152 mm gun-howitzer D-20
The 152 mm gun-howitzer M1955, also known as the D-20, (Russian: 152-мм пушка-гаубица Д-20 обр. 1955 г.) is a manually loaded, towed 152 mm gun-howitzer artillery piece, manufactured in the Soviet Union during the 1950s. It was first observed by the West in 1955, at which time it was designated the M1955. Its GRAU index is 52-P-546.
| D-20 | |
|---|---|
| Type | Towed howitzer |
| Place of origin | Soviet Union |
| Service history | |
| Used by | Soviet Union, many others |
| Wars |
|
| Production history | |
| Designer | Petrov Artillery Design Bureau |
| Designed | Circa 1947 |
| Manufacturer | Artillery Plant Number 9, Yekaterinburg |
| Specifications | |
| Mass | 5,700 kg (12,600 lb) |
| Length | 8.69 m (28 ft 6 in) |
| Barrel length | 5.195 m (20 ft) L/34 (with muzzle brake) |
| Width | 2.35 m (7 ft 9 in) |
| Height | 1.93 m (6 ft 4 in) |
| Crew | 8 |
| Shell | 152 mm × 547.5 mm (5.98 in × 21.56 in) .R Separate loading charge and projectile |
| Caliber | 152.4 mm (6.00 in) |
| Breech | Vertical semi-automatic sliding-wedge |
| Recoil | hydraulic buffer and hydro-pneumatic recuperator |
| Carriage | Split trail |
| Elevation | -5° to 45° |
| Traverse | 58° |
| Rate of fire | Burst: 5–6 rpm Sustained: 1 rpm |
| Muzzle velocity | 650 m/s (2,100 ft/s) (typical) |
| Effective firing range | 17.4 km (10.8 mi) |
| Maximum firing range | 24 km (15 mi) (rocket assisted projectile) |
| Sights | PG1M indirect sight and OP4M direct fire sight |
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