Soviet AT guns performance vs cemented armor

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Peasant
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Posts: 798
Joined: 16 Oct 2018, 18:21
Location: Ukraine

Soviet AT guns performance vs cemented armor

#1

Post by Peasant » 02 Oct 2021, 13:57

There is still a lot of misinformation that can be found on the Internet about this topic, with many people still holding the flawed interpretation that the penetration values for soviet tank/AT guns from the official manuals are presenting their performance against face-hardened/cemented armor plate.

I'm posting here these two pages with arguments from the author in favour of installing the 45mm tank gun on the new light tank (T-70) rather than the 37mm one. Of particular note are the penetration figures reported as "theoretical performance of these guns against cemented plate at 20° obliquity".
It can be readily seen that the figures for 45mm ATG are much lower than the ones reported against homogeneous plate, with relative K coefficient higher than the usual 2400.

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Peasant
Member
Posts: 798
Joined: 16 Oct 2018, 18:21
Location: Ukraine

Re: Soviet AT guns performance vs cemented armor

#2

Post by Peasant » 17 Feb 2022, 09:40

The effect from having face hardened armour instead of homogeneous on german tanks with 50mm of armour is estimated as follows:

76mm F-34 gun:

50mm RHA/30°: 1100m
50mm RHA/0°: 2000m

50mm face hard/30°: 800m
50mm face hard/0°: 1600m

The effectiveness of FHA against significantly overmatching shells is greatly reduced, but is still superior to that of RHA.


Peasant
Member
Posts: 798
Joined: 16 Oct 2018, 18:21
Location: Ukraine

Re: Soviet AT guns performance vs cemented armor

#3

Post by Peasant » 24 Mar 2023, 11:27

Here's a visual comparison of the performance of this gun against cemented armour and penetration data against RHA taken from here.

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