. army practised what could be called detailed command. This involved a superior outlining not only a mission, but an intricate plan on how to accomplish it: Subordinates were tasked merely with putting the plan into motion. Why is this important? Because modern war has shown time and again that a commander at some distant HQ cannot hope to get an accurate picture of the situation on the ground. They can't read the enemys mind and predict how they will react, and hence, they can't foresee the best possible employment for their units throughout the mission. When subordinates are neither trained nor permitted to deviate from the plan (or reject it in favor of another), they can't exploit fleeting opportunity's for success, nor can they improvise to avoid certain defeat. In order for that to happen, commanders must delegate authority so that the right man at the right spot can apply ad hoc solutions when they are needed most. During world war 2, only one army in the entire world could do this effectively and consistently.

Conclusion: Though comparable in many ways, German HQs have fewer officers and a greater emphasis on operations. By effectively enabling them to run the show, the Germans are able to make decisions and deliver orders more quickly. The decentralised method of problem solving represented by mission command (or auftragstaktik) is also an undeniable advantage, which was imitated by several armys in the aftermath of WW2.



Above is the staff of a German HQ. 
Below is the staff of an American HQ.


  
Cohesion
 
Cohesion is a term which describes the camaraderie and teamwork of soldiers within a unit. There is both low level cohesion, and high level cohesion. Low level cohesion can be created simply by having soldiers train together on a regular basis, and develop mutual respect and understanding. High level cohesion is more complicated, though: According to William Henderson, it requires the men have a common race, religion, language, and culture. If they aren't among people who they can consider part of an extended family, they won't develop the intense loyalty required to stick together in the heat of battle. The German soldiers all had a very homogeneous background, owing to the racial policys of the nazi party. Some SS formations recruited non-whites into their ranks, and the regular heer had some minoritys in hilfswillige and ostlegionens, but they were segregated from the rest of the army. The American soldiers also had a very homogenous background, because they came from a mostly white nation. Its true that there were small numbers of blacks in the army, but they were employed either in support roles or in segregated combat units. While important, these facts don't properly convey the whole picture. Armys engaged in major wars will experience rapid depletion of their manpower, especially in the infantry branch which comprises only 6-10% of an armys strength but suffers some 60-90% of the total casualties. As said by Dwight Eisenhower: “Modern armies are wholly dependent on men carefully trained in difficult skills. Replacements on a numerical basis do not mean much. It is replacement with trained men that counts.”

Attrition has a deleterious effect not only on soldier quality, but on unit cohesion as well. One advantage possessed by the Germans was their system for replacing personnel who were lost in battle. Every division had a training battalion where new personnel were transferred to, and who were all conscripted from the same military district (wehrkreise) as the other men in the division. This gave them a common background that aided with integration. Contrast this to the American system, where the personnel selected came from any number of divisions, and any number of different states. {N6} It was not unusual for southerners to be dumped into a formation of east coasters, and vice versa. This made integration much more difficult and often resulted in poor teamwork. Also important is how the replacements were assigned to their new units after completing basic training, and how they received hard-earned lessons from the veterans (to avoid taking unnecessary losses in battle). The Germans had their recruits kept together and sent to the front lines while under the command of decorated soldiers, who would introduce them to the formations history and traditions. [12] [13] Upon reaching their assigned sector, the men would participate in drills with the rest of the division, and comfortably find their place among a larger team. Meanwhile, the Americans had their recruits shipped to a replacement depot, where they were then broken up and sent individually (or in small groups) to the front lines. Not only did they have no personal connection to the formation, but veterans were often wary of the men and didn't befriend them, which led to the recruits becoming socially isolated.

Conclusion: The Americans and Germans were equal in terms of low and high level cohesion, until they started to suffer heavy casualties. Whenever they needed to call on replacements to get back to full strength, the Americans suffered from a drop in social cohesion and combat skills, qualitys which rarely wavered among the Germans. As a result, they could not withstand the effects of attrition as well.


