Question on sub armor

jazzabilly · 01-07-09, 02:27 PM

I am not a metallurgist, but....

I would suspect that the pressure hull of a submarine has got to be one of the hardest targets of all; the ultimate in "sloped armor". I would have to imagine that it would take a pretty large AP round to pierce a concave piece of metal designed to withstand huge outside pressure, while it is on the surface and not "under pressure".

The DC, on the other hand, works by shockwave against a hull that is already under pressure, therefore I can easily understand how a pressure hull could be breached or cracked.

The other bits of a submarine (mechanical gear, periscopes, vents, propeller shafts etc. allow for flooding at their points of ingress into the hull, so from that perspective I can easily envision flooding/damage from that.

I have a hard time believing that a 20mm or 40mm round can penetrate a pressure hull. 8"? Sure. 5"? I guess.

So here is my question; please explain the physics of penetrating a pressure hull with lower calibres.

I do understand and appreciate the effects that 20mm fire on exposed crew on the bridge, so don't get me wrong. It's well documented, and I get it.

Here is a good article on a sub that sank without the pressure hull being breached. http://members.lycos.co.uk/brisray/misc/mkclass2.htm

01-07-09, 03:41 PM

Quote:

Originally Posted by jazzabilly

So here is my question; please explain the physics of penetrating a pressure hull with lower calibres.

well your logic is sound but there is a lot of flat or near flat and very shallow angled areas on subs so location of the hit is a big factor too.

as for the pressure hull you have it backwards, it would be easier to pierce a hull not under pressure than one with pressure in it. try hitting a soda bottle with and then without a cap.

i do agree with you that the game gives you more damage from small rounds than i think is correct.

NEON DEON · 01-07-09, 04:56 PM

Is there a way to reduce penetration values by range?

01-07-09, 07:21 PM

Quote:

Originally Posted by NEON DEON

Is there a way to reduce penetration values by range?

AFAIK you can change hit power and armor levels but not by range

01-07-09, 02:27 PM	#1
jazzabilly Planesman Join Date: Dec 2008 Location: Vancouver BC Posts: 186 Downloads: 11 Uploads: 0	I am not a metallurgist, but.... I would suspect that the pressure hull of a submarine has got to be one of the hardest targets of all; the ultimate in "sloped armor". I would have to imagine that it would take a pretty large AP round to pierce a concave piece of metal designed to withstand huge outside pressure, while it is on the surface and not "under pressure". The DC, on the other hand, works by shockwave against a hull that is already under pressure, therefore I can easily understand how a pressure hull could be breached or cracked. The other bits of a submarine (mechanical gear, periscopes, vents, propeller shafts etc. allow for flooding at their points of ingress into the hull, so from that perspective I can easily envision flooding/damage from that. I have a hard time believing that a 20mm or 40mm round can penetrate a pressure hull. 8"? Sure. 5"? I guess. So here is my question; please explain the physics of penetrating a pressure hull with lower calibres. I do understand and appreciate the effects that 20mm fire on exposed crew on the bridge, so don't get me wrong. It's well documented, and I get it. Here is a good article on a sub that sank without the pressure hull being breached. http://members.lycos.co.uk/brisray/misc/mkclass2.htm __________________ If it's a fair fight, then you didn't plan it properly. ====================================

01-07-09, 04:56 PM	#3
NEON DEON Ace of the Deep Join Date: Apr 2005 Location: Los Angeles, CA Posts: 1,207 Downloads: 39 Uploads: 5	Is there a way to reduce penetration values by range? __________________ Diesel Boats Forever!