M115 howitzer

M115 203 mm howitzer
M115 203 mm howitzer
	A M115 203 mm howitzer on display at Bastrop, Texas, United States.
Type	Howitzer
Place of origin	United States
Production history
Designed	1939
Specifications
Mass	14,515 kg
Length	10.972 m
Barrel length	5.14 m
Crew	14
Shell	High explosive
Caliber	203 mm
Breech	Interrupted screw
Recoil	Hydropneumatic
Rate of fire	30 rounds/hour
Muzzle velocity	587 m/s
Effective firing range	16,800 m

The M115 203 mm howitzer, also known as the M115 8 inch howitzer, was a towed howitzer used by the United States Army. Originally designated the 8 inch Howitzer M1, it was designed during the buildup to World War II as a counterpart to the German 17 cm K18 gun. The M115 could be towed by the M35 Prime Mover gun tractor or a large truck.

The M115 owes some of its origins to the British BL 8 inch Howitzer of the First World War, using the same Welin screw for the breech. The carriage was the same as used for the US 155 mm gun, and was also adopted by the British for their 7.2 inch Mark 6 howitzer

The M115 saw service in World War II, the Korean War, and the Vietnam War. In NATO service, its main purpose was to fire nuclear rounds, which have since been discontinued. The M115 was removed from service due to its short range.

The original short barrel (25 calibres) version was mounted on a tracked chassis to become the 8 inch Self-Propelled Howitzer M110.

Operators

References

"M115 8 in (203 mm) howitzer". FAS Military Analysis Network. {{cite web}}: Unknown parameter |accessmonthday= ignored (help); Unknown parameter |accessyear= ignored (|access-date= suggested) (help)
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v t e United States artillery of World War II
Tank guns	37 mm gun M5/M6 75 mm gun M2/M3/M6 76 mm gun M1 3-inch gun M7 90 mm gun M3 90 mm gun T15 105 mm howitzer M4 105 mm gun T5 120mm gun T53 155 mm gun T7
Anti-tank guns	37 mm M3 57 mm M1 75 mm Field Gun M1897 on M2 Carriage 3 inch M5 90 mm T8 105mm T8
Field, medium and heavy guns	75 mm Field Gun M1897 on M2 Carriage 75 mm howitzer M1 105 mm howitzer M2 105 mm howitzer M3 4.5 inch gun M1 155 mm howitzer M1918 155 mm howitzer M1 155 mm gun M1918MI 155 mm gun M1/M2 "Long Tom" 8 inch howitzer M1/M2 8-inch gun M1 240 mm howitzer M1
Mortars	60 mm mortar M2 81 mm mortar M1 4.2 inch mortar M2 Little David
Other vehicle-mounted	75 mm howitzer M2/M3 75 mm gun M1897 105 mm howitzer M2 155 mm gun M1917MI 155 mm gun M2 8 inch howitzer M1/M2
Anti-aircraft guns	37 mm M1 40 mm M1 3-inch gun M1917 3-inch gun M1918 3-inch anti-aircraft gun M3 90 mm M1 120 mm M1
Coast artillery guns	3-inch gun M1903 90 mm M1 6-inch gun M1903 155 mm gun M1918MI 7"/45 caliber gun 8-inch Mk. VI 8-inch gun M1888 10-inch gun M1895 12-inch coast defense mortar 12-inch gun M1895 14-inch gun M1907 16-inch gun M1895 16-inch gun M1919 16-inch Marks 2 and 3 16-inch howitzer M1920
Railway artillery	8-inch Mk. VI 8-inch gun M1888 12-inch coast defense mortar 14-inch M1920