The XM800 Armored Reconnaissance Scout Vehicle, or ARSV, was an experimental scout vehicle developed by the US Army in the 1970s. It was part of a series of armored vehicles being designed by the Army to replace their existing armored personnel carriers, the M113 and

M114 M114 or M-114 may refer to: * M114 155 mm howitzer, a towed howitzer used by the United States Army * M114 armored fighting vehicle, a Vietnam War-era tracked armored fighting vehicle, used by the United States Army * M114 bomb, a U.S. 4 lb. biol ...

, with vehicles with greatly improved fighting capabilities. While the MICV-65 program focused on troop carriers, a separate requirement for a scout vehicle led to the XM800. None of the vehicles from the MICV-65 project entered production, although they provided valuable experience that was used in the M2 Bradley. Two different vehicle designs were designed for the XM800 project, Lockheed's XM800W unconventional articulated 6 × 6 wheeled armored car and FMC's XM800T tracked version. Both models initially featured the same turret with the US-built version of the

Hispano-Suiza HS.820 The HS.820 was a 20 mm caliber autocannon developed by Hispano-Suiza primarily for aircraft use, but more widely used in a series of ground-based anti-aircraft guns. After Oerlikon purchased Hispano's armaments division in 1970, the HS.820 becam ...

20 mm

autocannon An autocannon, automatic cannon or machine cannon is a fully automatic gun that is capable of rapid-firing large-caliber ( or more) armour-piercing, explosive or incendiary shells, as opposed to the smaller-caliber kinetic projectiles (bull ...

, the M139, as the primary weapon, as well as an M60-derived machine gun on a

pintle mount A weapon mount is an assembly or mechanism used to hold a weapon (typically a gun) onto a platform in order for it to function at maximum capacity. Weapon mounts can be broken down into two categories: static mounts and non-static mounts. Static ...

. The M139 had been selected for all of the MICV projects. The XM800W was later equipped with a new turret design that kept the M139 cannon, but that had an upper cover that flipped forward to form a gun shield, or rearward to close up.

References

* ''Jane's World Armoured Fighting Vehicles'', 1976. Reconnaissance vehicles of the United States Armoured cars Articulated vehicles {{mil-vehicle-stub