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German Balkenkreuz

Germany's 7.5-cm Pak 41

It was a taper-bore gun went from 75 mm to 55 mm.1,2 It was based on the Gerlich principle.1,2 The rounds would have special flanges that would fold back as the shell went down the barrel.1 This would increase the shells velocity out the end of the barrel.1

It was an exceedingly popular gun, and almost took over from the 7.5-cm Pak 40, but due to tungsten shortages only 150 were built.1,2

The trail legs attached directly to the shield which saved on manufacturing time.2 There was also an automatic hydraulic braking system that was operated by the towing vehicle.2 The barrel typically only lasted 400 rounds before having to be replaced.2

  7.5-cm Pak 41
Starting Caliber 2.95"1,2
75 mm1,2
Emerging Caliber 2.1"2, 2.16"1
55 mm1,2
Length of gun 14' 2"1,2
4.32 m1
Length of bore  
Rifling  
Length of rifling  
Weight traveling 2,989 lb2
1,356 kg2
Weight in action 3,064 lb1
1,390 kg1
Elevation -10° to + 18°1
0° to +16°2
Traverse 60°1,2
Muzzle Velocity AP: 3,690 '/sec2, 4,035'/sec1
AP: 1,124 m/sec2, 1,230 m/sec1
Range of shell  
Shell weight AP: 5.51 lb1, 5 lb 11.25 oz2
AP: 2.5 kg1, 2.59 kg2
Armor penetration 6.73 " @ 500 yards1
171 mm @ 455 m1
Breech mechanism  

Sources:

  1. The Encyclopedia of Weapons of World War II, 1998, Chris Bishop
  2. Artillery of World War II, Chris Chant, 2001
20th Century American Military History Crucial Site