37 mm automatic air defense gun M1939 (61-K)
| 37 mm automatic air defense gun M1939 (61-K) | |
|---|---|
61-K in Saint Petersburg Artillery Museum | |
| Type | Anti-aircraft gun Autocannon |
| Place of origin | Soviet Union |
| Service history | |
| In service | 1939 – present |
| Used by | See Users |
| Wars | List of conflicts
|
| Production history | |
| Manufacturer | Podolsk Mechanical Plant |
| Produced | 1939–1945 (USSR) |
| No. built | 20,000 (USSR) |
| Specifications | |
| Mass | 2,100 kg (4,600 lb) |
| Barrel length | 2.5 m (8 ft 2 in) L/67 |
| Crew | 8 |
| Shell | 37 × 252 mmSR |
| Shell weight | 730 g (1.61 lb) Frag-T 770 g (1.70 lb) AP-T |
| Caliber | 37 mm (1.5 in) |
| Recoil | Hydro-spring |
| Carriage | Four-wheeled with twin outriggers |
| Elevation | −5° to 85° |
| Traverse | 360° |
| Rate of fire | 160-170 rpm |
| Muzzle velocity | 880 m/s (2,900 ft/s) |
| Effective firing range | 4 km (13,000 ft) (effective ceiling) |
| Maximum firing range | 5 km (16,000 ft) (maximum ceiling) |
The 37 mm automatic air defense gun M1939 (61-K) (Russian: 37-мм автоматическая зенитная пушка образца 1939 года (61-К)) is a Soviet 37 mm calibre anti-aircraft gun developed during the late 1930s and used during World War II. The land-based version was replaced in Soviet service by the AZP S-60 during the 1950s. Guns of this type were successfully used throughout the Eastern Front against dive bombers and other low- and medium-altitude targets. It also had some usefulness against lightly armoured ground targets.