Summary

With regards to the human factors, we can clearly see that the U.S. army was not at the same level as the German heer. Even after the terrible losses sustained after three years of fighting on the eastern front, when many of their best troops were KIA or WIA, the Germans consistently displayed greater fighting power than the Americans. Mathematical models (which are consistent with field reports from mid '43 to mid '44) indicate that on a man per man basis, the Germans were 20% to 30% more effective than the Anglo-American forces, and inflicted 50% higher losses than they incurred in all circumstances. Regardless of whether they were attacking or defending. The high fighting power of the heer enabled them to punch above their weight, and eke out a stalemate in battles that they actually should have lost. More than anyone else, they understood the importance of personnel and organisation, and how it forms the bottom line for everything else that follows. Nor is it easy to delineate where one quality ends and another begins, because there is so much overlap between them. For instance, great command staffs provide hidden benefits for the soldiers under their helm, since they are less likely to micromanage subordinates and stifle their initiative. Additionally, the practise of having officer candidates prove their worth as NCOs builds cohesion between the officers and enlisted men.

Over-qualified NCOs who can replace dead or wounded leaders will help safeguard the units morale in times of desperation, when they are at the greatest risk of fracturing. This isn't even touching on the methods used at the officer schools, which included giving the candidates problems that could only be solved by disobeying orders. The dividends this provided for the Germans are all too obvious. As one commentor put it: “To a limited degree, all German soldiers were like british commandos – because they were encouraged (trained) to think for themselves... Wehrmacht units, even if all the officers had been killed, would sometimes 'reform' and fight again. Even as late as 1944 German units that had been 'destroyed' came back and attacked. British and American forces thought they were facing new German units – when they were actually facing ones they thought they had already destroyed.” Despite all their disadvantages at the strategic level (including a chronic shortage of fuel, which made it difficult to conduct mobile warfare), the Germans were frequently able to confound the Americans and bloody them at the tactical level. While some armys have the characteristics of a glass cannon, the heer fought equally well in victory and defeat. They bitterly resisted their foes for the entire duration of the war, regardless of how bleak the situation was.


Notes

{N1} That attitude was present even in the luftwaffe and kriegsmarine, which used their own training facilitys separate from those of the heer. Sailors without ships and pilots without planes would choose to fight the enemy rather than surrender, displaying such determination that the OKW decided to deploy them into combat divisions in the last years of the war. While the loss of so many ships and planes was unfortunate, they were clever in utilising every bit of manpower they had.

{N2} Some sources indicate that by the time they received their commission, the fahnenjunkers were done in their training as platoon leaders. Instead, officer training was meant to lay the foundations for a well rounded leader who could perform a variety of different roles in a pinch.  'Any lieutenant may, at any time, have to educate, train, and lead a company, battery, or other similar unit, and any lieutenant may suddenly have to serve as a staff officer or even as an adjutant or aide-de-camp.'

{N3} There are other differences, but giving an adequate overview is difficult. Very important is that German officers were given cross branch training to get familiarised with a different field, i.e, armor officers would go to the infantry, infantry officers would go to the artillery, etc. [14] [15] This gave them a major advantage in combined arms operations. Moreover, the front trials allowed schools to weed out candidates who were not fit for officer rank, before they were entrusted with the lives of 30-50 men!

{N4} There are other oddities as well. The German headquarters had 139 men in the staff, 41 in the military police (and map department), and 304 men in logistics. The U.S. headquarters had 166 men in the staff, 239 in the military police, and 104 men in logistics. Those are some messed up priorities which indicate the Americans may have had serious problems with stragglers and deserters. Their justice system was certainly more lax than the Germans.

{N5} In order for auftragstaktik to work properly, the subordinate needs to understand the superiors intent, and the superior needs to outline the mission in unambiguous terms, which requires a complete uniformity of thinking on both their parts. If there was any confusion on either end, the results could end up compromising the mission. There also needs to be a culture that witholds judgement from those who fail while daring greatly.

{N6} Comically enough, some of the infantry replacements came from music bands, sanitation teams, and administration staffs! During the invasion of Normandy, only 37% of these men were rifle trained, and fewer still knew anything about small unit tactics. [16] Another fault of the American system was the refusal to return WIA men to their unit after recovery, a practise which was mandatory among the Germans.


Bibliography

-Martin Van Creveld. “Fighting Power: German and U.S. Army Performance 1939-1945.” Praeger, 1982. / Reason: General reference.
-Jörg Muth. “Command Culture: Officer Education in the U.S. Army and the German Armed Forces, 1901-1940.” University of North Texas Press, 2011. / Reason: The officer training of both armys.
-Max Hastings. “Overlord: D-Day and the Battle for Normandy 1944.” Vintage, 1984. / Reason: General reference.
-Joseph Balkoski. “Beyond the Beachhead: The 29th Infantry Division in Normandy.” Stackpole Books, 1989. / Reason: The command staffs of both armys, and their replacement systems.
-R.L. DiNardo. “Germanys Panzer Arm.” Stackpole Books, 1997. / Reason: Training in the german army.
- John English and Bruce Gudmundsson. “On Infantry.” Praeger, 1984. / Reason: General reference.


