AS-90

AS-90
AS-90 in Hertfordshire
TypeSelf-propelled howitzer
Place of originUnited Kingdom
Service history
In service1992–present
Used bySee Operators
WarsIraq War
Russo-Ukrainian War
Production history
Designed1982–1987
ManufacturerVickers Shipbuilding and Engineering Limited
Produced1992–1995
No. built179
VariantsSee Variants
Specifications
Mass45 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 length6.022 m (19 ft 9.1 in) L/39
Width3.4 m (11 ft 2 in)
Height3 m (9 ft 10 in)
Crew5

Calibre155 mm (6.1 in)
BarrelsL31 ordnance with double-baffle muzzle brake
BreechSplit-block
Recoil2 diametrically opposed buffers
& 1 recuperator
800 mm (31 in) max length
Elevation+1,244 mils (+70°) elevation
-89 mils (-5°) depression
Traverse6,400 mils (360°)
Rate of fire
  • 3 rds/< 10 seconds – burst
  • 6 rds/min for 3 mins – intense
  • 2 rds/min – sustained
Effective firing range24.7 km (15.3 mi) standard ammunition

ArmourAll-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
EngineCummins VTA-903T-660
14.8 L (900 cu in) V-8 diesel
490 kW (660 hp) at 2,800 rpm
DriveTracked
TransmissionZF Friedrichshafen LSG 2000
Automatic 4F2R
SuspensionHydropneumatic
Ground clearance410 mm (16 in)
Fuel capacity750 L (160 imp gal)
Operational
range
370 km (230 mi)
Maximum speed 55 km/h (34 mph)
ReferencesJanes[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).

  1. ^ Janes (28 January 2022), "AS90 (155 mm)", Janes Land Warfare Platforms: Artillery & Air Defence, Coulsdon, Surrey: Jane's Group UK Limited., retrieved 27 March 2023
  2. ^ Cite error: The named reference armyrecognition-20230623 was invoked but never defined (see the help page).