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NavSource Online: Submarine Photo Archive

Patch on left contributed by Mike Smolinski, on right by Y.M.Umar, CPO (Ret.),Turkish Navy.

Entemedor (SS-340)

Radio Call Sign: November - Kilo - Golf - Foxtrot

Balao Class Submarine: Original name Chickwick, name changed on 24 September 1942. Laid down, 3 February 1944 at the Electric Boat Company, Groton, CT; Launched 17 December 1944; Commissioned USS Entemedor (SS-340) on 6 April 1945. Decommissioned on 10 December 1948 at Mare Island Naval Shipyard, Vallejo, CA and laid up in Pacific Reserve Fleet.
Re-commissioned on 24 October 1950. Sailed for New London, CT. on 2 January 1951. Entered Electric Boat Company yards on 31 January 1952 for extensive modernization under Guppy IIA program and received her Guppy bow and Electric Boat "sail" to house snorkel and mast equipment.
Placed in reserve commission on 28 February 1952 and back in active status on 17 October 1952. During overhaul at Philadelphia Naval Shipyard in March 1954, she underwent extensive electronics, sonar and machinery modernization.
Pursuant to the Security Assistance Program, Entemedor was transferred (leased) to the Republic of Turkey on 31 July 1972. Renamed/renumbered and Commissioned TCG Preveze (S-345) same day. On 1 August 1973, the ex-Entemedor was struck from the Naval Vessel Registry (NVR) and disposed of (cash sale) to the Republic of Turkey and the title transferred. TCG Preveze (S-345) continued to serve in the Turkish Submarine Forces until her Decommissioning on 20 March 1986. Final disposition and fate are unknown.
Researched by CTRC Donald J. Wagner, USN (Ret.) for NavSource. Data i.d. contributed by Chuck Jensen.

