USS Sea Poacher

History
United States
Name	USS Sea Poacher
Builder	Portsmouth Naval Shipyard, Kittery, Maine
Laid down	23 February 1944
Launched	20 May 1944
Commissioned	31 July 1944
Decommissioned	15 November 1969
Stricken	15 August 1973
Identification	SS-406
Fate	Transferred to Peru, 1 July 1974
Peru
Name	Initially BAP Pabellón de Pica, changed a few weeks later to La Pedrera
Acquired	1 July 1974
Decommissioned	1995
Identification	S49
General characteristics
Class and type	Balao-class diesel-electric submarine
Displacement	1,526 tons (1,550 t) surfaced; 2,401 tons (2,440 t) submerged;
Length	311 ft 8 in (95.00 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 IA)
Class and type	none
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	Snorkel added; Batteries upgraded to Sargo II;
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 ½ hour; 7.5 knots (13.9 km/h) snorkeling; 3.0 knots (5.6 km/h) cruising;
Range	17,000 nautical miles (31,000 km) surfaced at 11 knots (20 km/h)
Endurance	36 hours at 3 knots (6 km/h) submerged
Complement	10 officers; 5 petty officers; 64–69 enlisted men;
Armament	10 × 21 inch (533 mm) torpedo tubes; (six forward, four aft); all guns removed;

USS Sea Poacher (SS/AGSS-406), a Balao-class submarine, was a vessel of the United States Navy named for the sea poacher, a slender, mailed fish of the North Atlantic.

Sea Poacher (SS-406) was built by the Portsmouth Navy Yard in Kittery, Maine; launched on 20 May 1944; sponsored by Mrs. J. H. Spiller, wife of Commander Spiller, hull superintendent at the Navy Yard; and commissioned on 31 July 1944.

^ ^a ^b ^c ^d ^e ^f ^g Friedman, Norman (1995). U.S. Submarines Through 1945: An Illustrated Design History. Annapolis, Maryland: United States Naval Institute. pp. 285–304. ISBN 1-55750-263-3.
^ ^a ^b ^c ^d ^e ^f Bauer, K. Jack; Roberts, Stephen S. (1991). Register of Ships of the U.S. Navy, 1775-1990: Major Combatants. Westport, Connecticut: Greenwood Press. pp. 275–280. ISBN 0-313-26202-0.
^ ^a ^b ^c ^d ^e Bauer, K. Jack; Roberts, Stephen S. (1991). Register of Ships of the U.S. Navy, 1775–1990: Major Combatants. Westport, Connecticut: Greenwood Press. pp. 275–280. ISBN 978-0-313-26202-9.
^ U.S. Submarines Through 1945 pp. 261–263
^ ^a ^b ^c U.S. Submarines Through 1945 pp. 305–311
^ ^a ^b ^c ^d ^e ^f U.S. Submarines Through 1945 pp. 305-311
^ ^a ^b ^c ^d ^e ^f Friedman, Norman (1994). U.S. Submarines Since 1945: An Illustrated Design History. Annapolis, Maryland: United States Naval Institute. pp. 11–43. ISBN 1-55750-260-9.
^ ^a ^b ^c ^d ^e ^f U.S. Submarines Since 1945 pp. 242

[FriedmanSubs1-dates-1] ^ ^a ^b ^c ^d ^e ^f ^g Friedman, Norman (1995). U.S. Submarines Through 1945: An Illustrated Design History. Annapolis, Maryland: United States Naval Institute. pp. 285–304. ISBN 1-55750-263-3.

[Register-2] ^ ^a ^b ^c ^d ^e ^f Bauer, K. Jack; Roberts, Stephen S. (1991). Register of Ships of the U.S. Navy, 1775-1990: Major Combatants. Westport, Connecticut: Greenwood Press. pp. 275–280. ISBN 0-313-26202-0.

