152 mm howitzer M1943 (D-1)

D-1 howitzer
Type	Field howitzer
Place of origin	Soviet Union
Service history
In service	1943–present
Used by	Countries of the former Warsaw Pact and former Soviet Union
Wars	World War II Arab-Israeli War Vietnam War 2022 Russian invasion of Ukraine
Production history
Designer	F. F. Petrov
Designed	1943
Manufacturer	No. 9 Plant
Produced	1943–1949
No. built	2,827
Variants	D-15, M1943/85
Specifications
Mass	3,600 kg (7,937 lbs)
Length	6.7 m (22 ft)
Barrel length	Bore: 3.527 m (11 ft 7 in) L/23
Width	1.9 m (6 ft 3 in)[1]
Height	1.8 m (5 ft 11 in)[1]
Crew	8
Shell	Separate loading charge and projectile[1] HE; 40 kg (88.2 lb)
Caliber	152.4 mm (6 in)
Breech	Interrupted screw
Recoil	Hydro-pneumatic
Carriage	Split trail
Elevation	–3° to 63.5°
Traverse	±17.5°
Rate of fire	3–4 rounds/min
Muzzle velocity	508 m/s (1,666 ft/s)
Maximum firing range	12.4 km (7.70 mi)

The D-1 howitzer M1943 (Russian: 152-mm gaubitsa obr. 1943 g. (D-1)) is a Soviet World War II-era 152.4 mm howitzer. The gun was developed by the design bureau headed by F. F. Petrov in 1942 and 1943, based on the carriage of the 122 mm howitzer M1938 (M-30) and using the barrel of the 152 mm howitzer M1938 (M-10). The powerful and mobile D-1, with its wide range of ammunition, significantly increased the firepower and breakthrough abilities of Red Army tank and motor rifle formations. Several hundred D-1s were manufactured before the end of World War II.

Post World War II, the D-1 saw combat in numerous conflicts during the mid- to late 20th century. The long operational history of D-1 howitzers in national armies of numerous countries is a testimony to its qualities; the gun still remains in service in a number of post-Soviet states and some other countries. The D-1 is widely considered a valuable element of Soviet artillery.^[2][3]