M18 57mm recoilless cannon
| M18 57mm recoilless cannon | |
|---|---|
 | |
| Kind | Recoilless cannon |
| Original development country |  The United States of America |
| The operational history | |
| Deployment period | After 1944 |
| Deployment | U.S. forces |
| Allied war, dispute | World War II The Korean War The Vietnam War |
| Specifications | |
| Weight | 21.0 kg (砲本体) 11.8 kg (tripod) |
| Full length | 1,560mm |
| Number required | Two people |
| | |
| Breech | 断隔螺式 |
| Reaction | Chromic skit-type recoilless cannon |
| Naval gun mount | M1917A1 tripod mounting |
| Discharge speed | Five /min |
| Effective range | 450m (M306A1 high-explosive projectile) |
| Maximum range | 4,429m (M306A1 high-explosive projectile) |
M18 57mm recoilless cannon (English: M18 recoilless rifle) is a recoilless cannon performed development and production of in the United States of America.
Table of contents
Summary
Although I succeeded in the development of the recoilless cannon with a Davis gun of 1906 ahead of the world, the United States was not looked back upon for a long time afterwards. On the other hand, croup company of Germany paid attention to the result and started the development of the recoilless cannon from the 1930s and completed LG40 7.5cm recoilless cannon. It was spent the actual fighting than Crete invasion operation, and this was appreciated.
されていた which the weapon which the anti-armor attack ability of an infantry unit and the other light armament corps is extremely compromised as a result of remarkable development of the armor technology between World War II and anti-armor attack ability is high enough and can carry in the middle range from this easily by an infantry unit needs.
In 1943, in the U.S. forces, 鹵獲 did LG40 in North Africa front during World War II and started the development of the recoilless cannon which referred to this promptly. The development was carried out by Legal Affairs Bureau small arms section and was completed relatively in a short term. It is a book gun to have been developed and is in this way the first recoilless cannon which U.S. forces deployed.
Structure
M18 introduced some new direction not a simple copy of LG40.
As a method of the reaction decrease homicide, I adopted a chromic skit type of the new development. This could secure high muzzle velocity than a Davis type, a croup type to emit a counterweight with firing backward that substituted a counterweight with discharge gas, and there were large power and a merit that it was. In addition, I wound a soft metal belt called established Michiko around a cannonball and succeeded in the lightweighting of the gun barrel because a rifling effect was got while in this way reducing the friction with cannonball itself and the gun barrel. The large-scale naval gun mount such as the conventional cannon became needless, and the tripod mounting of the Browning automatic pistol M1917 heavy machine gun was often used for a naval gun mount, and the use that I put it on a jeep again was in this way performed.
Operational
Production contained M18 from about 1944. I had already disappeared despite an effective anti-tank weapon at the 57mm diameter, but because a foot soldier was able to carry it because of light weight, it was useful for large-diameter direct ray heat that I could use at a rifle squadron level, and most were cast into the Pacific front by the rapid progress of the tank during the Great War.
The deployment was continued after the Great War, and 2 gates were deployed in the recoilless cannon squad of the rifle squadron in the U.S. forces, but, by the Korean War, were not able to give the T-34 tank of Northern forces an effective blow. Because I was not able to catch up with the progress of the tank in this way, it was substituted later by the dragon of the new development vs. the tank missile and retired from M67 90mm recoilless cannon developed as a large-diameter carrying type recoilless cannon.
It was given to the Japanese police reserve force, but retired from lack of power hurriedly whereas M20 75mm recoilless cannon given equally was used for the Ground Self-Defense Force after a modification for a long time.
References
- World photo press "heavy weapons Kobunsha library of the world", 1986. ISBN 4-334-70373-9。
- Ichinohe_Takao (August 25, 2001). "57mm recoilless cannon M18 [57mm Recoilless Rifle M18] (HTML) (Japanese). January 10, 2010 reading.
Allied item
This article is taken from the Japanese Wikipedia M18 57mm recoilless cannon
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