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NavSource Online: Submarine Photo Archive

Patch on left courtesy of Cully Middleton & submitted by Gary Carlson, others by Don McGrogan, BMCS, USN (ret.)

Segundo (SS-398)

Radio Call Sign: November - Kilo - Papa - Quebec

Balao Class Submarine: Laid down, 14 October 1943, at Portsmouth Navy Yard, Kittery, ME.; Launched, 5 February 1944; Commissioned USS Segundo (SS-398), 9 May 1944; Converted to a Fleet Snorkel Submarine in 1951, at San Francisco Naval Shipyard, Hunters Point; Decommissioned, 1 August 1970; Struck from the Naval Register, 8 August 1970; Final Disposition, sunk as a target by Salmon (SS-572). Segundo received four battle stars for World War II service and one for the Korean War.

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.

Size	Image Description	Source
17k	Commemorative post mark on the occasion of Segundo's (SS-398) launching at Portsmouth Navy Yard, Kittery, ME., 5 February 1944.	Courtesy of Jack Treutle.
50k	Commemorative launching tag of the Segundo (SS-398) at Portsmouth Navy Yard, Kittery, ME., 5 February 1944.	Photo courtesy of Ron Toth, Jr.via Tom Kermen.
234k	Officers and crew salute the colors as the Segundo (SS-398), slides down the launching ramp at Portsmouth Navy Yard, Kittery, ME.,5 February 1944.	USN photo courtesy of ussubvetsofwwii.org.
95k	Proteus (AS-19) with submarines of Submarine Squadron 20 alongside in Tokyo Bay, on VJ-Day, 2 September 1945. Names of the submarines present, their commanding officers and the commanding officers of SubRon20 and *Proteus* are printed at the bottom of the image: Archerfish (SS-311), Cavalla (SS-244), Gato (SS-212), Haddo (SS-255), Muskallunge (SS-262), Pilotfish (SS-386), Razorback (SS-394), Runner (SS-476), Segundo (SS-398), Sea Cat (SS-399), and Tigrone (SS-419).	Courtesy of Captain Joseph F. Enright, USN(Retired), 1979. US Navy photo # NH 95019, from the collections of the US Naval Historical Center.
64k	WW II battleflag of the Segundo (SS-398).	USN photo courtesy of ussubvetsofwwii.org.
181k	Subron 5 family photo fall/winter (1945)in Guam, from left to right, Segundo (SS-398), Sea Cat (SS-399), Blenny (SS-324), Blower (SS-325), Blueback (SS-326) & Charr (SS-328).	Photo by Lt. Herb Hanson, courtesy of John Hummel.
168k	Stern view of Segundo (SS-398) departing Mare Island on 24 April 1946.	US Navy Photo # 1621-46,courtesy of Darryl Baker.
234k	Broadside view of Segundo (SS-398) off Mare Island on 24 April 1946. She was in overhaul at the yard from 29 Jan to 10 May 1946.	US Navy Photo # 1623-46,courtesy of Darryl Baker.
222k	Bow on view of Segundo (SS-398) departing Mare Island on 24 April 1946.	US Navy Photo # 1625-46, courtesy of Darryl Baker.
161k	Broadside view of the Segundo (SS-398) on 24 April 1946. After WW II she was assigned to Submarine Squadron (SubRon) 3 in San Diego and began operations from there. The submarine made a three-month cruise to Australia and China in 1946 and a four-month cruise to China in 1948.	Text courtesy of DANFS. US Navy Photo # 1624-46, courtesy of Scott Koen & ussnewyork.com.
46k	Segundo (SS-398), port side view, circa late 1940's, after her deck guns have been removed.	USN photo courtesy of USNI.
345k	1947 photo from GMC Bill Wise of Segundo's (SS-398) after 40 mm with blimp overhead.	Photo courtesy of John Hummel. Photo added 08/09/11.
112k	Segundo's (SS-398) crew photo at San Diego, CA, 1949, as part of Submarine Squadron 3.	Photo courtesy of Ric Hedmen, & dedicated to the memory of Master Chief Petty Officer Charles (Monty) M. Montgomery (deceased). Thanks to Chief Petty Officer Joe Phoenix.
169k	Segundo (SS-398) underway in the Mare Island channel on 8 Aug 1945. She was in overhaul at Mare Island form 16 May to 24 Aug 1949.	US Navy Photo # 4154-8-49, courtesy of Darryl Baker.
208k	Aft plan view looking forward of Carbonero (AGSS-337) at Mare Island on 18 Feb. 1952. She is outboard of Diodon (SS-349) and Segundo (SS-398) is forward. Note Loon launcher on the after deck.	USN photo # 12023-2-52, courtesy of Darryl Baker.
146k	The crew of Segundo (SS-398) are inspected during her change of command at Mare Island on 6 July 1953.	US Navy Photo # 18022-7-53, courtesy of Darryl Baker.
111k	Bashaw (SSK-241), with Bream (SSK-243),Segundo (SS-398), Razorback (SS-394), and Menhaden (SS-377), in San Diego Harbor, circa 1953.	Courtesy of Phil Gulick, former 1st Amphib Recon Company member aboard the Perch (SS-313).
177k	The crew of Segundo (SS-398) is being addressed during her change of command at Mare Island on 18 Oct 1955.	US Navy Photo # 26848-10-55, courtesy of Darryl Baker.
459k	Segundo (SS-398) off Mare Island on 28 November 1955.	U.S. Navy Photo # 272828-55, courtesy of Darryl Baker.
301k	Segundo's (SS-398) after battery and mouldering laundry room in the early 1960's.	Photo courtesy of John Hummel. Photo added 08/09/11.
288k	Segundo (SS-398) at sea in 1964.	Photo courtesy of John Hummel. Photo added 08/09/11.
267k	The end (literally) of the Segundo (SS-398) after being struck by a torpedo from the Sailfish (SS-572) on 8 August 1970.	US Navy Photo courtesy of John Hummel. Photo added 08/09/11.