Ho-103 machine gun
| Ho-103 machine gun | |
|---|---|
 12.7 mm Ho-103 machine gun on display at the Steven F. Udvar-Hazy Center | |
| Type | Machine Gun |
| Place of origin | Empire of Japan |
| Service history | |
| Used by | Empire of Japan |
| Wars | World War II |
| Specifications | |
| Weight | 23 kilograms (50.7 lb) |
|
| |
| Cartridge | 12.7x81mmSR Breda[1] |
| Action | Recoil operation |
| Rate of fire |
900 RPM 400 RPM (synchronized) |
| Muzzle velocity | 780 m/s (2,600 ft/s) |
| Feed system | Belt |
| Sights | Iron |
The 12.7mm Type 1 (1941) was a Japanese aircraft machine gun widely used during World War II and also known as the Ho-103.[2] It was based on the American .50-caliber M1921 aircraft Browning machine gun.[1]
The Ho-103 achieved a higher rate of fire by using a smaller, lower velocity Breda (Vickers) cartridge, intermediate in length between the WWII German 13 mm calibre MG 131's 64mm length cartridge, and the long 99mm cartridge of the veteran American M2 Browning .50 calibre gun. Because of this, the gun was frequently loaded with explosive or incendiary ammunition in an attempt to increase terminal effects on aircraft.
Variants
The Type 1 consists of two variants. The Ho-103 is a fixed machine gun while the Ho-104 is a movable machine gun.[1]
Design
The 12.7x81SR allowed the Type 1 to fire at a rate of 900 RPM, but it'll fire at a rate of 400 RPM if synchronized.[1]
Reference
Bibliography
- Rottman, Gordon L. (2010). Browning .50-caliber Machine Guns. Oxford, UK: Osprey Publishing. ISBN 978-1849083300.