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NavSource Online: Submarine Photo Archive

Contributed by Mike Smolinski.

Trigger (SS-564)

Radio Call Sign: November - Alpha - Oscar - Sierra

Tang Class Submarine: Laid down, 24 February 1949, at the Electric Boat Co., Groton, CT.; Launched, 14 June 1951; Commissioned, USS Trigger (SS-564), 31 March 1952; Decommissioned, struck from the Naval Register, and transferred (sold) to Italy, under terms of the Security Assistance Program, 2 July 1973, renamed; INS Livo Piomarta (S-515); Final Disposition, decommissioned by the Italian navy, 28 February 1986, fate unknown.

Specifications: Displacement, Surfaced: 2,100 t., Submerged: 2,700 t.; Length 287'; Beam 27' 3"; Draft 19'; Speed, Surfaced 20 kts, Submerged 18 kts; Complement 8 Officers 75 Enlisted; Armament, eight 21" torpedo tubes, eight MK-49/57 mines; Propulsion, diesel-electric, Fairbanks-Morse Type 3 diesel engines, HP 4500, two electric motors, HP 5600, single screw.

Size	Image Description	Source
79k	Page 1 of a 9 page article by Capt. Ned Beach on the construction of the new Trigger (SS-564) and memories of the old Trigger (SS-237). Article appeared in the Sept. 1951 edition of Argosy Magazine.	Courtesy of Rick Connole, son of Commander David R. Connole, K.I.A. while commanding the Trigger (SS-237), 28 March 1945.
167k	Pre commissioning photo of the Trigger (SS-564) on Page 2 of a 9 page article by Capt. Ned Beach on the construction of the new *Trigger* and memories of the old Trigger (SS-237). Article appeared in the Sept. 1951 edition of Argosy Magazine.	Courtesy of Rick Connole, son of Commander David R. Connole, K.I.A. while commanding the Trigger (SS-237), 28 March 1945.
154k	Sub school photo and reunion photo of the Trigger (SS-564) on Page 3 of a 9 page article by Capt. Ned Beach on the construction of the new *Trigger* and memories of the old Trigger (SS-237). Article appeared in the Sept. 1951 edition of Argosy Magazine.	Courtesy of Rick Connole, son of Commander David R. Connole, K.I.A. while commanding the Trigger (SS-237), 28 March 1945.
193k	Page 4 of a 9 page article by Capt. Ned Beach on the construction of the new Trigger (SS-564) and memories of the old Trigger (SS-237). Article appeared in the Sept. 1951 edition of Argosy Magazine.	Courtesy of Rick Connole, son of Commander David R. Connole, K.I.A. while commanding the Trigger (SS-237), 28 March 1945.
198k	A taste of bubbly on the bow and a waterborne photo of the Trigger (SS-564) on Page 5 of a 9 page article by Capt. Ned Beach on the construction of the new *Trigger* and memories of the old Trigger (SS-237). Article appeared in the Sept. 1951 edition of Argosy Magazine.	Courtesy of Rick Connole, son of Commander David R. Connole, K.I.A. while commanding the Trigger (SS-237), 28 March 1945.
218k	Page 6 of a 9 page article by Capt. Ned Beach on the construction of the new Trigger (SS-564) and memories of the old Trigger (SS-237). Article appeared in the Sept. 1951 edition of Argosy Magazine.	Courtesy of Rick Connole, son of Commander David R. Connole, K.I.A. while commanding the Trigger (SS-237), 28 March 1945.
202k	Page 7 of a 9 page article by Capt. Ned Beach on the construction of the new Trigger (SS-564) and memories of the old Trigger (SS-237). Article appeared in the Sept. 1951 edition of Argosy Magazine.	Courtesy of Rick Connole, son of Commander David R. Connole, K.I.A. while commanding the Trigger (SS-237), 28 March 1945.
226k	Page 8 of a 9 page article by Capt. Ned Beach on the construction of the new Trigger (SS-564) and memories of the old Trigger (SS-237). Article appeared in the Sept. 1951 edition of Argosy Magazine.	Courtesy of Rick Connole, son of Commander David R. Connole, K.I.A. while commanding the Trigger (SS-237), 28 March 1945.
205k	Last page of a 9 page article by Capt. Ned Beach on the construction of the new Trigger (SS-564) and memories of the old Trigger (SS-237). Article appeared in the Sept. 1951 edition of Argosy Magazine.	Courtesy of Rick Connole, son of Commander David R. Connole, K.I.A. while commanding the Trigger (SS-237), 28 March 1945.
596k	PDF Welcome Aboard the Trigger (SS-564), 31 March 1952.	Courtesy of Rick Connole, son of Commander David R. Connole, K.I.A. while commanding the Trigger (SS-237), 28 March 1945.
1m	PDF article about Trigger (SS-564), construction & launching.	Courtesy of Rick Connole, son of Commander David R. Connole, K.I.A. while commanding the Trigger (SS-237), 28 March 1945.
210k	Commissioning portrait for Trigger (SS-564), presented by sponsor Vida Connole Benson to Cdr Ned Beach, with Vida's son Rick Connole, 31 March 1952, depicting new *Trigger* surfacing and the former Trigger (SS-237) in the heavens.	Courtesy of Rick Connole, son of Commander David R. Connole, K.I.A. while commanding the Trigger (SS-237), 28 March 1945.
120k	Oil painting of the Trigger (SS-564), being presented by sponsor Vida Connole Benson to Cdr. Ned Beach, with Vida's son Rick Connole, 31 March 1952.	Courtesy of Rick Connole, son of Commander David R. Connole, K.I.A. while commanding the Trigger (SS-237), 28 March 1945.