As built to the specifications: Displacement, Surfaced: 1,526 t., Submerged: 2,242 t.; Length 311' 9"; Beam 27' 3"; Draft 15' 3"; Speed, Surfaced 20.25 kts, Submerged 8.75 kts; Cruising Range, 11,000 miles surfaced at 10kts; Submerged Endurance, 48 hours at 2kts; 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 40mm gun, one 20mm gun, two .50 cal. machine guns; Patrol Endurance 75 days; Propulsion, diesel-electric reduction gear with four main generator engines., General Motors diesel engines, HP 5400, Fuel Capacity 118,000, four General Electric motors, HP 2,740, two 126-cell main storage batteries, two propellers.
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SizeImage DescriptionSource
Entemedor17kCommemorative postal cover marking Entemedor's (SS-340) keel laying, 3 February 1944 at the Electric Boat Company, Groton, CT.Courtesy of Jack Treutle (of blessed memory).
NR The Entemedor (SS-340) was sponsored by camera shy Mrs. E. V. Izac wife of Edouard Victor Michel Izac, was a lieutenant in the United States Navy during World War I and a Medal of Honor recipient. From 1937 to 1947, he served five terms as a Representative from California. Image and text provided by University of North Carolina at Chapel Hill Library, Chapel Hill, NC
Photo from The Wilmington Morning Star. [volume] (Wilmington, N.C.) 1909-1990, 01 August 1945, Image 10, via
Entemedor1.01kOrigins of Entemedor (SS-340).USN photo courtesy of Scott Koen &
Entemedor28kCommemorative commissioning post card of the launching of the Entemedor (SS-340), 17 December 1944.Courtesy of Richard Leonhardt.
Entemedor77k Entemedor (SS-340) in original WW II configuration. Courtesy of John Maxwell, former crewmember.
Entemedor20kCommemorative postal cover marking the commissioning of the Entemedor (SS-340), 6 April 1945. Courtesy of Jack Treutle (of blessed memory).
Entemedor389k Overhead WWII era photo of the Entemedor (SS-340), underway, place unknown.USN photo courtesy of
Entemedor84k Decommissioning ceremonies aboard Entemedor (SS-340) at Mare Island on 10 December 1948.USN photo # 2530-12-48, courtesy of Darryl L. Baker.
Chivo 484k Nereus (AS-17) with three clients moored alongside in the late 40's neighborhood:
Outboard is Chivo (SS-341) & inboard is Entemedor (SS-340). Inner most boat's # is obscured.
Photo courtesy of David Buell.
Entemedor185k Recommissioning ceremonies aboard Entemedor (SS-340) at Mare Island on 24 October 1950. USN photo # 7248-10-50, courtesy of Darryl L. Baker.
Entemedor85k Port side view of the Entemedor (SS-340), before she was converted to a Guppy, circa 1951.Courtesy of John Maxwell, former crewmember.
New London 210k Fulton (AS-11) at the state pier New London, CT. in March 1953. Submarines present include Entemedor (SS-340), Halfbeak (SS-352), Angler (SS-240), Razorback (SS-394), Tusk (SS-426), and Hardhead (SS-365). SS P&T Leader is across the pier. USNHC photograph # NH-905254 courtesy of Inland Maritime Museum at North Little Rock). Courtesy of CAPT Joseph A. Enright, USN (Retired).
Entemedor414kPort side view of the Entemedor (SS-340), underway in March 1956.USN photo # USN 1005600 courtesy of Scott Koen &
Entemedor174k Entemedor (SS-340), entering Monaco April 57.Courtesy of Chuck Jensen.
Entemedor145k Entemedor (SS-340), underway in the Mediterranean.Courtesy of Chuck Jensen.
Entemedor & Sea Leopard188kSea Leopard (SS-483) inboard & the Entemedor (SS-340) in Monaco, April 1957.Courtesy of Chuck Jensen.
Entemedor & Nautilus57kNautilus (SSN-571) inboard & the Entemedor (SS-340) with other unidentified boats at the Connecticut State Pier, New London, CT., circa 1960.Courtesy of Chuck Jensen.
Tusk 696k Tusk (SS-426), Entemedor (SS-340) & Skate (SSN-578) dusted with snow, circa 1960.Photo courtesy of via John Hummel, USN (Retired).
Entemedor67kStarboard quarter view of the Entemedor (SS-340) with her fiber glass sail, circa early 1960's. Those fiberglass sails were installed in Hawaii, and on both coasts of the U. S. over a number of years. The bureau approved two different sail designs under the GUPPY IIA modifications - one for "Portsmouth Boats" and the other for "Electric Boats" - Electric Boat sails had round ports and Portsmouth Boat sails had square ports to view forward (with other leading and trailing edge differences).Photo courtesy of Chuck Jensen.
Text courtesy of CTRC Donald J. Wagner, USN (Ret.)
Entemedor49kPort bow view of the Entemedor (SS-340) with crew dressed in whites on December k about to embark to take in the view at Toulon France on 25 August 1962. Among the sailors is Terry B. DeBerry. He is below the blue mark, on watch duty that day. Photo by Terry B. DeBerry & submitted by his daughter, Teresa Ewing.
Entemedor289k Entemedor (SS-340) going into Malta; the city is in the background and a barge is off our starboard bow.Photo by Ray Hammond.
Entemedor78kEntemedor (SS-340), underway in 1968, place unknown.Courtesy of George M. Arnold and Gale B. Brown, CWO4 U.S. N. (RET.)
Entemedor945k4 Page Welcome Aboard PDF pamphlet from Entemedor (SS-340). Courtesy of Tim Donahue via Mike Keating.
Entemedor296kA schedule for a Dependent's Cruise in May of 1960 on Entemedor (SS-340).Courtesy of Tim Donahue via Mike Keating.
Entemedor96k Entemedor (SS-340) doing small boat transfer with Tusk (SS-426) in 1960-1963.Photo courtesy of John Hummel, USN (Retired).
Entemedor683kEntemedor (SS-340) Decommissioning Plaque.PDF courtesy of George Simmons, ET1 SS.
TCG Preveze (S-345)
Entemedor154kU.S. & Turkish sailors stand on December k during the transfer ceremony as the boat undergoes a change of ownership,the ex-Entemedor (SS-340) becoming the Preveze (S-345) on 31 July 1972.Photo courtesy of Y.M.Umar,CPO (Ret.),Turkish Navy.
Entemedor91kPreveze (S-345) and crew pose for a family photo.Photo courtesy of Y.M.Umar,CPO (Ret.), Turkish Navy.
Caiman 140k Dumlupinar (S-339), Preveze (S-345), Basaran-ex Patroclus (ARL-19), former LST-955. In the rear of the photo past the unknown Floating Dry Dock is the TCG Akin (A585), ex-Greenlet (ASR-10) September 1981. Photo i.d. via Dave Deweese ETCS(SS), USN, ret.
Photo courtesy of Sait Kucuk, CPOS (Retired),Turkish Navy.

View the Entemedor (SS-340)
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
Guppy Submarines

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