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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.
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Segundo17kCommemorative post mark on the occasion of Segundo's (SS-398) launching at Portsmouth Navy Yard, Kittery, ME., 5 February 1944. Courtesy of Jack Treutle.
Segundo50kCommemorative 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.
Segundo234k 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
Archerfish 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.
Segundo64k WW II battleflag of the Segundo (SS-398).USN photo courtesy of
Subron 5 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.
Segundo168k Stern view of Segundo (SS-398) departing Mare Island on 24 April 1946. US Navy Photo # 1621-46,courtesy of Darryl L. Baker.
Segundo234kBroadside view of Segundo (SS-398) off Mare Island on 24 April 1946. She was in overhaul at the yard from 29 January to 10 May 1946. US Navy Photo # 1623-46,courtesy of Darryl L. Baker.
Segundo222kBow on view of Segundo (SS-398) departing Mare Island on 24 April 1946. US Navy Photo # 1625-46, courtesy of Darryl L. Baker.
Segundo161kBroadside 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 &
Segundo46kSegundo (SS-398), port side view, circa late 1940's, after her deck guns have been removed. USN photo courtesy of USNI.
Segundo345k1947 photo from GMC Bill Wise of Segundo's (SS-398) after 40 mm with blimp overhead.Photo courtesy of John Hummel.
Segundo112kSegundo's (SS-398) crew photo at San Diego, CA, 1949, as part of Submarine Squadron 3. Photo courtesy of Ric Hedman , & dedicated to the memory of Master Chief Petty Officer Charles (Monty) M. Montgomery (deceased). Thanks to Chief Petty Officer Joe Phoenix.
Segundo169k Segundo (SS-398) underway in the Mare Island channel on 8 August1945. She was in overhaul at Mare Island form 16 May to 24 August1949. US Navy Photo # 4154-8-49, courtesy of Darryl L. Baker.
Carbonero208kAft plan view looking forward of Carbonero (AGSS-337) at Mare Island on 18 February 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 L. Baker.
Segundo775kLCDR H. S. Howard (right) relieves LCDR H. G. Johns, Jr. as Commanding Officer of the Segundo (SS-398) at Mare Island Naval Shipyard on 6 July 1953.Photo from the file of the Vallejo Naval and Historical Museum courtesy of Darryl L. Baker.
Photo added 02/15/14.
Segundo146k 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 L. Baker.
Bashaw 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).
Segundo177k The crew of Segundo (SS-398) is being addressed during her change of command at Mare Island on 18 October 1955. US Navy Photo # 26848-10-55, courtesy of Darryl L. Baker.
Segundo459kSegundo (SS-398) off Mare Island on 28 November 1955. U.S. Navy Photo # 272828-55, courtesy of Darryl L. Baker.
Segundo301k Segundo's (SS-398) after battery and mouldering laundry room in the early 1960's.Photo courtesy of John Hummel.
Segundo288k Segundo (SS-398) at sea in 1964.Photo courtesy of John Hummel.
Pomodon 361k View of the decommissioning of the three submarines at Mare Island on 1 August 1970.
Left to right: Pomodon (SS-486), and Medregal (SS-480) outboard of Segundo (SS-398).
Photo # 99510-8-70 TH, courtesy of Mare Vallejo Naval and Historical Museum via Darryl L. Baker.
Segundo 426k The colors are lowered for the final time aboard Segundo (SS-398) with Medregal (SS-480) outboard. Photo # 99514-8-70 TH, courtesy of Mare Vallejo Naval and Historical Museum via Darryl L. Baker.
Segundo267kThe 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.

View the Segundo (SS-398)
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

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