BAP Pacocha (SS-48)

History
Peru
Name	Pacocha
Laid down	2 December 1943
Launched	6 March 1944
Acquired	31 July 1974, from the United States Navy
Commissioned	28 May 1974
Identification	SS-48
Fate	Rammed and sunk by a fishing trawler, 26 August 1988
General characteristics
Class and type	Balao-class submarine
Displacement	1,830 tons (1,859 t) surfaced; 2,440 tons (2,479 t) submerged;
Length	307 ft 7 in (93.75 m)
Beam	27 ft 4 in (8.33 m)
Draft	17 ft (5.2 m)
Propulsion	4 × Fairbanks-Morse Model 38D8-⅛ 10 cylinder opposed piston diesel engines equipped with a snorkel, driving electrical generators; ; 2 × 126 cell Sargo II batteries; 4 × high-speed Elliott electric motors with reduction gears; two propellers;
Speed	Surfaced:; 17.3 knots (32.0 km/h) maximum; 12.5 knots (23.2 km/h) cruising; Submerged:; 15.0 knots (27.8 km/h) for 1/2-hour; 7.5 knots (13.9 km/h) snorkeling; 3.0 knots (5.6 km/h) cruising;
Range	17,000 nm (28,000 km) surfaced at 11 knots (20 km/h)
Endurance	36 hours at 3 knots (5.6 km/h) submerged
Test depth	400 ft (120 m)
Complement	10 officers; 5 petty officers; 64–69 enlisted men;
Armament	10 × 21 in (533 mm) torpedo tubes; (six forward, four aft);

BAP Pacocha (SS-48) was a submarine of the Marina de Guerra del Perú (Peruvian Navy) named for the 1877 Battle of Pacocha, in which the Peruvian ironclad Huascar clashed with the Royal Navy. Formerly USS Atule (SS-403), a Balao-class submarine with a GUPPY IA upgrade, she had been sold to Peru and commissioned on 28 May 1974. She was rammed and sunk by a fishing trawler on 26 August 1988.

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