76 mm air defense gun M1938

The 85 mm gun was chosen for mass production by the Soviet authorities and tooling was switched from the 76.2 mm AD guns, to the 85 mm gun. These guns were used in the first stages of the German-Soviet War and were gradually replaced by the more powerful 52-Ks. Guns captured by the Germans were given the designation 7.62 cm Flak M.38(r) and were used unmodified until their ammunition supply ran out. When their ammunition supply ran out they were rebored to fire German 8.8 cm ammunition and their designation was changed to 7.62/8.8 cm Flak M.38(r) and remained in use until the end of the war. The external appearance of the 76 mm and 85 mm AD guns is very close; the two types can be differentiated by their muzzle brake, the larger gun possessing the larger muzzle brake.

• Name — 76 mm air defense gun M1938 • Origin — Soviet Union • Type — Air defense gun • Is Artillery — yes • Production Date — 1938–1940 • Weight — Travel: 4210 kg Combat: 3650 kg • Part Length — 4.1 m L/55 • Crew — 10 • Cartridge — Fixed QF 76.2 × 558 mm. R • Cartridge Weight — 6.6 kg • Caliber — 76.2 mm (3 in) • Rate — 10–20 rounds per minute • Velocity — 815 m/s • Max Range — 9.3 km AA ceiling • Breech — Semi-automatic vertical sliding-wedge • Recoil — Hydro-pneumatic • Carriage — Four-wheeled dual-axle trailer with twin outriggers. • Elevation — -3° to +82° • Traverse — 360°