In the 1960s, the anti-tank gun has replaced the infantry gun 4.7 cm.
anti-tank gun 9 cm, 50/57, model 1950 - fortress anti-tank flange gun
- caliber 90 mm Arc of training in elevation + 17° / -22°
- arc of training in traverse +/-30°
- maximum range 4300 m with maximum elevation (shell shaped charge)
- initial speed Vo 660 m/sec (shell shaped charge)
- barrel length 3000 mm Manned crew from 3 – 4 men
- maximum cyclic rate of fire 25 rounds minute
- piercing shell shaped charge, MZ, bright, weight 11 kg, training shell, bright (reducing tube 20 mm Vo 350 m/sec), training cartridge, bright (reducing tube 7,4 mm Vo 510 m/sec)
- hand loading, automatic ejection, air cooling
- weapon weight 435 kg, barrel and breech 140 kg
- barrel and cradle 150 kg
- pickup range against tanks 600m, mobile goal 800 m, fixed 1000 m