| 5"/31 caliber Mark 1 Naval Gun | |
|---|---|
| Type | Naval gun |
| Place of origin | United States |
| Service history | |
| In service | 1889–1910 |
| Used by |  United States Navy |
| Wars | Spanish–American War |
| Production history | |
| Designer | Bureau of Ordnance |
| Designed | 1885 |
| Manufacturer | U.S. Naval Gun Factory |
| Produced | 1885 |
| No. built | 2 |
| Variants | Mark 1 Mod 0 and 1 |
| Specifications | |
| Mass | 6,190 lb (2,810 kg) (without breech) |
| Length | 159.97 in (4.063 m) Mark 1 Mod 1 |
| Barrel length | 153.97 in (3.911 m) bore (31 calibers) |
| Shell | 50 lb (23 kg) |
| Caliber | 5 inches (127 mm) |
| Traverse | −150° to +150° |
| Rate of fire | 6 rounds per minute |
| Muzzle velocity | 2,300 ft/s (700 m/s) |
| Maximum firing range | 16,000-yard (14,630 m) at 30° elevation |
The 5"/31 caliber gun (spoken "five-inch-thirty-one-caliber") were used in the secondary batteries of the United States Navy's "New Navy" protected cruiser Chicago and later mounted in Panther during the Spanish–American War.[1]
Design
Mark 1, Nos. 1 and 2, were 31 calibers and two of the first steel tube guns that were built entirely in the United States. They were trunnioned guns, no liners and that fired bag ammunition. After the Spanish–American War was over they were modified to Mod 1 in 1901. A liner was inserted in the breech end and the trunnions were cut off. The Mod 1 consisted of tube, jacket, and 9 hoops. After these changes the gun was able to use the same ammunition as the later Mark 2 5-inch gun.[1][2]
Naval Service
| Ship | Gun Installed | Gun Mount |
|---|---|---|
| USS Chicago (1885) | Mark 1 Mod 0: 2 × 5"/30 caliber (removed April 1898) | Mark 1: 2 × single mounting with gravity return |
| USS Panther (1889) | Mark 1 Mod 0: 2 × 5"/30 caliber (installed July 1898) | Unknown |
References
- ↑ Friedman, Norman (2011). Naval Weapons of World War One. Seaforth Publishing. p. 183. ISBN 978-1-84832-100-7.
External links
- Photo gallery of USS Chicago at NavSource Naval History
- Photo gallery of USS Panther at NavSource Naval History
- Bluejackets Manual, 1917, 4th revision: US Navy 14-inch Mark 1 gun
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