The AS90 is a British self-propelled howitzer developed to replace the older FV433 Abbot SPG and the M109 in service with the British Army. The system was designed and produced by Vickers Shipbuilding and Engineering Ltd (VSEL), now part of BAE Systems. Introduced into service in the early 1990s, the AS90 has been a crucial component of the British Army’s artillery capabilities, providing a modern and highly effective indirect fire support system.
AS90 Design and Features
The AS90 features a fully enclosed turret mounted on a tracked chassis, providing the crew with protection against small arms fire and shell splinters. The system is operated by a crew of five: commander, driver, gunner, and two loaders. The main armament is a 155mm L31 gun with a 39-caliber barrel, though some units have been upgraded to a 52-caliber version to increase range.
The AS90’s turret is fully traversable through 360 degrees, and the gun can be elevated from -5 to +70 degrees. It is equipped with an automatic loading system, which allows for a high rate of fire, with a maximum sustained rate of six rounds per minute. The vehicle can carry up to 48 rounds of 155mm ammunition, providing it with significant firepower for sustained operations.
AS90 Performance and Capabilities
The AS90 is powered by a 660 hp Perkins CV12 diesel engine, enabling a maximum road speed of 55 km/h and an operational range of approximately 420 km. The vehicle’s robust suspension system and track design provide it with excellent cross-country mobility, allowing it to support infantry and armored units in various terrains.
In terms of firepower, the AS90 can engage targets at ranges of up to 24.7 km with standard ammunition and over 30 km with extended-range projectiles. The artillery system is also compatible with NATO-standard 155mm ammunition, providing flexibility in operational deployment.
Operational Use of the AS90 Artillery System
The AS90 has been deployed in various military exercises and operations, demonstrating its effectiveness in providing indirect fire support to ground forces. It is primarily used in conjunction with modern fire control systems and battlefield management systems, enhancing its accuracy and coordination with other artillery and ground units.
The system’s modular design allows for upgrades and modernization, including the integration of advanced targeting and navigation systems, as well as increased automation of loading and firing processes.
According to UK Ministry of Defence (MoD) data reported in 2016, the British Army operates 89 AS90 systems, which form the backbone of its self-propelled artillery capability. These units are distributed among key artillery regiments, ensuring readiness for a range of operational scenarios. Efforts are ongoing to maintain and upgrade these systems to extend their service life and improve operational performance.