Links

[1] DiNardo, Page 57.
[2] Hastings, Page 183.  Not be confused with kampfgruppen.
[3] Muth, Page 138 and 195.  These problems were endemic to the CGSS and other schools.
[4] English and Gudmundsson, Page 63.
[5] Hastings, Page 185.
[6] DiNardo, Page 63.
[7] English and Gudmundsson, Page 64.
[8] Hastings, Page 50.
[9] Van Creveld, Page 49 and 52.
[10] Balkoski, Page 102.
[11] Van Creveld, Page 48.
[12] Balkoski, Page 225.
[13] Van Creveld, Page 75.
[14] Muth, Page 166.
[15] DiNardo, Page 64.
[16] Hastings, Page 167.

Thursday, January 31, 2019

RE: Common Myths About WWII

This is a response to a popular article that was posted a few years ago on the blog, For The Record. FTR is a site associated with the online game war of tanks. They make frequent posts that circle around the game and its setting: Tank combat during the 30s to 60s. The quality of these articles vary wildly depending on the topic in question. They are of respectable quality until it comes to WW2, in which case FTR delves into full on historical revisionism. Among other things, they are strongly opposed to the theory that the German army was a uniquely powerful and competent military force. Any individual who makes that claim is shouted down and decried as a Wehraboo. Unfortunately for FTR, this theory happens to be supported by all the known facts about the Heers organisation, and from their performance against opposing armys during WW2. The usual consensus among historians is that the Germans were simply overwhelmed by the burden of fighting against three huge empires, and the superior industrial resources they could muster. One of the authors at the blog (EnsignExpendible) decided that he'd finally had enough with this theory. He proceeded to write a misleading article that trys to dispute the Heers superiority in weaponry and tactics. This is the post that we will dismantle today.

In keeping with the 'war of tanks' theme, the author has most of his criticisms focused on armored warfare. The Ensign was wise to choose a narrow subject that played to his strengths, but even then, he falls well short of managing to do a proper debunking. Normally, this kind of biased opinion piece wouldn't even warrant a response. But since it is being promoted on revisionist forums like ShitWehraboosSay, it has now become a worthwhile effort to debunk this article. To be sure, the Ensign is clearly a lightweight without much understanding of warfare in general. Most of his points are forced, and rely on pairwise comparisons of equipment (17 pounder guns vs Tiger tanks, for example). Worse yet, he relys very heavily on websites like TankArchives for sources. The site in question is run by a Russian blogger who makes a career out of translating Soviet field reports from the war, and using them to make deceptive claims... Much like EnsignExpendible himself does. Could there be a connection between these two individuals?


These are the kindof stupid memes 
that get promoted on the FTR blog


Fact: Shermans were not especially fire-prone (consider German tanks that also used gasoline engines, but avoid this reputation). Fires were caused by improper storage of ammunition, when it was literally stuffed everywhere inside the tank it could fit. The end of this practice drastically reduced the number of Sherman fires.

Heres another fun fact: In order for a tank to catch fire, its armor has to actually be pierced. Its true that the Shermans weren't any more fire-prone than the German tanks they faced. But the problem is, its armor was pierced much more frequently than the opposition. In one study, 95% of Shermans hit by 75mm or 88mm guns were penetrated, and of those tanks, 65% were burned out. [1] We can safely conclude that its armor was too thin to keep out enemy shells, therefore. Thats one of the reasons why the Sherman acquired a bad reputation after the war. On the other hand, the crews had a pretty good chance of escaping their vehicle alive if it was struck. The roomy interior, spring loaded hatches, ductile armor, and (later) wet ammo stowage were responsible for this.


Fact: The Ronson nickname is attributed to the slogan “lights every time”. The slogan was launched post-war, and thus could not influence the nickname.

