5-inch/50-caliber gun
< 5-inch
Chattanooga, 5"/50 caliber deck gun, probably port side forward. | |
| Type | |
| Place of origin | United States |
| Service history | |
| In service | 1904 |
| Used by | United States Navy |
| Wars | |
| Production history | |
| Designer | Bureau of Ordnance |
| Designed | 1900 |
| Manufacturer | U.S. Naval Gun Factory |
| No. built |
|
| Variants | Mark 5 Mods 0–3, Mark 6 Mods 0–2 |
| Specifications | |
| Mass |
|
| Length | Marks 5 and 6: 255.65 in (6,494 mm) |
| Barrel length | Marks 5 and 6: 250 in (6,400 mm) bore (50 calibers) |
| Shell |
|
| Caliber | 5 in (127 mm) |
| Elevation |
|
| Traverse | −150° to +150° |
| Rate of fire | 6–8 rounds per minute |
| Muzzle velocity |
|
| Maximum firing range | 19,000 yd (17,000 m) at 25.3° elevation |
The 5"/50 caliber gun (spoken "five-inch-fifty-caliber") was the first long barrel 5-inch (127 mm) gun of the United States Navy and was used in the secondary batteries of the early Delaware-class dreadnought battleships, various protected cruisers, and scout cruisers. They were also refitted in the secondary batteries of the armored cruiser New York and the New Orleans-class protected cruisers. They were later used on cargo ships, store ships and unclassified auxiliaries during World War II as well as in emergency coastal defense batteries.