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Armoured personnel carriers (APCs) are light armoured fighting vehicles for the transport of infantry. They usually have only a machine gun although variants carry recoilless rifles, anti-tank guided missiles (ATGMs), or mortars. They are not really designed to take part in a direct-fire battle, but to carry the troops to the battlefield safe from shrapnel and ambush. They may have wheels or tracks. Examples include the American M113 (tracked), the British FV 432 (tracked), the French VAB (wheeled), the German Boxer MRAV (wheeled) and the Soviet BTR (wheeled).
History
During World War I, when the tank was developed, the British Mark V tank was designed with a small passenger compartment to carry troops. By some definitions this can be considered the first armoured personnel carrier. The first specialised APC was the Mark IX of 1918.
During World War II, half-tracks such as the American M3 and the German SdKfz 251 played a role similar to the armoured personnel carriers that were developed later on. Another forerunner to the APC during this time was the British Universal Carrier. Often, APCs were simply armoured cars with the capacity for carrying troops, but they evolved into purpose-built vehicles to suit the demands of motorised warfare from World War II.
In 1944, the commander of 2nd Canadian Corps, General Guy Simonds, ordered the conversion of 72 US-produced M7 Priest self-propelled howitzers to personnel carriers. They were due for replacement anyway, as the howitzer barrels were worn out. The howitzer was removed, and the resulting hole was plugged with whatever steel was available. The vehicle was called Kangaroo, after the workshop which did the conversion. Later in the war Canadian-built Ram tanks were used as a basis for the majority of conversions, as they were then obsolete and the original Kangaroos were worn out.
After the war different specialised APCs were developed. The United States developed a series of tracked vehicles, culminating in the M113 "box on tracks", of which 80,000 were made. The Soviet Union developed the wartime BTR-40 into a series of 8-wheeled APC.
At the end of the 1980s, Israel converted captured T-55 tanks to APCs, reminiscent of WWII conversions. The result is one of the best protected APCs in the world, called IDF Achzarit.
Technology
Most armoured personnel carriers use a diesel engine comparable to that used in a large truck or in a typical city bus (APCs are often known to troops as 'Battle Taxis' or 'Battle Buses'). The M113 for instance used the same engine as the standard General Motors urban bus. A single M113 moving at top speed generates as much noise as a General Motors urban bus moving at top speed. However, the typical armoured personnel carrier can carry only six to ten soldiers while a typical urban bus can carry thirty to fifty seated passengers, and hundreds when standing passengers are included.
Most APCs are amphibious. Usually tracked APCs are powered by their tracks in the water, and wheeled APCs have propellors or water jets. Preparations for amphibious operations usually comprises checking the integrity of the hull and folding down a trim wane in front. Swimming required fairly still waters, and good entry and exit points. Speed in water is typically 3-6 km/h.
Armour on APCs are usually simple steel or aluminium armour, sufficient for protection against small arms fire and most shell fragments. Just about any type of anti-tank weapon can defeat the armour of an APC.
The usual armament for an APC is a 12.7 (.50) or 14.5 mm heavy machine gun. This is mounted on top of the vehicle, either on a simple pintle mount, sometimes with a gun shield, or a small turret. Sometimes an automatic grenade launcher is used instead.
The APC in action
apc are crap air strikes are the best screw troops bomb the iraqi bastard kill'em all