[Register_275–280-3] Bauer, K. Jack; Roberts, Stephen S. (1991). Register of Ships of the U.S. Navy, 1775–1990: Major Combatants. Westport, Connecticut: Greenwood Press. pp. 275–280. ISBN 978-0-313-26202-9.

[FriedmanSubs1-engines_261–263-4] U.S. Submarines Through 1945 pp. 261–263

[FriedmanSubs1-specs_305–311-5] U.S. Submarines Through 1945 pp. 305–311

[FriedmanSubs1-specs-6] ^ ^a ^b ^c ^d ^e ^f U.S. Submarines Through 1945 pp. 305-311

[FriedmanSubs2-chap2-7] ^ ^a ^b ^c ^d ^e ^f Friedman, Norman (1994). U.S. Submarines Since 1945: An Illustrated Design History. Annapolis, Maryland: United States Naval Institute. pp. 11–43. ISBN 1-55750-260-9.

[FriedmanSubs2-specs-8] ^ ^a ^b ^c ^d ^e ^f U.S. Submarines Since 1945 pp. 242

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History

United States
Name	USS Sea Poacher
Builder	Portsmouth Naval Shipyard, Kittery, Maine^[1]
Laid down	23 February 1944^[1]
Launched	20 May 1944^[1]
Commissioned	31 July 1944^[1]
Decommissioned	15 November 1969^[1]
Stricken	15 August 1973^[1]
Identification	SS-406
Fate	Transferred to Peru, 1 July 1974^[1]
Peru
Name	Initially BAP Pabellón de Pica, changed a few weeks later to La Pedrera
Acquired	1 July 1974
Decommissioned	1995
Identification	S49
General characteristics
Class and type	Balao-class diesel-electric submarine^[2]
Displacement	1,526 tons (1,550 t) surfaced^[2] 2,401 tons (2,440 t) submerged^[2]
Length	311 ft 8 in (95.00 m)^[2]
Beam	27 ft 3 in (8.31 m)^[2]
Draft	16 ft 10 in (5.13 m) maximum^[2]
Propulsion	4 × Fairbanks-Morse Model 38D8-⅛ 10-cylinder opposed piston diesel engines driving electrical generators^[3]^[4] 2 × 126-cell Sargo batteries^[5] 4 × high-speed Elliott electric motors with reduction gears^[3] two propellers ^[3] 5,400 shp (4.0 MW) surfaced^[3] 2,740 shp (2.0 MW) submerged^[3]
Speed	20.25 knots (38 km/h) surfaced^[6] 8.75 knots (16 km/h) submerged^[6]
Range	11,000 nautical miles (20,000 km) surfaced at 10 knots (19 km/h)^[6]
Endurance	48 hours at 2 knots (3.7 km/h) submerged^[6] 75 days on patrol
Test depth	400 ft (120 m)^[6]
Complement	10 officers, 70–71 enlisted^[6]
Armament	10 × 21-inch (533 mm) torpedo tubes 6 forward, 4 aft 24 torpedoes^[5] 1 × 5-inch (127 mm) / 25 caliber deck gun^[5] Bofors 40 mm and Oerlikon 20 mm cannon
General characteristics (Guppy IA)
Class and type	none
Displacement	1,830 tons (1,859 t) surfaced^[7] 2,440 tons (2,479 t) submerged^[7]
Length	307 ft 7 in (93.75 m)^[8]
Beam	27 ft 4 in (8.33 m)^[8]
Draft	17 ft (5.2 m)^[8]
Propulsion	Snorkel added^[7] Batteries upgraded to Sargo II^[7]
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 ½ hour 7.5 knots (13.9 km/h) snorkeling 3.0 knots (5.6 km/h) cruising^[7]
Range	17,000 nautical miles (31,000 km) surfaced at 11 knots (20 km/h)^[8]
Endurance	36 hours at 3 knots (6 km/h) submerged^[8]
Complement	10 officers 5 petty officers 64–69 enlisted men
Armament	10 × 21 inch (533 mm) torpedo tubes (six forward, four aft)^[8] all guns removed^[7]