Are you seriously claiming that the Ronson nickname was a postwar fiction? On what grounds are you dismissing the memoirs of veterans like David Holbrook and Steel Brownlie, who disparagingly compared the Sherman tanks to a lighter? Why do you dismiss Ian Hogg, who noted in his 1977 book that ''the Germans nicknamed them Ronsons because of their tendency to burst into flames when hit''? Its true that all these books weren't published until after the end of WW2. However, there are online images which show the slogan in use years before the war. This ad poster is dated from 1929, and it already has the theme: ''A Ronson lights every time.''


Myth: German tanks in general, and Tigers in particular, were impervious to Allied guns.
Fact: Tigers were vulnerable to even Shermans armed with 75 mm guns. The longer 76 mm gun (superior in AP performance to the Soviet 85 mm gun, which could handle Tigers just fine) had no problem with Tigers or Panthers. 

Thats nonsense. The 75mm M3 gun used by the Sherman was completely useless against the Tigers frontal armor, and was unable to penetrate it even from point blank range. This is made clear from the data about the armor and gun in question, and is also borne out by countless testimonys from veterans and field reports. In combat, the Shermans 75mm gun was only useful against the Tigers side armor. As for the 76mm M1 gun, while this was certainly a better weapon, it was far from ideal. With standard ammunition, it could only penetrate the Tigers mantlet from 100 meters, and the glacis from 400 meters. [2] The 76mm gun was unable to pierce the Panthers glacis from any range at all, and could only penetrate the mantlet from about 200 meters. [3] So where do you get off saying that the 76mm gun had no problem with the German 'cats'? The enemy tanks were able to knock them out from much longer range than vice versa!

Your claims about Soviet tank guns are equally facile. While the kinetic energy of the 85mm S53 gun was even greater than the 76mm M1 gun, in practise, it was hampered by the choice of ammunition. Like most Soviet guns, they used uncapped shells with a soft and brittle nose. As a result, they had a bad tendency to break up against tank armor. German tests reveal that the 85mm guns could only pierce the Tigers turret (not mantlet) from 500 meters, and the glacis from 300 meters. [4] In contrast, the 88mm KWK 36 gun could pierce the T-34/85s armor from a much longer range. So really, your examples only confirm how much of a disadvantage the allies were at in these tank on tank duels. There was obviously a reason why they needed numerical superiority to win battles.

Myth: German tanks and crews were superior to anything the Allies had, and achieved an X:1 kill to death ratio (the number varies greatly).
Fact: The flaws of German kill counts are covered in detail here and here.

The first source you listed is a rant about nothing. Since when does a different method of counting losses qualify as 'flawed' or 'cheating'? A German panzer unit would keep damaged vehicles on the unit list and report a reduced operational readiness rate. An American or British tank unit would have damaged vehicles stricken from the unit list and replaced with new vehicles. So the only real difference here is that the Nazis were simply less willing to send damaged vehicles back to army level workshops. As one source put it:“German commanders were loath to write off panzers and instead carried them on their books ad infinitum, wary of sending them back to the homeland for fear they would never be replaced. As a result, dead vehicles would be dragged forward during an attack, and dragged backward during a retreat.” [5] And with regards to the panzers overclaiming the number of kills they scored, this is hardly something unique to the Germans. This was observed in all armies of the period, including the Americans, British, and Soviets. The reason is simple: Not all tanks that were hit or even knocked out were so badly damaged that they had to be written off. Some of them could be repaired, and returned to service.


Myth: Soviet optics were abysmal, and their guns inaccurate, to the point where they could not engage enemy targets at more than a few hundred meters.
Fact; Soviet guns do not lack mechanical accuracy, and are occasionally more accurate than their German counterparts. As for optics, Americans praised them at the Aberdeen trials: “Consensus: the gun sights are the best in the world. Incomparable to any currently known worldwide or currently developed in America.”

The 'great Soviet optics' claim was made by U.S. army personnel that were used to dealing with crappy American scopes. They weren't comparing it to German stuff because they had none to test. As a matter of fact, the M38 telescopic sight used by the Sherman tank was so bad that the U.S. army was demanding a replacement by early 1943. ''We must have a better optic for our guns, something with a four power to six telescopic power and something focusable. The sight should have a larger reticle and it must be illuminated for night fighting. This is extremely important; it should be changed immediately.'' [6] So while its true that Soviet scopes were better than the American designs, this is damning with faint praise. German crews who rode in captured T-34 tanks were disappointed with the optical suite, saying ''the gun sights in Russian tanks are far behind the German designs.''


