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Vickers Abbot (FV433)

1965 COLD WAR SELF-PROPELLED ARTILLERY

History

Since modern artillery was a proven asset on the battlefields of World War I (1914-1918), the development of mobile artillery projection systems emerged during World War II (1939-1945). concept. This has led to a new generation of vehicles that builds on the experience of the last great war and pushes a slew of these designs into the Cold War decades.

While the Americans and the Soviets were competing on their design boards, the British adopted their own self-propelled gun/gun (SPA/SPG) design as the FV433 "Abbot".

The FV433 uses the chassis of the FV430 tracked vehicle family for logistical versatility. It retains a five-wheel undercarriage with front drive sprockets and rear track idlers. The engine was located in the front left of the fuselage, forcing the driver's position in the front right.

A new closed turret casing was placed at the rear of the hull to manage the functions of the 105mm main gun.

As its classification suggests, the FV433 is intended to serve in an "indirect" fire support role, landing the projectile in an arc on a target approximately 9 miles away. In the event of an all-out war between Europe and the Soviet Union, the FV433 was supposed to play an important tactical role.

The FV433 entered service in 1965 and became part of the British and Indian Army stockpiles. The UK withdrew their stock in 1995, while India continued to use it.

Production of the vehicle was taken over by the traditional Vickers Group, whose official name (in the British Army) was "Gun Equipment 105mm L109 (Abbot)".

The vehicle has six standard operators, four of whom are physically resident in the vehicle itself, and two are trailed on the ammunition vehicle. The main crew consists of the driver, vehicle commander, gunner and loader. The loader also manages the car radio (radio).

The ammunition staff is represented by a secondary commander and a dedicated ammunition chief. The driver is the only crew member living in the actual hull - the other three in the turret. The turret can be rotated 360 degrees at -5/+70 degrees elevation/declination and is equipped with a 105mm L13A1 main gun.

The weapon is equipped with a muzzle brake with two flaps and has a central smoke exhaust.

The L13A1 is loaded with a 40 caliber 105mm projectile, which is loaded separately from the shells. Shells are usually of the high-explosive (HE) type, but smoke, lighting, markers (red or orange), and pumpkin-headed high-explosive (HESH) types have been added.

The HESH round is especially important because it is designed to dismantle solid structures and can even be used to attack enemy armor. A well-trained, disciplined and experienced crew can achieve a rate of fire of eight rounds per minute.

Secondary armament (excluding any personal weapons carried by the crew) consisted of a 7.62mm L4A4 machine gun, dispensed with 1,200 rounds of 7.62mm NATO standard ammunition. The L4A4 is a modernized form of the WWII BREN (0.303 imperial) light machine gun with a chrome-plated steel barrel for prolonged firing.

The vehicle also has smoke grenade launchers mounted on the side of the turret to provide self-protection when activated.

Power for the Abbot is provided by a Rolls-Royce K60 Mk 4G multi-fuel opposed-piston engine producing 240 hp at 3,750 rpm. This gives the vehicle a maximum road speed of 29 mph and a range of 300 miles (assuming ideal surfaces like roads).

The hull is suspended on a torsion bar suspension system that facilitates overland travel, and the vehicle has basic amphibious capabilities, propelling a water source through the movement of its own tracks (but at speeds up to 3 knots). Therefore, the ammunition carrier is likewise amphibious.

Due to the constant threat of nuclear weapons during this period, the Abbot crew is protected by a comprehensive NBC (Nuclear, Biological, Chemical) system. Ballistic protection is achieved by 12mm thick armor plates on key fairings.

In 1992, the British Army began accepting deliveries of state-of-the-art AS-90 SPA systems, officially discontinuing the FV433 Abbot.