Difference between revisions of "381mm / 50 Model 1934 naval gun"
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Latest revision as of 21:26, 1 July 2010
| Cannone da 381/50 Ansaldo M1934 | |
|---|---|
| 300px 381 mm/50 caliber guns firing during the Battle of Cape Spartivento. | |
| Type | Naval gun |
| Place of origin | Italy |
| Service history | |
| In service | 1940 - 1943[1] |
| Used by | 22x20px Regia Marina |
| Wars | Second World War |
| Production history | |
| Manufacturer | Gio. Ansaldo & C. |
| Specifications | |
| Weight | 102 tonnes[2] |
| Barrel length | 19 meters (750 inches)[2] |
| | |
| Shell | 885 kilograms (1,950 lb)[2] |
| Caliber | 381-millimetre (15 in)[2] |
| Muzzle velocity | 850 meters per second (2800 ft/sec)[2] |
| Maximum range | 42 kilometres (26 mi)[2] |
The 381 mm/50 Ansaldo was the main battery gun of Italy's most modern battleships: Vittorio Veneto, Littorio, and Roma. These built-up guns consisted of a liner, a cylinder over the chamber and part of the rifle bore, a full length cylinder, and a 3/4 length jacket with a hydro-pneumatically operated side-swinging Welin breech block. Each battleship carried nine guns mounted in three 1595-tonne triple turrets with maximum elevation of 35° . Time between salvos was approximately 45 seconds.[2]
Ammunition
The charge was contained in six cloth bags. Each bag contained 45 kg (100 lb) of smokeless powder. High explosive (HE) shells weighed only 774 kilograms (1,710 lb). Anticipated useful barrel life was approximately 120 effective full charges (EFC).[2]
Shell trajectory
| Range[2] | Elevation | Descent | Impact velocity |
|---|---|---|---|
| 10 km (6 miles) | 4° 24′ | 5° | 687 m/s (2250 ft/s) |
| 15 km (9 miles) | 7° 12′ | 8° 39′ | 620 m/s (2030 ft/s) |
| 20 km (12 miles) | 10° 36′ | 13° 24′ | 563 m/s (1850 ft/s) |
| 25 km (15 miles) | 14° 27′ | 19° 18′ | 524 m/s (1720 ft/s) |
| 30 km (18 miles) | 19° 12′ | 26° 6′ | 498 m/s (1630 ft/s) |
| 35 km (21 miles) | 24° 39′ | 37° 36′ | 483 m/s (1590 ft/s) |
Notes
Cite error: Invalid <references> tag;
parameter "group" is allowed only.
<references />, or <references group="..." />References
- Breyer, Siegfried (1973). Battleships and Battle Cruisers 1905-1970. Doubleday & Company. ISBN 385-0-7247-0-3.
- Campbell, John (1985). Naval Weapons of World War Two. Naval Institute Press. ISBN 0-87021-459-4.
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