12.8 cm Pak 44

12.8 cm Pak 44
Pak 44 in firing position
TypeAnti-tank gun
Place of originNazi Germany
Service history
In service1944—1945
Used byNazi Germany
WarsWorld War II
Production history
DesignerKrupp
Designed1943
ManufacturerKrupp
Produced1944
No. built51
Variants
  • 12.8 cm Kanone 44, Pak 44
  • 12.8 cm Kanone 81/1
  • 12.8 cm Kanone 81/2
  • 12.8 cm Kanone 81/3
  • 12.8 cm Pak 80
Specifications
Mass
  • 10,160 kg (22,400 lb) 12.8 cm Pak 44
  • 7,000 kg (15,000 lb) 12.8 cm Pak 80
Barrel length7.02 m (23 ft 0 in) bore (55 calibres)

ShellSemi-fixed 128x869mmR
Shell weight
  • 28 kg (62 lb) (HE)
  • 28.3 kg (62 lb) (AP)
Caliber128 millimetres (5.0 in)
Breechsemi-automatic horizontal sliding-block
RecoilHydro-pneumatic
Carriagecruciform (some were split trail)
Elevation−7° 51' to +45° 27'
Traverse360° (some were about 90°, or less)
Rate of fire
  • 10–12 rounds per minute 12.8 cm Pak 44
  • 3 rounds per minute 12.8 cm Pak 80
Muzzle velocity950 m/s (3,100 ft/s)
Maximum firing range
  • 24,410 m (26,700 yd) 12.8 cm Pak 44
  • 12,200 m (13,300 yd) 12.8 cm Pak 80
SightsWinkelzielfernrohr 2/1 12.8 cm Pak 80

The 12.8 cm Pak 44 (Pak from German Panzerabwehrkanone "anti-tank gun") is a German anti-tank gun used during World War II. It was designed as a result of experiences on the Eastern front in 1943. The German Army came upon the Soviet 122 mm field guns and issued a requirement for a similar weapon. Development initially concentrated on a field gun known as the Kanone K 44. However, once heavier Soviet tanks such as the IS-2 started to appear, the design requirements were altered to include an anti-armour role.

The Pak 44 has short to medium-range performance similar to the 8.8 cm Pak 43, but the 12.8 cm Pak 44 better maintained its anti-tank performance over long to extreme-long ranges – 1,800–2,700 m (2,000–3,000 yd) and beyond - while also doubling as an effective field gun when firing high-explosive shells.