Please report any broken links or trouble you might come across to the Webmaster.
Please take a moment to let us know so that we can correct any problems and make your visit as enjoyable and as informative as possible.


NavSource Online: Submarine Photo Archive


Patches contributed by Mike Smolinski

Sea Dog (SS-401) (AGSS-401)

Radio Call Sign: November - Kilo - Papa - Bravo

Balao Class Submarine: Laid down, 1 November 1943, at Portsmouth Navy Yard, New Hampshire; Launched, 28 March 1944; Commissioned USS Sea Dog (SS-401), 3 June 1944; Decommissioned, 27 June 1946, at New London, CT.; Laid up in the Atlantic Reserve Fleet, New London Group; Placed in service in February 1960 as a Naval Reserve Training Vessel in the 1st Naval District; Re-designated Auxiliary Research Submarine (AGSS-401) in 1962; Placed out of service and Struck from the Naval Register, 2 December 1968; Final Disposition, sold for scrapping 2-1-71 to Southern Scrap Mat'l. Co., New Orleans, LA $83.889.00. Sale cancelled, and sunk target 18 May 1973. Sea Dog earned two battle stars during WWII.
Partial data submitted by Yves Hubert.

\ 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.
Click On Image
For Full Size Image
Size Image Description Source
Sea Dog23kCommemorative post mark from Sea Dog's (SS-401) launching at Portsmouth Navy Yard,New Hampshire, 28 March 1944.
Courtesy of Jack Treutle.
Sea Dog25kCommemorative launch day badge from Sea Dog's (SS-401) launching at Portsmouth Navy Yard,New Hampshire, 28 March 1944.
Courtesy of James A Munroe in remembrance of his father Raymond L Munroe Sr. who worked at the yard during WW II and the Korean wars as a chauffeur.
Sea Dogs482kDouble Dog Launching: Sea Dog (SS-401) & Sea Fox (SS-402).
From left to right: Mrs. O.C. Robbins, Matron of Honor, Mrs. Robert N. Robertson, Sponsor for Sea Fox (SS-402), Rear Admiral Thomas Witner, Mrs. Vernon L. Lowrance; Sponsor, & Mrs. James P. Lynch; Matron of honor for Sea Dog (SS-401) at double launching in submarine basin at Portsmouth Navy Yard, New Hampshire on 28 March 1944.
Photo courtesy of Lt. Francis Doerfler via Joe Pace.
Sea Dog229kMrs. Vernon L. Lowrance makes a hit on the Sea Dog (SS-401) on her launching at Portsmouth Navy Yard, New Hampshire on 28 March 1944. Photo courtesy of Lt. Francis Doerfler via Joe Pace.
Sea Dog576kCaptain Clifford H. Roper USN reading citation to Lt. Francis Doerfler, USNR, at commissioning of Sea Dog (SS-401) at Portsmouth Navy Yard, New Hampshire on 3 June 1944. Photo courtesy of Lt. Francis Doerfler via Joe Pace.
Sea Dog320kCommissioning party photo of Sea Dog's (SS-401) crew, 3 June 1944. Photo courtesy of Lt. Francis Doerfler via Joe Pace.
Sea Dog545kCommissioning of Sea Dog (SS-401) at Portsmouth Navy Yard, New Hampshire, 3 June 1944. Chaplin Lt. Cdr. Chester L. Hults USNR offering up prayers for the boat's officers & crew.Photo courtesy of Lt. Francis Doerfler via Joe Pace.
Sea Dog 76k The collier HIJMS Muroto at anchor, in 1928. In 1941 Muroto was converted to a supply ship. Torpedoed and sunk on 22 October 1944, SSW of Kagoshima (29 degrees 19' N, 129 degrees 44' E) by Sea Dog (SS-401). Photo courtesy of Japanese Naval Vessels of World War Two as seen by U.S. Naval Intelligence". Text taken from two sources: "Warships of the Imperial Japanese Navy, 1869-1945" by Jentschura, Jung and Mickel, translated by Antony Preston and J.D. Brown, and "The World's Merchant Fleets 1939" by Roger W. Jordan, courtesy of Robert Hurst.
Sea Dog1.20kRefit took Sea Dog (SS-401) into May, when preparations were made for her last foray into Japanese home waters. Additional duties during the patrol included those of flagship for the nine-submarine Japan Sea Patrol Pack (TC; 17.21). On the 27th, she departed Guam with the other two submarines of her immediate pack, Spadefish (SS-411) and Crevalle (SS-291).
Crewmen transferring a torpedo from a submarine tender to a submarine about to leave on a war patrol, May 1945.
Text courtesy of DANFS.
US National Archives photo # 80-G 468128 by Lt. Cmdr. Horace Bristol, from NARA, College Park, Maryland, courtesy of Sean Hert.
Sea Dog594kLoading a torpedo into after torpedo room of a submarine about to leave its base on a war patrol, May 1945.US National Archives photo # 80-G 468133 by Lt. Cmdr. Horace Bristol, from NARA, College Park, Maryland, courtesy of Sean Hert.
Sea Dog1.40kEnlisted men loading 5" gun aboard a submarine ready to leave its base on a war patrol, May 1945.US National Archives photo # 80-G 468130 by Lt. Cmdr. Horace Bristol, from NARA, College Park, Maryland, courtesy of Sean Hert.
Sea Dog801kSailors installing a 5" gun aboard a submarine after it has been a careful check in the shops of an advanced base, May 1945.US National Archives photo # 80-G 468138 by Lt. Cmdr. Horace Bristol, from NARA, College Park, Maryland, courtesy of Sean Hert.
