USS Ronquil

	USS Ronquil (SS-396) entering Pearl Harbor, c. 1944-45.
History
United States
Name	USS Ronquil (SS-396)
Namesake	Ronquil
Builder	Portsmouth Naval Shipyard, Kittery, Maine
Laid down	9 September 1943
Launched	27 January 1944
Sponsored by	Mrs. C. M. Elder
Commissioned	22 April 1944
Decommissioned	May 1952
Recommissioned	16 January 1953
Decommissioned	1 July 1971
Stricken	1 July 1971
Fate	Transferred to Spain, 1 July 1971
Spain
Name	Isaac Peral (S-32)
Namesake	Isaac Peral (1851–1895), Spanish naval officer
Acquired	1 July 1971
Decommissioned	3 April 1984
Honors and; awards	Six battle stars
General characteristics
Class & type	Balao-class diesel-electric submarine
Displacement	1,526 tons (1,550 t) surfaced; 2,391 tons (2,429 t) submerged;
Length	311 ft 6 in (94.95 m)
Beam	27 ft 3 in (8.31 m)
Draft	16 ft 10 in (5.13 m) maximum
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;
Speed	20.25 knots (38 km/h) surfaced; 8.75 knots (16 km/h) submerged;
Range	11,000 nautical miles (20,000 km) surfaced at 10 knots (19 km/h)
Endurance	48 hours at 2 knots (3.7 km/h) submerged; 75 days on patrol;
Test depth	400 ft (120 m)
Complement	10 officers, 70–71 enlisted
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;
General characteristics (Guppy IIA)
Class & type	none
Displacement	1,848 tons (1,878 t) surfaced; 2,440 tons (2,479 t) submerged;
Length	307 ft (93.6 m)
Beam	27 ft 4 in (8.3 m)
Draft	17 ft (5.2 m)
Propulsion	Snorkel added; One diesel engine and generator removed; Batteries upgraded to Sargo II;
Speed	Surfaced:; 17.0 knots (19.6 mph; 31.5 km/h) maximum; 13.5 knots (15.5 mph; 25.0 km/h) cruising; Submerged:; 14.1 knots (16.2 mph; 26.1 km/h) for ½ hour; 8.0 knots (9.2 mph; 14.8 km/h) snorkeling; 3.0 knots (3.5 mph; 5.6 km/h) cruising;
Armament	10 × 21 inch (533 mm) torpedo tubes; (six forward, four aft); all guns removed;

USS Ronquil (SS-396), a Balao-class submarine, was the only ship of the United States Navy named after the ronquil, a spiny-finned fish found along the northwest coast of North America. It has a single dorsal fin and a large mouth and resembles the tropical jawfish.