M110 howitzer

8" M110 self-propelled howitzer
M110 203 mm self-propelled howitzer of the Royal Netherlands Army
Type	Self-propelled artillery
Place of origin	United States
Service history
Wars	Vietnam War Yom Kippur War Iran–Iraq War 1982 Lebanon War Kurdish–Turkish conflict (1978–present) Gulf War
Production history
Manufacturer	General Motors (transmission)[1]
Specifications
Mass	31.2 short tons (28.3 t; 27.9 long tons)
Length	35 ft 5 in (10.8 m)
Width	10 ft 2 in (3.1 m)
Height	10 ft 2 in (3.1 m)
Crew	13 (driver, 2 gunners, 2 loaders, (8 support crew–other vehicle))
Caliber	203 mm (8.0 in)
Barrels	1
Effective firing range	16.8–25 km (10.4–15.5 mi) RAP 30 km (19 mi)
Armor	.51 in (13 mm)
Main armament	8 in (203 mm) M201A1 howitzer
Secondary armament	none
Engine	Detroit Diesel 8V71T, 8-cylinder, 2-stroke, turbocharged diesel 405 hp (302 kW)
Suspension	Torsion bar
Maximum speed	30 mph (54.7 km/h)

The 8-inch (203 mm) M110 self-propelled howitzer is an American self-propelled artillery system consisting of an M115 203 mm howitzer installed on a purpose-built chassis. Before its retirement from US service, it was the largest available self-propelled howitzer in the United States Army's inventory; it continues in service with the armed forces of other countries, to which it was exported. Missions include general support, counter-battery fire, and suppression of enemy air defense systems.