AS-90

AS-90
AS-90 in Hertfordshire
Type	Self-propelled howitzer
Place of origin	United Kingdom
Service history
In service	1992–present
Used by	See Operators
Wars	Iraq War Russo-Ukrainian War
Production history
Designed	1982–1987
Manufacturer	Vickers Shipbuilding and Engineering Limited
Produced	1992–1995
No. built	179
Variants	See Variants
Specifications
Mass	45 t (44 long tons; 50 short tons)
Length	9.9 m (32 ft 6 in) overall 7.2 m (23 ft 7 in) hull
Barrel length	6.022 m (19 ft 9.1 in) L/39
Width	3.4 m (11 ft 2 in)
Height	3 m (9 ft 10 in)
Crew	5
Calibre	155 mm (6.1 in)
Barrels	L31 ordnance with double-baffle muzzle brake
Breech	Split-block
Recoil	2 diametrically opposed buffers & 1 recuperator 800 mm (31 in) max length
Elevation	+1,244 mils (+70°) elevation -89 mils (-5°) depression
Traverse	6,400 mils (360°)
Rate of fire	3 rds/< 10 seconds – burst 6 rds/min for 3 mins – intense 2 rds/min – sustained
Effective firing range	24.7 km (15.3 mi) standard ammunition
Armour	All-welded steel armour 17 mm (0.67 in) max thickness
Main armament	BAE Systems' 155 mm L/39 (48 rounds)
Secondary armament	7.62 mm L7 Machine Gun
Engine	Cummins VTA-903T-660 14.8 L (900 cu in) V-8 diesel 490 kW (660 hp) at 2,800 rpm
Drive	Tracked
Transmission	ZF Friedrichshafen LSG 2000 Automatic 4F2R
Suspension	Hydropneumatic
Ground clearance	410 mm (16 in)
Fuel capacity	750 L (160 imp gal)
Operational range	370 km (230 mi)
Maximum speed	55 km/h (34 mph)
References	Janes[1]

The AS-90 ("Artillery System for the 1990s"), known officially as Gun Equipment 155 mm L131, is an armoured self-propelled artillery used by the British Army.

It can fire standard charges up to 24.7 km (15.3 mi) using 39-calibre long barrel and 30 km (19 mi) with 52-caliber long barrel.^[2] The maximum rate of fire is 3 rounds in 10 seconds (burst); 6 per minute for 3 minutes (intense); and 2 per minute for 60 minutes (sustained).