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NavSource Online: Submarine Photo Archive


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Trepang (SS-412) (AGSS-412)

Radio Call Sign: November - Kilo - Sierra - Zulu

Awards, Citations and Campaign Ribbons

Precedence of awards is left to right
Navy Unit Citation - Asiatic-Pacific Campaign Medal (5) - World War II Victory Medal

Balao Class Submarine: Laid down, 25 June 1943, at Mare Island Navy Yard, Vallejo, CA..; Launched, 23 March 1944; Commissioned USS Trepang (SS-412), 22 May 1944; Decommissioned, 27 June 1946, at Mare Island Navy Yard; Laid up in the Pacific Reserve Fleet, Mare Island Group; Reclassified Auxiliary Research Submarine (AGSS-412), 11 June 1962; Struck from the Naval Register, 30 June 1967; Final Disposition, sunk as a target, 16 September 1969 by, Henderson (DD-785) and Fechteler (DD-870), during "Strike Ex 4-69." Trepang was awarded the Navy Unit Commendation and earned five battle stars for World War II service.

Specifications: Displacement, Surfaced 1,526 t., Submerged 2,391 t.; Length 311' 8"; Beam 27' 3"; Draft 15' 3"; Speed, Surfaced 20.25 kts, Submerged 8.75 kts; Cruising Range, 11,000 miles surfaced at 10 kts; Submerged Endurance, 48 hours at 2 kts; Operating Depth, 400 ft; Complement 6 Officers 60 Enlisted; Armament, ten 21" torpedo tubes, six forward, four aft, 24 torpedoes, one 5"/25 deck gun, one single 40mm gun mount, one single 20mm gun mount, two .50 cal. machine guns; Patrol Endurance 75 days; Propulsion, diesel-electric reduction gear, Fairbanks Morse diesel engines, 5,400 HP, Fuel Capacity, 116,000 gal., four Elliot Motor Co. electric main motors with 2,740 shp, two 126-cell main storage batteries, two propellers.
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Trepang190kThe Trepang (SS-412) on ways #3 at Mare Island Navy Yard on 6 July 1943. Sterns of the Ashland (LSD-1) and the Copahee (CVE-12) are on the right.
Mare Island Navy Yard photo 4923-43 series, courtesy of Darryl L. Baker.
Spadefish & Trepang 229k Middle top right of the photo shows the Spadefish (SS-411) & Trepang (SS-412) under construction at Mare Island Navy Yard, 11 July 1943. The carrier under construction is the Independence (CV-22).
US Navy photo # 5083-43, courtesy of Darryl Baker.
Trepang250k Aft plan view of the Long (DMS-12) at Mare Island Navy Yard on 30 Oct 1943 at the conclusion of her overhaul at the yard which started on 27 Sep 1943. The Trepang (SS-412) is on the building ways behind the Long .
Mare Island Navy Yard photo # 7374-43, courtesy of Darryl L. Baker.
Trepang221k After plan view of the Hogan (DMS-6) at Mare Island on 11 Jan 1944. The Trepang (SS-412) is on her building ways in the background.
US Navy photo # 296-44, courtesy of Darryl L. Baker.
Trepang180k Forward plan view of the Hogan (DMS-6) at Mare Island on 11 Jan 1944. The Trepang (SS-412) is on her building ways in the background.
US Navy photo # 297-44, courtesy of Darryl L. Baker.
Trepang151k Mrs. Roy M. Davenport (Sponsor), left and Mrs. Richard Garvey (Matron of Honor) are seen at the bow of the Trepang (SS-412) prior to her launching at Mare Island on 23 March 1944.
US Navy photo # 1854-44, courtesy of Darryl L. Baker.
Trepang81kTrepang (SS-412) launching, 23 March 1944, at Mare Island Navy Yard, Vallejo, CA. The officer on the left is LCDR Roy M. Davenport (PCO of Trepang); his wife is doing the christening honors. The woman on the far right is Mrs. Richard Garvey (Matron of Honor).
US Navy photo # 1852-44, courtesy of Darryl L. Baker.
Trepang90k The Trepang (SS-412) shortly after her launching at Mare Island on 23 March 1944.
US Navy photo # 1853-44, courtesy of Darryl L. Baker.
Trepang219k Commissioning party of the Trepang (SS-412) at Mare Island on 22 May 1944. Seated left to right: LCDR Roy M. Davenport, CO; Mrs. Roy M. Davenport (Sponsor), Mrs. Loraine Garvey (Maid of Honor) and Lt Richard S. Garvey, XO. Ship's officer are standing in the rear.
US Navy photo # 3063-44, courtesy of Darryl L. Baker.
Trepang222k Photo of the commissioning ceremony aboard Trepang (SS-412) at Mare Island on 22 May 1944. LCDR Roy M. Davenport is in the center of the photo.
US Navy photo # 3068-44, courtesy of Darryl L. Baker.
Trepang195kPhoto of the Commissioning plaque of the Trepang (SS-412) display at the Vallejo Naval & Historical Museum, October 2004. Courtesy of Darryl L. Baker.
Trepang188kPhoto of the Commissioning plaque and the Christening bottle holder used in the launching of the Trepang (SS-412) display at the Vallejo Naval & Historical Museum, October 2004. Courtesy of Darryl L. Baker.
