Design and configuration
A large box-like turret sits on a six-wheel tracked hull. The gun’s travel position extends beyond the front of the vehicle.1
Preparing your view.

Tracked self-propelled howitzer
AS90 is a British tracked self-propelled howitzer with an enclosed turret and a baseline 39-calibre gun. Its design prioritises protected crew operation with onboard ammunition.
AS90 Historical equipment reference photograph. It does not establish current availability or every detail of the named variant.
Airwolfhound from Hertfordshire, UK · CC BY-SA 2.0 · Wikimedia Commons · CC BY-SA 2.0 · Source ↗ · ModifiedSelf-propelled howitzer
United Kingdom
1992–present
See Operators
Yugoslav Wars (peacekeeping) Iraq War Russo-Ukrainian War
1982–1987
Vickers Shipbuilding and Engineering Limited
1992–1995
179
See Variants
45 t (44 long tons; 50 short tons)
9.9 m (32 ft 6 in) overall 7.2 m (23 ft 7 in) hull
6.022 m (19 ft 9.1 in) L/39
3.4 m (11 ft 2 in)
3 m (9 ft 10 in)
5
155 mm (6.1 in)
L31 ordnance with double-baffle muzzle brake
Split-block
2 diametrically opposed buffers & 1 recuperator 800 mm (31 in) max length
+1,244 mils (+70°) elevation -89 mils (-5°) depression
6,400 mils (360°)
3 rds/< 10 seconds – burst 6 rds/min for 3 mins – intense 2 rds/min – sustained
24.7 km (15.3 mi) standard ammunition
All-welded steel armour 17 mm (0.67 in) max thickness
BAE Systems' 155 mm L/39 (48 rounds)
7.62 mm L7 Machine Gun
Cummins VTA-903T-660 14.8 L (900 cu in) V8 diesel 490 kW (660 hp) at 2,800 rpm
Tracked
ZF Friedrichshafen LSG 2000 Automatic 4F2R
Hydropneumatic
410 mm (16 in)
750 L (160 imp gal)
370 km (230 mi)
55 km/h (34 mph)
Janes
Ukraine
Reference text from Wikipedia contributors, used under CC BY-SA 4.0.
True scale
Sourced dimensions beside a 1.75 m human reference.
The system in detail
A large box-like turret sits on a six-wheel tracked hull. The gun’s travel position extends beyond the front of the vehicle.1
The weapon uses separate projectiles and propellant charges. Navigation and gun-control equipment support laying, while replenishment determines sustained output.1
This profile concerns the fielded L/39 AS90. The proposed Braveheart L/52 upgrade must not be used to assign range or barrel dimensions to the baseline.1
Fleet transfers and retirement changes require dated country records. Technical comparisons should match ammunition and distinguish burst firing from prolonged operation.1
Points represent sourced observations, including revisions. Revisions on the same effective date are not separate inventory events. Ranges appear in the table and are not plotted as exact points.
| Observation / report period | Value | Source | Claim state |
|---|---|---|---|
| 28 Sept 2026 | 9.9 m | Wikipedia contributors | superseded |
| 28 Sept 2026 | 9.9 m | Wikipedia contributors | approved |
| 28 Sept 2026 | 9.9 m | Wikipedia contributors | superseded |
AS90 equipment records. Variants, orders and quantities are shown as reported in each inventory source; coverage is incomplete.
Army holdings of the exact named AS90 component: active, reserve operational and training units, excluding equipment in store. This is a service-scoped observation, not a national total or combat-readiness count. No parent-design, sibling-variant, heading aggregate or mounted-weapon total is inherited.