EOC 4-inch 50 caliber
| EOC 4-inch 50 caliber | |
|---|---|
| Type | Naval gun |
| Place of origin | Great Britain |
| Service history | |
| Used by | Republic of China Greece |
| Wars | Balkan Wars World War I Greco-Turkish War World War II |
| Production history | |
| Designer | Elswick Ordnance Company |
| Designed | 1911 |
| Manufacturer | Armstrong Whitworth |
| Produced | 1911 |
| Specifications | |
| Mass | 4,816 lb (2,185 kg) |
| Barrel length | 16.7 ft (5.1 m) 50 caliber |
| Shell | Fixed QF ammunition 57.7 lb (26.2 kg) |
| Shell weight | 31 lb (14 kg) |
| Calibre | 4 inches (100 mm) |
| Breech | Horizontal sliding wedge breech |
| Rate of fire | 10-12 rpm |
| Muzzle velocity | 3,000 ft/s (910 m/s) |
The EOC 4-inch 50 caliber was a British naval gun designed by the Elswick Ordnance Company for export customers in the years before World War I that armed warships of the Republic of China and the Greek Navy. These ships served in both World War I and later World War II.