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

USS Ronquil

Balao-class submarine diesel-electric submarine

USS Ronquil
Unknown author — Public domain — Wikimedia Commons Plate

Service

  1. United States Navy as USS Ronquil (SS-396)22 April 1944 — 1 July 1971498 days of the war
  2. Spanish Navy as Isaac Peral (S-32)1 July 1971 — 3 April 1984
Balao-class submarine diesel-electric submarine Particulars
Name
USS Ronquil
Namesake
Ronquil
Builder
Portsmouth Naval Shipyard, Kittery, Maine
Laid down
9 September 1943
Launched
27 January 1944
Commissioned
22 April 1944
Decommissioned
May 1952
Recommissioned
16 January 1953
Struck
1 July 1971
Fate
Transferred to Spain, 1 July 1971 (1971)
Status
Unknown

Specifications — As built

Displacement, surfaced
1,526 long tons (1,550 t)
Displacement, submerged
2,391 long tons (2,429 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 Ronquil was a Balao-class submarine diesel-electric submarine of the United States Navy. The ship was named after Ronquil. Portsmouth Naval Shipyard, Kittery, Maine laid her keel on 9 September 1943. Launched on 27 January 1944, she entered service on 22 April 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 1,526 long tons surfaced and 2,391 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 served with the United States Navy as USS Ronquil (SS-396) until 1 July 1971. She then passed to the Spanish Navy, serving as Isaac Peral (S-32) from 1 July 1971. She was in commission for 498 days of the Second World War. She was decommissioned in May 1952. She recommissioned on 16 January 1953. She was struck from the register on 1 July 1971.

She was transferred on 1 July 1971.

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 built
Propulsion
  • 4 × Fairbanks-Morse Model 38D8-⅛ 10-cylinder opposed piston diesel engines driving electrical generators
  • 2 × 126-cell Sargo batteries
  • 4 × high-speed Elliott electric motors with reduction gears
  • two 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 IIA
Displacement, surfaced
1,848 long tons (1,878 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 knots (31.5 km/h, 19.6 mph)
Propulsion
  • Snorkel added
  • One diesel engine and generator removed
  • 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 Ronquil on Wikipedia. Figures only — no wording is taken from it.
  • Photograph: Unknown author — Public domain — Wikimedia Commons