USS Porpoise (SS-7)

USS Porpoise (right) and sister-ship USS Shark at New York, 1905
History
United States
NameUSS Porpoise
Builder
Laid down13 December 1900
Launched23 September 1901
Commissioned19 September 1903
Decommissioned12 December 1919
Stricken16 January 1922
FateSunk as a target
General characteristics
Class & typePlunger-class submarine
Displacement107 long tons (109 t)
Length64 ft (20 m)
Beam12 ft (3.7 m)
Draft11 ft (3.4 m)
Speed
  • 8 kn (9.2 mph; 15 km/h) surfaced
  • 7 kn (8.1 mph; 13 km/h) submerged
Test depth33–66 ft (10–20 m)
Complement7
Armament1 × 18 inch (450 mm) torpedo tube

The third USS Porpoise (SS-7) was an early Plunger-class submarine in the service of the United States Navy, later renamed as A-6.

She was laid down on 13 December 1900 in Elizabeth, New Jersey at the Crescent Shipyard under the direction of shipyard superintendent, Arthur Leopold Busch. This craft was launched on 23 September 1901, and commissioned at the Holland Torpedo Boatyard at New Suffolk, New York on 19 September 1903.