Armour penetration figures needed

Der Teddy Bar · 03-30-06, 08:49 PM

I am after the armour penetration in millimetres for SHIIIâ€™s small calibre weapons, such as the 20mm Oerlikon, 40mm Bofors, 2 pounder, 3â€ etc

Thanks in advance

JCWolf · 03-30-06, 09:54 PM

Quote:

Originally Posted by Der Teddy Bar

I am after the armour penetration in millimetres for SHIIIâ€™s small calibre weapons, such as the 20mm Oerlikon, 40mm Bofors, 2 pounder, 3â€ etc

Thanks in advance

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U-Bones · 03-30-06, 10:56 PM

From http://en.wikipedia.org/wiki/Armour-piercing

Second World War

During WWII, projectiles used highly alloyed steels containing nickel-chromium-molybdenum, although in Germany this had to be changed to a silicon-manganese-chromium based alloy when those grades became scarce. The latter alloy, although able to be hardened to the same level, was more brittle and had a tendency to shatter on striking highly sloped armour. The shattered shot lowered penetration, or resulted in total penetration failure, for APHE projectiles this could result in premature detonation of the HE filling. Highly advanced and precise methods of differentially hardening the projectile were developed during this period, especially but the German armament industry. The resulting projectiles gradual change from high hardness (low toughness) at the head, to a tough (less hard) rear and were much less likely to fail on impact.

<cut middle section>

Early WWII era uncapped AP projectiles were able to penetrate about 2 times their calibre at close range (100 m). At longer ranges (500-1000 m) this dropped 1.5-1.1 calibres due to the poor ballistic shaped and higher drag of the smaller diameter early projectiles. Later in the conflict APCBC fired at close range (100 m) from large calibre guns (75-128mm) were able to penetrate a much greater thickness of armour in relation to their calibre (2.5 times) and also a greater thickness (2-1.75 times) at longer ranges (1500-2000 m).

Sfinx · 03-31-06, 05:48 AM

Have a look at this http://www.wwiivehicles.com/germany/guns.html

Der Teddy Bar · 03-31-06, 07:13 AM

Sfinx,
Thanks. I found the British section

03-30-06, 08:49 PM	#1
Der Teddy Bar Blade Master Join Date: Jan 2002 Posts: 1,388 Downloads: 0 Uploads: 0	Armour penetration figures needed I am after the armour penetration in millimetres for SHIIIâ€™s small calibre weapons, such as the 20mm Oerlikon, 40mm Bofors, 2 pounder, 3â€ etc Thanks in advance

03-30-06, 10:56 PM	#3
U-Bones Grey Wolf Join Date: Mar 2005 Location: Treading Water Posts: 847 Downloads: 56 Uploads: 0	From http://en.wikipedia.org/wiki/Armour-piercing Second World War During WWII, projectiles used highly alloyed steels containing nickel-chromium-molybdenum, although in Germany this had to be changed to a silicon-manganese-chromium based alloy when those grades became scarce. The latter alloy, although able to be hardened to the same level, was more brittle and had a tendency to shatter on striking highly sloped armour. The shattered shot lowered penetration, or resulted in total penetration failure, for APHE projectiles this could result in premature detonation of the HE filling. Highly advanced and precise methods of differentially hardening the projectile were developed during this period, especially but the German armament industry. The resulting projectiles gradual change from high hardness (low toughness) at the head, to a tough (less hard) rear and were much less likely to fail on impact. <cut middle section> Early WWII era uncapped AP projectiles were able to penetrate about 2 times their calibre at close range (100 m). At longer ranges (500-1000 m) this dropped 1.5-1.1 calibres due to the poor ballistic shaped and higher drag of the smaller diameter early projectiles. Later in the conflict APCBC fired at close range (100 m) from large calibre guns (75-128mm) were able to penetrate a much greater thickness of armour in relation to their calibre (2.5 times) and also a greater thickness (2-1.75 times) at longer ranges (1500-2000 m).

03-31-06, 05:48 AM	#4
Sfinx Watch Join Date: Apr 2005 Location: Sweden Posts: 17 Downloads: 50 Uploads: 0	Have a look at this http://www.wwiivehicles.com/germany/guns.html

03-31-06, 07:13 AM	#5
Der Teddy Bar Blade Master Join Date: Jan 2002 Posts: 1,388 Downloads: 0 Uploads: 0	Sfinx, Thanks. I found the British section