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NavSource Online: Submarine Photo Archive


Patch contributed by Mike Smolinski
Radio Call Sign: November - Echo - Papa - November

Mackerel (AGSS-570)
T-1 (SST-1) / Mackerel (SST-1)


T-1 Class Submarine: Planned as Auxiliary Submarine (AGSS-570); Laid down, 1 April 1952, at Electric Boat Division, General Dynamics Corp., Groton, CT; Launched, 17 July 1953; Placed in service as T-1 (SST-1), 9 October 1953; Renamed Mackerel (SST-1), 15 July 1956; Commissioned USS Mackerel (SST-1) in 1971; Decommissioned, and simultaneously struck from the Naval Register, 31 January 1973, at Naval Station Key West, FL.; Final Disposition, sunk as a target off Puerto Rico, 18 October 1978.

Specifications: Displacement, Surfaced: 303 t., Submerged: 347 t.; Length 131' 3"; Beam 13' 7"; Draft 12' 2" (mean); Speed, Surfaced 10 kts, Submerged 10.5 kts; Complement 18; Armament, one 21" torpedo tube; Propulsion, diesel-electric, single screw.
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Mackerel81kLots of children dream of participating in the launching of a real submarine. Some times that wish becomes true. John Robison is the 10 year old that is standing third from the rear of the conning tower as the T-1 (SST-1) floats on the Thames River at Electric Boat Division, General Dynamics Corp., Groton, CT., 17 July 1953.
The fleet boat in the background is the Cobia (SS-245).
Official US Navy photo, courtesy of Electric Boat Division, General Dynamics Corp. Photo submitted in memory of Clifford E. Robison, Electric Boat Co, by John Robison.
Mackerel110kThe T-1 (SST-1), shown here three days after her commissioning at Electric Boat Division, General Dynamics Corp., Groton, CT.,12 October 1953. US Navy photo, courtesy of Electric Boat Division, General Dynamics Corp.
Mackerel 608k T-1 (SST-1), broadside view, at Electric Boat Division, General Dynamics Corp., Groton, CT.,12 October 1953. US National Archives photo # 80-G-199151, from NARA, College Park, Maryland, courtesy of Sean Hert.
Mackerel133kThe T-1 (SST-1), shown here three days after her commissioning at Electric Boat Division, General Dynamics Corp., Groton, CT.,12 October 1953.US Navy photo.
Mackerel 489k T-1 (SST-1), elevated position head on bow view at Electric Boat Division, General Dynamics Corp., Groton, CT.,9 December 1953. US National Archives photo # 80-G-199160, from NARA, College Park, Maryland, courtesy of Sean Hert.
Dogfish, T1 & T236kThe Dogfish (SS-350) with T-1 (SST-1) inboard & Marlin (SST-2) outboard, circa post 1953.USN photo courtesy of Electric Boat / ussdogfish.com.
Mackerel415kNew London, CT., 23 January 1954. Target sub dwarfed by conventional sub, Barb (SS-220)
Moored at the Navy's submarine base here, the little T-1 (T stands for target) is a product of the Electric Boat Division, General Dynamics Corp, Groton CT. The little boats job is to work with the antisubmarine forces, as a target for them, and also as an experimental vessel, to try out some ideas the Navy has. The T-1 has a carefully selected crew of 14 enlisted men and two officers. She holds within her 131 feet of length the same general machinery and equipment as the GUPPY submarines more than twice her length and displaces 250 tons to the conventional submarines 1500.
AP Wirephoto courtesy of David Buell.
Mackerel25k The Mackerel (SST-1) in the Cooper River at the Charleston S.C. Naval shipyard. The Mackerel was at the yard for repairs to the hull in October of 1954. The hull was coated with neoprene rubber to protect from the corrosion. This was a major project for the paint shop.
US Navy photo courtesy of Robert Hall.
Medregal726kFrom left to right:Mackerel (SST-1), unknown, Medregal (SS-480), Batfish (SS-310) & Chivo (SS-341) at Key West, 1955.Photo courtesy of John Hummel.
Mackerel459kBroadside view of the Mackerel (SST-1), underway, 1955. U.S. Navy official photo courtesy of Robert Hurst.
Photo added 11/09/12.
Mackerel39kBroadside view of the Mackerel (SST-1), underway, possibly when she participated in fleet exercises off the east coast, mainly conducting training and target assignments, including some for the Fleet Sonar School at Key West in 1956. Partial text courtesy of DANFS.
USN photo courtesy of Robert Hurst.
Chivo 82k Mackerel (SST-1) & Chivo (SS-341) on the way to Gulfport Mississippi, January February 1957. Photo courtesy of John Hummel.
Thornback 651k Birds of a feather not all flocking together: Mackerel (SST-1), Thornback (SS-418), Clamagore (SS-343) & Chivo (SS-341) with the Howard Gilmore (AS-16) in the distance. Photo courtesy of John Hummel.
Mackerel70k Squadron 12, Key West Fla, in Mid 60's: Marlin (SST-2) and Mackerel (SST-1).
Photo courtesy of John Hummel.
Mackerel68kMackerel (SST-1), underway, date and place unknown.
US Navy photo courtesy of George M. Arnold.
Mackerel98kMackerel (SST-1), underway, date and place unknown.
US Navy photo courtesy of George M. Arnold.
Mackerel134kThis boat is Mackerel (SST-1) or Marlin (SST-2) and was probably taken at Key West. It could have been taken at one of two of the following periods; in June/July 1967 Mackerel had "special equipment" removed from her during this drydocking, equipment that had been used to prove concepts for the NR-1. It looks as if most of the aft superstructure has been removed. It is also possible that the photo was taken shortly after her decommissioning on 03 January 1973. She may be undergoing preps for disposal.
Marlin was preserved for museum donation and retained her superstructure.
USN photograph courtesy of Scott Koen & ussnewyork.com.
Photo i.d. courtesy of Ric Hedman & Dave Johnston (USNR). Text i.d. courtesy of Dave Johnston (USNR).
Marlin216kThe Marlin (SST-2), the T-1 and the Quillback (SS-424) at the pier at the Naval Station Key West in March 1973. Photo from the Ida Woodward Baron Collection in the Florida Keys Public Library via flickr.com courtesy of Steven Gower.
Mackerel49kModel of the Mackerel (SST-1).
Courtesy of Rick Spector.
Mackerel71k The Mackerel (SST-1) at Naval Base Mayport Fla. in mid to late 1975.Photo owned & copyrighted courtesy of Bob Royes.

View the T-1/Mackerel (SST-1)
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
USS Mackerel (SST-1)

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