Recognition Guide Warships of the Second World War
United States Navy — Submarine

USS Blenny

Balao-class submarine diesel-electric submarine

USS Blenny
Unattributed Naval History and Heritage Command photograph — Naval History and Heritage Command: L45-28.06.02 USS Blenny (SS-324) — Public domain — Wikimedia Commons Plate The United States Navy submarine USS Blenny (SS-324) , possibly at Philadelphia, Pennsylvania

Service

  1. United States Navy as USS Blenny27 June 1944 — 7 November 1969432 days of the war
Balao-class submarine diesel-electric submarine Particulars
Name
USS Blenny
Builder
Electric Boat Company, Groton, Connecticut
Ordered
9 July 1942
Laid down
8 July 1943
Launched
9 April 1944
Commissioned
27 June 1944
Decommissioned
7 November 1969
Struck
15 August 1973
Fate
Scuttled 7 June 1989 (1989)
Status
Wreck

Specifications — As completed

Displacement, submerged
2,424 long tons (2,463 t)
Length
94.79 m (311 ft)
Beam
8.23 m (27 ft)
Draught
4.88 m (16 ft)
Speed
20.3 knots (37.5 km/h, 23.3 mph)
Range
11,000 nmi (20,372 km)
Complement
10
Main gun
127 mm (5 in)

USS Blenny was a Balao-class submarine diesel-electric submarine in service with the United States Navy. Electric Boat Company, Groton, Connecticut laid her keel on 8 July 1943. Launched on 9 April 1944, she entered service on 27 June 1944.

111 ships of the class were built. The class followed the Gato-class submarine and was succeeded by the Tench-class submarine.

The boat displaced 1,830 long tons surfaced and 2,424 long tons submerged. She measured 94.8 m (311 ft) long with a beam of 8.2 m (27 ft). Her designed speed was 20.2 knots, and she carried a complement of 10. Her main battery was of 127 mm (5 in) calibre.

She was in commission for 432 days of the Second World War. She was decommissioned on 7 November 1969. She was struck from the register on 15 August 1973.

She was scuttled on 7 June 1989, at 41°05′N 73°05′W. The wreck survives.

Written from the harvested record. Every figure above is sourced; the wording is this site's own.

Armament and machinery

This vessel is recorded in 2 configurations. Wartime refits changed armament and complement substantially, so each is kept separately rather than averaged into one set of figures. The figures above are as built.

As completed
Propulsion
  • 4 × General Motors Model 16-278A V16 diesel engines driving electrical generators
  • 2 × 126-cell Sargo batteries
  • 4 × high-speed General Electric electric motors with reduction gears
  • 2 × propellers
  • 5,400 shp (4.0 MW) surfaced
  • 2,740 shp (2.0 MW) submerged
Armament
  • 10 × 21-inch (533 mm) torpedo tubes
  • 6 forward, 4 aft
  • 24 torpedoes
  • 1 × 5-inch (127 mm) / 25 caliber deck gun
  • Bofors 40 mm and Oerlikon 20 mm cannon
Guppy IA
Displacement, surfaced
1,830 long tons (1,859 t)
Displacement, submerged
2,440 long tons (2,479 t)
Length
93.57 m (307 ft)
Beam
8.23 m (27 ft)
Draught
5.18 m (17 ft)
Speed
17.3 knots (32 km/h, 19.9 mph)
Range
17,000 nmi (31,484 km)
Complement
10
Propulsion
  • Snorkel added
  • Batteries upgraded to Sargo II
Armament
  • 10 × 21 inch (533 mm) torpedo tubes
  • (six forward, four aft)
  • all guns removed

Sister ships

86 more in the class

Sources

  • Facts harvested from USS Blenny on Wikipedia. Figures only — no wording is taken from it.
  • Photograph: Unattributed Naval History and Heritage Command photograph — Naval History and Heritage Command: L45-28.06.02 USS Blenny (SS-324) — Public domain — Wikimedia Commons