Trepang223k Aft plan view of Trepang (SS-412) docked in ARD 21 at Mare Island on 3 Jul 1944. Good view of the stern tubes and propellers.
US Navy photo # 4143-44, courtesy of Darryl L. Baker.
Trepang275k Forward plan view of Trepang (SS-412) docked in ARD 21 at Mare Island on 3 Jul 1944.
US Navy photo # 4144-44, courtesy of Darryl L. Baker.
Spot & Trepang199k Bow view of the Spot (SS-413) at her outfitting berth at Mare Island on 3 July 1944. The Trepang (SS-412) is in the background returning from bay trials. USN photo # 4142-44, courtesy of Darryl Baker.
Trepang171k Bow on view of Trepang (SS-412) departing Mare Island and being accompanied by a escort vessel, on 12 July 1944.
US Navy photo # 4478-44, courtesy of Darryl L. Baker.
Trepang138k Broadside view of Trepang (SS-412) off Mare Island on 12 July 1944.
US Navy photo # 4480-44, courtesy of Darryl L. Baker.
Trepang62kTrepang (SS-412) underway off Mare Island Navy Yard, Vallejo, CA., 12 July 1944.
US Navy photo (Mare Island Navy Yard photo 4479-44 series), courtesy of Darryl L. Baker.
Trepang55kTrepang (SS-412) underway off Mare Island Navy Yard, Vallejo, CA., 12 July 1944.
US Navy photo (Mare Island Navy Yard photo 4479-44 series), courtesy of Darryl L. Baker.
Trepang121kCommissioning Pennant of Trepang (SS-412) after her second war patrol. The 86,000 Tons refers to the total Japanese tonnage sunk or damaged during these patrols, on display at the Vallejo Naval & Historical Museum, October 2004. Courtesy of Darryl L. Baker.
Lizardfish and friends 40k The submarine tender Sperry (AS-12), with a gaggle of submarines nestled nearby:
Tilefish (SS-307) ,
Brill (SS-330),
Trepang (SS-412) ,
Jallao (SS-368),
Spot (SS-413) and
Lizardfish (SS-373), late 1945 - early 46.
Courtesy of John Hummel.
Trepang84kTrepang (SS-412) battle flag reflecting her record of enemy sinkings.Courtesy of Darryl L. Baker.
Mare Island Reserve Fleet137kReserve fleet at Mare Island, circa Jan 1946. There are 52 submarines and 4 Sub Tenders in this photo. This photo is a Berthing list identifying the ships in the picture. Photo commerating 50 years, U. S. Submarine Veterans of WW II 1996 calendar, courtesy of Darryl Baker.
Mare Island Reserve Fleet453kPhoto of the Reserve fleet at Mare Island, circa Jan 1946. There are 52 submarines and 4 Sub Tenders in this photo. Whether coincidental or on purpose, the number of boats in the photo is the same as that which were lost in WW II.
From back to front and left to right, first group of 12 boats:
Sandlance (SS-381)
Tunny (SS-282)
Aspro (SS-309)
Lionfish (SS-298)
Guvania (SS-362)
Sunfish (SS-281)
Macabi (SS-375)
Gurnard (SS-254)
Pampanito (SS-383)
Mingo (SS-261)
Guitarro (SS-363)
Bashaw (SS-241)
From back to front and left to right, second group of 12 boats:
Sealion (SS-315)
Hammerhead (SS-364)
Bream (SS-243)
Seahorse (SS-304)
Tinosa (SS-283)
Pintado (SS-387)
Mapiro (SS-376)
Pipefish (SS-388)
Moray (SS-300)
Batfish (SS-310)
Hackleback (SS-295)
Bluegill (SS-242)
From back to front and left to right, third group of 12 boats:
Hawkbill (SS-366)
Menhaden (SS-377)
Perch (SS-313)
Loggerhead (SS-374)
Barbero (SS-317)
Baya (SS-318)
Hardhead (SS-365)
Spadefish (SS-411)
Springer (SS-414)
Devilfish (SS-292)
Kraken (SS-370)
Dragonet (SS-293)
From back to front and left to right, fourth group of 12 boats:
Lamprey (SS-372)
Piranha (SS-389)
Manta (SS-299)
Pargo (SS-264)
Rancador (SS-301)
Archerfish (SS-311)
Mero (SS-378)
Sawfish (SS-276)
Spot (SS-413)
Lizardfish (SS-373)
Jallao (SS-368)
Icefish (SS-367)
From back to front and left to right, last group of 4 boats:
Steelhead (SS-280)
Puffer (SS-268)
Stickleback (SS-415)
Trepang (SS-412)
From back to front, Submarine Tenders group of 4 ships:
Pelias (AS-14)
Aegir (AS-23)
Euryale (AS-22)
Griffin (AS-13)
Photo commerating 50 years, U. S. Submarine Veterans of WW II 1996 calendar, courtesy of Darryl Baker.
Trepang188k Painting by the artist G. Levey of the Trepang (SSN-674) & Trepang (SS-412) underway.
Courtesy of SSN 674 - USS TREPANG
Mare Island Reserve Fleet227k The Icefish (SS-367) in the Mare Island Reserve Fleet on 13 Oct 1948. The other subs outbaord of Icefish are Jallao (SS-368), Trepang (SS-412), Spot (SS-413) and Stickleback (SS-415). US Navy photo # 1916-10-48, courtesy of Darryl Baker. Photo added 09/20/06.

View the Trepang (SS-412)
DANFS history entry located on the Haze Gray & Underway Web Site.
Crew Contact And Reunion Information
U.S. Navy Memorial Foundation
Fleet Reserve Association

Additional Resources and Web Sites of Interest
Full Fathom Five, U.S. Submarine War Against Japan


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