231k	2 April 1952 front cover of the newspaper Dolphin with the commissioning portrait for Trigger (SS-564), being presented by sponsor Vida Connole Benson to Cdr Ned Beach, with Vida's husband Captain Roy Benson and son Rick Connole, 1952.	Courtesy of Rick Connole, son of Commander David R. Connole, K.I.A. while commanding the Trigger (SS-237), 28 March 1945.
26k	Following shakedown training off Rio de Janeiro, Brazil, the Trigger (SS-564) returned to her home port, New London, and participated in local operations for the remainder of 1952.	Photo courtesy of Robert Hirst. Text courtesy of DANFS.
44k	Between 17 August & 15 September 1957, the Trigger (SS-564) joined Nautilus (SSN-571) and proceeded to the Arctic. She spent 10 days at the ice pack in the north Greenland Sea and made several short trips under the ice pack.	USN photo courtesy of Artic Submarine Laboratory, text courtesy of DANFS.
44k	Trigger (SS-564) photo Xmas card, circa 1961-64.	Photo courtesy of James Cooley.
90k	Trigger (SS-564) in drydock, 1961.	Photo courtesy of Francis Koslouski, an EN who served aboard *Trigger* from 1959-62, courtesy of James Cooley.
39k	22 June 1962 photo of the Trigger (SS-564) was coming into the harbor at Naples, Italy. We came in on our elec motors with the diesel engines shutdown. The Captain wanted to make any spies think we were a nuke boat.	Text & photo courtesy of James Cooley.
90k	This photo was one that was given to crewmembers to put in a Trigger (SS-564) photo Xmas card, circa 1961-64.	Photo courtesy of James Cooley.
143k	Mixed bag of boats from different bases moored together possibly at the Key West Naval Base or at Roosevelt Roads, P.R. From left to right & front to back: From New London with the eight ball plaque of subron 8; Blenny (SS-324); from Key West with the subron 12 plaque: Grenadier (SS-525); from Norfolk with the subron 6 plaque; Carp (SS-338) & again from Key West; the Balao (SS-285) tied up to the pier. Behind them and from Charleston with subron 4 is the Trigger (SS-564) and an unidentified boat. *Grenadier* received her high sail in an overhaul in 1961-62. I found a picture of *Blenny* that showed her with a high sail that was dated 18 Apr 1966. All of the boats in the photo were known to have been based in, or operating out of, Key West in the period of 1962-1966. Therefore, I can reliably conclude that this photo was taken between 1962 and 1966. *Grenadier* and Balao (SS-285) participated in the Cuban Missile Crisis blockade in October, 1962. In November, *Grenadier* was one of several ships that participated in a maritime rights show of force exercise off Cuba. It is conceivable that these other boats were dispatched to the area as backup in case this exercise went south. So it's possible that this photo was taken during late 1962 during the aftermath of the Cuban Missile Crisis.	Photo by Tim "T-Spoon" Spoon & submitted by John Hummel. Text I.d. courtesy of John Hummel, Mike Keating & Dave Johnston.
222k	The Tangs (SS-563/68) were the first U.S. post war designed attack submarines. Trigger (SS-564) is shown here in May 1967, with a somewhat modified sail but without PUFFS. Only Wahoo (SS-565), Gudgeon (SS-567), & Harder (SS-568) were refitted with PUFFS passive ranging sonar (as was the very similiar Darter (SS-576).)	Photo & text courtesy of U.S. Submarines Since 1945, An Illustrated Design History by Norman Friedman & James L. Christley. Naval Institute Press.
142k	Trigger (SS-564) circa 1971 up around The Puget Sound area of Northen Washington State or Sothern Vancouver Island...during the Mark 48 Torpedo test and evaluation trials.	Photo courtesy of TM R. J. Hansen (Retired LCDR) provided by atule.com.
90k	Trigger (SS-564) behind a replica of the Civil War Confederate Navy submarine *Hunley* at Pier November in Charleston, SC in 1968. Taken from the bridge of the Chivo (SS-341). In the distance at pier Lima there appears to be other subs and possibly the tender Howard W. Gilmore (AS-16).	Photo courtesy of Mike Cappucci.
12k	Three ships align the Trigger's (SS-564) sail in this 1971 photo at NSB Bangor, WA. The three target ships were sunk with the first live "War Shots" when testing the "new" Mark 48 Torpedo while under developement In April/May 1971. Westinghouse Corp. and the Clevite Corp. Each was building a version of the Mark 48 and these were the final tests to prove that they worked. Each ship was sunk with a different version of the torpedo, two Westinghouse and one Clevite. The Westinghouse were the Mark 48 Mod 0 and Mod 2. The Clivite fish was Mark 48 Mod 1. Clevite won the contract. The current Mark 48 in the fleet is called the Mark 48 AdCap (Advance Capabilities) and was being built by Hughes Corp.	Photo & text courtesy of TM R. J. Hansen (Retired LCDR).
96k	Bow view of the Trigger (SS-564), 1972, NSB Bangor, WA.	Photo courtesy of TM R. J. Hansen (Retired LCDR).
166k	The ex-Trigger (SS-564) as the Livio Piomarta (S-515) at Taranto, 1979.	Itialian Navy photo by Lt.Cdr. Erminio Bagnasco via Maurizio Brescia. Photo added 04/17/08.