Gunsight of the Tiger I tank


Myth: The T-34 was a very unreliable tank, as proven by trials at Aberdeen.
Fact: While trials at Aberdeen uncovered some flaws in early T-34 tanks, the tank sent to them was an obsolete model that went through major refurbishment. Furthermore, American testing was flawed (for example, they failed to oil up the air filter). Read more details here and here.

Thats only half true, Ensign. From all indications, the tank tested at Aberdeen in 1942 was ''specially prepared using the highest quality parts at the Ural Tank Factory (UTZ), which at that time produced the best T-34s in Russia.'' So any automotive flaws encountered with the vehicle are inherent to its very design. We know that the early T-34 tanks had major problems with their transmissions and final drives. One source states that they would require maintenance after a journey of 50 to 80 kilometers. Another claims that the T-34 could not travel more than 200 kilometers without an overhaul. A disappointing performance, to be sure. According to the Aberdeen report: ''On the T-34 the transmission is also very poor. When it was being operated, the cogs completely fell to pieces. A chemical analysis of the cogs on the cogwheels showed that their thermal treatment is very poor and does not in any way meet American standards for such mechanisms.'' These reliability problems were not fixed until 1943, when the tanks received a better clutch and transmission.


Myth: The King Tiger could not be penetrated by any tank gun.
Fact: The Tiger II was penetrated many times by various weapons in trials. Even the meek 85 mm gun on the T-34-85 was capable of dealing a fatal blow to it at 300 meters. 

You know what the difference between trials and combat is? The difference is, the 'target' isn't moving around and shooting back at you. The kubinka test you're so eager to mention involved the vehicle being fired at (in sequence) by 122mm guns, 152mm guns, 100mm guns, and 85mm guns. The armor package was already compromised by the time the 85mm gun got its turn, so that part of the test is invalid. Just look at the firing tests against the glacis plate! The first sequence was done with the 122mm A-19 gun. Most of the shells fired at the Tiger II failed to pierce the glacis plate: They only caused spalling and burst weld seams. The second sequence was done with the 152mm ML-20 gun. None of the shells fired at the Tiger II managed to pierce the glacis plate. Even from 100 meters, they could only burst weld seams and spall the armor.  The third sequence was done with the BS-3 gun. The 100mm shells only managed to penetrate when they hit weakened portions of the glacis, or the connections between the upper and lower front plates.

This is a trial weighted heavily in favor of the Soviet guns, and they aren't even doing that good of a job. Out of those three guns, the only one that could make a clean penetration was the 122mm A-19, and only when using a specially designed shell that came into service in 1945! It pierced the glacis at 600 meters, but only made a dent at 700 meters. Smaller caliber guns had no hope of dealing with the vehicle from a frontal aspect. Think about it, Ensign. The 85mm gun struggled to knock out even the Tiger I. When firing from an angle of 30 degrees, it could only penetrate the Tiger Is turret from 500 meters, and the glacis plate from 300 meters. [4] So what could possibly lead you to believe that this same gun could pierce the much thicker armor of the Tiger II from the same range? They were the heaviest, best armored tanks ever to enter service during world war 2. The kubinka test bears this out in full.


Myth: Germans had the best optics in the entire war.
Fact: Not really, just some minor advantages in sight form factors (and not glass quality, like is often said). Daigensui explores the topic here. 

Minor advantages? Your own link acknowledges that the German optics have a wider field of view (FOV) than American optics of the same magnification. The TZF 5f sight used by the Panzer IV had a 25 degree FOV at 2.5x power, while the TZF 9c used by the Tiger had a 28 degree FOV at 2.5x power. In contrast, the sight used by the Sherman had only a 13 degree FOV at 3x power. Thats a fairly substantial difference, Ensign. The telescopic sights on the Tiger or Panther tanks also had adjustable magnifications, meaning they could go from 2.5x power to 5x power. This, along with their stadiametric notches, gave the Germans a notable edge in long range gunnery. Don't forget, the tank that strikes its target first will usually win the engagement! And despite your claims to the contrary, the panzer optics did indeed posses higher glass quality. A French army report stated: ''The clarity and ranging reticles of the periscope gun sight was excellent and more effective than of the allied counterpart, the Sherman.'' This isn't surprising. During the interwar years, Zeiss had developed a coating method that enabled a higher level of optical clarity than any other manufacturer. The Americans had nothing to compare it with.


