37mm AP vs Tempest

[Aurora_Stealth]

23 minutes ago, BCI-Nazgul said:

I find the "ricochet" concept in general a little humorous, but I suppose it could happen specially if the round already went through some other part of the plane.  Tank combat is another matter.   AP rounds ricocheted off armor pretty regularly in armored combat. 

 

Yeah, it feels a little silly thinking about it... but it could affect things; that enormous Napier Sabre engine is just... I mean even compared to the Griffon engine its just one enormous hunk of metal so trying to actually shoot through it in a meaningful way at an oblique angle might be a bit harder than it looks.

Edited April 29, 2021 by Aurora_Stealth

[JV69badatflyski]

3 hours ago, Aurora_Stealth said:

 

Yeah, it feels a little silly thinking about it... but it could affect things; that enormous Napier Sabre engine is just... I mean even compared to the Griffon engine its just one enormous hunk of metal so trying to actually shoot through it in a meaningful way at an oblique angle might be a bit harder than it looks.

It's maybe big, but it's still cast iron and cast iron (or cast alu) is still brittle. (Go to a demolition carpark with a 1kg Hammer and hit an engine block, you'll see what i mean)
A 37mm tungstene AP would not have any issues passing through it even when hit with a relatively small incidence.

[ZachariasX]

4 hours ago, Aurora_Stealth said:

I mean even compared to the Griffon engine its just one enormous hunk of metal

Just 15% heavier, but 20% less displacement, while having 20+% more power.

 

It is enormously fancier, that for sure.

 

On topic, the video doesn‘t tell us anything about how it got hit, visuals do not directly reflect actual DM recordings. This is getting better with DVD, but until then, rely on good aim.

[[DBS]Browning]

1 hour ago, JV69badatflyski said:

 even when hit with a relatively small incidence.

 

This depends on what you mean by "small incidence". Even very weak substances (even liquids or dense gasses) will deflect 37mm (or even 1000mm!) projectiles at small incidences. 

[-=PHX=-SuperEtendard]

9 hours ago, Aurora_Stealth said:

b) You need to be absolutely certain this was not a ricochet (which you can't be much sure of because DVD is not implemented yet and the video shows only a few shots fired).

 

 

8 hours ago, BCI-Nazgul said:

I think you better recheck your numbers.   An 88mm anti-tank gun is required for that amount of penetration.   Only the 37mm HEAT grenade round could penetrate that much and it was a round that could never work in an aircraft gun.  If 37mm could penetrate that much armor WW II tanks would not have needed anything bigger.

The BK 37 fires a tungsten core projectile with a muzzle velocity of 1150 m/s, and it does have 140mm of penetration at 100 meters against a flat armor plate. The tungsten core would go right through the plane, wouldn't be surprised if it could go all the way through the engine as well. I guess the softer ballistic cap and steel body could deform on impact and cause relatively big exit holes on the wing surface (not comparable to a high explosive cannon, but certainly more than just a clean 37mm diameter hole).



 

Edited April 30, 2021 by -=PHX=-SuperEtendard

[BCI-Nazgul]

2 hours ago, -=PHX=-SuperEtendard said:

 

The BK 37 fires a tungsten core projectile with a muzzle velocity of 1150 m/s, and it does have 140mm of penetration at 100 meters against a flat armor plate. The tungsten core would go right through the plane, wouldn't be surprised if it could go all the way through the engine as well. I guess the softer ballistic cap and steel body could deform on impact and cause relatively big exit holes on the wing surface (not comparable to a high explosive cannon, but certainly more than just a neat 37mm diameter hole).

OH!  It's an APCR round!  I can believe it could get through that much armor at close range.

Edited April 30, 2021 by BCI-Nazgul

[357th_KW]

22 hours ago, ZachariasX said:

Just 15% heavier, but 20% less displacement, while having 20+% more power.

 

It is enormously fancier, that for sure.

 

On topic, the video doesn‘t tell us anything about how it got hit, visuals do not directly reflect actual DM recordings. This is getting better with DVD, but until then, rely on good aim.

I’m pretty sure the Griffon and the Sabre both had the same 2240 cubic inch (36.7 l) displacement.

[ZachariasX]

1 hour ago, VBF-12_KW said:

I’m pretty sure the Griffon and the Sabre both had the same 2240 cubic inch (36.7 l) displacement.

Quiet right, I mistook that for the DB603‘s displacement. My mistake.

 

The engines are comparable in weight anyway. But looking at the rpm it can do (especially in regards to the Griffon), it‘s a very special hunk of metal.