2A45 Sprut-B

2A45 Sprut-A
Sprut anti-tank gun
Type	Anti-tank gun
Place of origin	Soviet Union/Russia
Service history
In service	1989–present
Used by	See operators
Production history
Designer	Petrov Design Bureau
Designed	late 1980s
Manufacturer	Artillery Plant Number 9
Produced	1989–present
Variants	See models
Specifications
Weight	Transport: 6,500 kg (14,300 lb) Self-propelled: 6,800 kg (15,000 lb) Firing: 6,575 kg (14,495 lb)
Length	Transport: 7.12 m (23 ft 4 in) Self-propelled: 6.79 m (22 ft 3 in)
Barrel length	Bore: 51 calibres Bore axis: 0.925 m (3 ft 0.4 in)
Width	2.66 m (8 ft 9 in)
Height	Transport: 2.09 m (6 ft 10 in) Self-propelled: 2.35 m (7 ft 9 in)
Crew	7
Caliber	125 mm (4.9 in)
Recoil	hydropneumatic
Carriage	tripod
Elevation	-6° to 25°
Traverse	360°
Rate of fire	6-8 rpm
Effective firing range	2,000 m (2,200 yd) (APFSDS) 5,000 m (5,500 yd) (9M119 Svir ATGM) 12,200 m (13,300 yd) (HE)
Operational range	50 km (55,000 yd) (in APU mode)
Speed	14 km/h (8.7 mph) (in APU mode)

2A45 and 2A45M are the respective GRAU designations of the Sprut-A and Sprut-B (Russian for Octopus or Kraken) Soviet smoothbore 125 mm anti-tank gun.

The 2A45M was created in the late 1980s by the Petrov Design Bureau at Artillery Plant Number 9 (OKB-9), which was also responsible for the 122 mm howitzer 2A18 (D-30).

A feature of the Sprut-B is its integrated engine, which can propel the gun on relatively flat surfaces (up to 15 degrees slope) and at 14 km/h on roads. This gives the gun a measure of mobility on the battlefield. It takes two minutes to go from firing position to travelling position and 90 seconds to go from travelling position to firing position. Such guns are known in Russian as "self-moving" (самодвижущиеся) as opposed to self-propelled (самоходные), and outside of battle it is towed by an MT-LB.

The gun features a crew of seven. An OP4M-48A direct fire sight is used the day, while a 1PN53-1 night vision sight is used at night. For indirect fire, 2Ts33 iron sights are used, along with a PG-1m panoramic sight. The gun can reliably engage targets two metres high at a distance of 2000 metres.

The barrel features a thermal sleeve to prevent temperature changes affecting the accuracy. The gun uses the same semi-fixed ammunition as the T-64, T-72, T-80 and T-90 tanks.

With the addition of the 9S53 laser fire-control system, the gun can fire laser guided projectiles such as the 9M119 Svir or 9K120 Refleks.

The gun uses the same ammunition as the D-81 series of guns used on the T-64, T-72, T-80 and T-90 tanks.

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Wikipedia