Myth: Germans could knock out Allied tanks at great ranges, and routinely did so from distances as great as 2 kilometers or even greater.
Fact: Research indicates that the average engagement range was only several hundred meters. Shots from over 1 kilometer were either rarely taken, or rarely reached their target.

The article you link to mentions a study by P. S. Igumnov. This survey was about Soviet tanks destroyed on the eastern front, where the line of sight (LOS) is longer than anywhere in europe. But the article doesn't elaborate on what year this study was conducted, or what the sample size was. Did Igumnov survey 200 Soviet tanks, or 2000 of them? These questions matter. Your own table states that the 88mm guns were scoring kills at longer range than the 75mm guns. The 88s were getting 31.2% of their hits at 600-800 meters, and 13.5% of their hits at 800-1000 meters. The 75s were getting 33.5% of their hits at 400-600 meters, and 14.5% of their hits at 600-800 meters. Anyway, its a well known fact that German guns COULD knock out Soviet tanks from great ranges. The T-34s were shockingly vulnerable to the 88mm flak gun, which was later adapted for use in the Tiger I. In October 1943, a tank commander named Kurt Knispel knocked out a T-34 tank from 3000 meters, the longest range tank kill of the war. But of course, these kinds of shots were the exception rather than the rule. Even in the steppes of russia and the ukraine, most kills were made at considerably shorter range.


Myth: The Panther was a great tank that could have turned the tide of the war if only _________.
Fact: Panthers, even the latest models, were full of mechanical issues, such as final drives that lasted 150 kilometers. The_Chieftain goes over them here. Additionally, the armour was of exceptionally poor quality, cracking after non-penetrating hits. 

Gee, do you think? World war 2 was the largest conflict in human history. The chain of events were far too complex to be decided by a single line of vehicles, no matter how impressive their performance may appear to be. While its true that the Panthers had issue with their final drives (as the early models of T-34 did), the sheer extent of this problem has often been exaggerated. The French experience of the tanks only going 150 km before a break down needs to be tempered with the reality that those crews weren't trained to properly operate the Panther. They had a bad habit of keeping the tank in 3rd gear during long marchs, and then controlling the speed using only the accelerator rather than shifting to the higher gears. This is something that German crews had been explicitly warned not to do, as it would lead to premature stripping of the cogs. [7] The 3rd gear was under-designed because it wasn't meant to spend much time in that position: It was only meant to be a transition to the higher gears. But even so, the notion of the Panthers final drives having a 'fatigue life of only 150 km' is bizarre and anomalous. The German manuals don't say anything about them having such a short time between overhauls.

And in fact, there are numerous incidents where this figure was exceeded by a long shot.  The 11th panzer division was engaged in heavy fighting from August 1944 onward. * They attempted to contain the allied landing in southern france, and conducted several long road marchs. By regulation, the Panther tanks required an overhaul after 800 km. But due to the frantic combat and constant retreats, the 11th panzer division was unable to stick to regulations. By the time September 1944 rolled around, some of the Panthers had over 1500 km on their odometers! [8] They operated over a distance ten times greater than the French claimed was possible. And that isn't all. The British actually did tests on a captured Panther tank which had 500 miles (800 km) on it. The vehicle was  worn out, and needed repairs to the engine and steering. Afterwards, however, it was able to successfully pass an obstacle course that both the Sherman and Cromwell failed. It was then put through two additional trials, which is when the transmission finally broke down. That means it traveled five times further than the French claimed was possible. This is not to say that the final drives were not a weak point, its just that the problem has been blown completely out of proportion.


Sources

[1] British Armour in the Normandy Campaign, by John Buckley. (Page 125)

[2] M26/M46 Pershing Tank 1943–53, by Steven J. Zaloga. (Page 10)

[3] Panther vs Sherman: Battle of the Bulge 1944, by Steven J. Zaloga. (Page 25)

[4] Tiger 1: Heavy Tank: 1942-45, by Thomas Jentz. (Page 20)

[5] Repairing the Panzers: German Tank Maintenance in World War, by Lukas Friedli.

[6] M4 Sherman at War, by Michael Green. (Page 85)

[7] Panzers at War, by Michael Green. (Page 87)

[8] Ghost Division: The 11th "Gespenster" Panzer Division and the German Armored Force in World War II, by Harding Ganz. (Page 266)


Notes

*The 11th Panzer division would have had 79 Panthers and 81 Panzer IVs, for a total establishment of 160 tanks.