BMD-4

BMD-4
A BMD-4 "Bakhcha-U" at the 2008 Moscow Victory Day Parade
Type	Infantry fighting vehicle
Place of origin	Russia
Service history
In service	2004–present
Used by	Russia
Production history
Designed	1990s
Manufacturer	Volgograd tractor factory
Produced	2004–present
Variants	See Variants
Specifications
Weight	13.6 t (15.0 short tons; 13.4 long tons)
Length	6.36 m (20 ft 10 in) (gun forward) 6.1 m (20 ft 0 in) (hull)
Width	3.11 m (10 ft 2 in)
Height	2.45 m (8 ft 0 in)
Crew	3
Passengers	5
Armor	Turret: Steel Hull: Aluminum alloy
Main armament	100 mm 2A70 rifled cannon gun 30 mm 2A72 autocannon
Secondary armament	7.62 mm PKT coaxial machine gun 5.45 mm RPK machine gun Konkurs ATGM
Engine	BMD-4: 2V-06-2 water-cooled diesel engine BMD-4M: UTD-29 multi-fuel diesel engine BMD-4: 450 hp (331 kW) BMD-4M: 500 hp (368 kW)
Power/weight	BMD-4: 33.1 hp/tonne (24.3 kW/tonne) BMD-4M: 37.0 hp/tonne (27.2 kW/tonne)
Suspension	Hydropneumatic suspension
Operational range	500 km (310 mi) (on paved roads)
Speed	70 km/h (43 mph) (on paved roads) 45 km/h (28 mph) (on rough terrain) 10 km/h (6.2 mph) (in water)

The BMD-4 (Russian: "Боевая Машина Десанта-4"; Boyevaya Mashina Desanta-4 literally "Combat Vehicle of the Airborne") is an amphibious infantry fighting vehicle (IFV) originating from post-Cold War Russia. Originally designated as the BMD-3M, the chassis of the BMD-4 is the same as that of the BMD-3, because it was developed on the same basis. This armored fighting vehicle is one of the lightest and one of the most heavily armed in its class, possessing a substantial amount of firepower in comparison to its counterparts. The vehicle was designed to transport Russian Airborne Troops (VDV); increasing its mobility, armament, and protection on the battlefield.

Many components of the vehicle, such as the ergonomics and positioning of the passengers, remain relatively unchanged. Primary differences between the BMD-4 and its predecessors lie in its armament. The vehicle is fitted with the Bakhcha-U turret which consists of: a 100 mm 2A70 low-pressure rifled gun, a 30 mm 2A72 coaxial autocannon, and a 7.62 mm PKT coaxial machine gun. The 2A70 rifled cannon is capable of firing high explosive fragmentation rounds and laser guided anti-tank missiles. It also features secondary weapons designed to engage and destroy enemy infantry and armored fighting vehicles. The automated fire control system of the vehicle is advanced with new features that simplify the use of the vehicle's armament by the gunner and commander.

The vehicle is designed by the Volgograd tractor factory and the armament was developed by the KBP Instrument Design Bureau unitary enterprise located in Tula. Kurganmashzavod is the official manufacturer of the vehicle. The only operator of the BMD-4 is Russia where it entered service in late 2004 and has been produced ever since then. In 2008, a modernized version, designated as the BMD-4M, was introduced with significant contributions from Kurganmashzavod; the designer of the BMP.