Sea Dog524kSea Dog (SS-401) in floating drydock for repairs, May 1945.US National Archives photo # 80-G 468137 by Lt. Cmdr. Horace Bristol, from NARA, College Park, Maryland, courtesy of Sean Hert.
Sea Dog729kSea Dog (SS-401) on war patrol, May 1945.US National Archives photo # 80-G 468125 by Lt. Cmdr. Horace Bristol, from NARA, College Park, Maryland, courtesy of Sean Hert.
Sea Dog1.40kSea Dog (SS-401) on a war patrol, May 1945.US National Archives photo # 80-G 468129 by Lt. Cmdr. Horace Bristol, from NARA, College Park, Maryland, courtesy of Sean Hert.
Sea Dog1.70kSea Dog (SS-401) on a war patrol, May 1945.US National Archives photo # 80-G 468131 by Lt. Cmdr. Horace Bristol, from NARA, College Park, Maryland, courtesy of Sean Hert.
Sea Dog866kSailor at the valve controls on board the Sea Dog (SS-401), May 1945.US National Archives photo # 80-G 468127 by Lt. Cmdr. Horace Bristol, from NARA, College Park, Maryland, courtesy of Sean Hert.
Sea Dog324k Sea Dog (SS-401) prowls the Pacific in search of enemy shipping. May 1945. NARA Photo # 080-G-468123 by Lt. Comdr. Horace Bristol, from the Department of Defense Still Media Collection, courtesy of dodmedia.osd.mil.
Sea Dog132kSea Dog's (SS-401) flag. Photo courtesy of Lt. Francis Doerfler via Joe Pace.
Sea Dog278k Amidships looking forward plan view of Sea Dog (SS-401) at Mare Island on 11 June 1946. She was in overhaul at the yard from 28 February to 12 June 1946.
US Navy Photo # 2049-46, courtesy of Darryl L. Baker.
Sea Dog305k Amidships looking aft plan view of Sea Dog (SS-401) at Mare Island on 11 June 1946.
US Navy Photo # 2050-46, courtesy of Darryl L. Baker.
Sea Dog192kSea Dog (SS-401) stern view, underway off Mare Island, California, 11 June 1946.
US Navy photo from NARA, courtesy of Daniel Dunham.
Sea Dog188kSea Dog (SS-401) starboard view, underway off Mare Island, California, 11 June 1946.
US Navy photo from NARA, courtesy of Daniel Dunham.
Sea Dog176kSea Dog (SS-401) bow view, underway off Mare Island, California, 11 June 1946.
US Navy photo from NARA, courtesy of Daniel Dunham.
Sea Dog262kA very heavily armed boat lacking only a bone in her teeth as she works up sped in the Pacific in 1947. US Navy photo courtesy of Scott Koen & ussnewyork.com.
Sea Dog302kThrough 1947, Sea Dog (SS-401) remained in the eastern Pacific, conducting training operations in the Hawaiian Islands and off the coasts of Washington, British Columbia, and California. Text courtesy of DANFS. US Navy photo courtesy of Scott Koen & ussnewyork.com.
Sea Dog540kStern view in 1947. US Navy photo courtesy of Scott Koen & ussnewyork.com.
Sea Dog263kLots of foam emanates around the hull from her 1,800 plus tons in this bow on photo from 1947. US Navy photo courtesy of Scott Koen & ussnewyork.com.
Sea Dog317kSea Dog (SS-401) enters Pearl Harbor in September 1947 following a midshipman cruise.US National Archives photo # 80-G 421080, from NARA, College Park, Maryland, courtesy of Sean Hert.
Sea Dog84kIn mid-January 1948, Sea Dog (SS-401) again deployed to the western Pacific, where, after a visit to Australia, she again joined TG 71.2, the 7th Fleet's antisubmarine warfare training group at Tsingtao.
She appears here between 26-31 January 1948.
Text courtesy of DANFS.
Photos by Allan C. Green, from the State Library of Victoria, Australia, courtesy of Stephen Gower.
Sea Dog931kSea Dog (SS-401) in 1948 at Melbourne, Australia.Photo # SLV H91.108/3019 courtesy of Stephen Gower.
Photo added 03/27/13.
Sea Dog261kSea Dog (SS-401) underway in the 1950's, still displaying the unmistakable profile of the Balao-class "Fleet Boats." Deck guns have been removed to improve her submerged performance, and a post-war air-search radar is mounted on its tall mast. A surface/search radar and two antennas are on the periscope shears, while two sonar antennas can be seen on the deck forward. A whip antennae extends horizontally from the radar mast.
US Navy photo from NARA, # 80-G-634366, courtesy of Daniel Dunham.
Sea Dog54k12 years before Sea Dog (SS-401) met her end, she appears here in a photo from a slide taken by WWII enthusiast and camera buff Bob Zalanskas in March, 1965, on Derby Wharf, Salem, Massachusetts. Photo by Bob Zalanskas, courtesy submarinesailor.com.

View the Sea Dog (SS-401)
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
Ep-21 (1) - Victory At Sea ~ Full Fathom Five - HQ

Back To The Main Photo Index Back To the Submarine Index
Problems and site related matters, E-mail Webmaster.
This page is created by Gary Priolo, and maintained by Michael Mohl
1996 - 2014, NavSource History All rights reserved.