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25 Oct 1922

United States
  • USS S-35 was decommissioned from service at Groton, Connecticut, United States for engine enhancement work by the Electric Boat Company. ww2dbase [S-35 | Groton, Connecticut | CPC]
4 May 1923

Photo(s) dated 4 May 1923
S-21, S-23, and S-26 at Groton, Connecticut, United States, 4 May 1923
25 Jul 1923

Photo(s) dated 25 Jul 1923
S-25 on a temporary wooden platform, Groton, Connecticut, United States, 5 Jul 1923
2 Jan 1924

Photo(s) dated 2 Jan 1924
USS S-27, USS S-46, and USS S-29 at the Submarine Base, Groton, Connecticut, United States, 2 Jan 1924
22 Jan 1924

United States
  • USS S-27 was commissioned into service at Groton, Connecticut, United States. ww2dbase [S-27 | Groton, Connecticut | CPC]
8 Apr 1924

Photo(s) dated 8 Apr 1924
S-18, S-47, and S-44 at Groton, Connecticut, United States, 8 Apr 1924
20 May 1935

Photo(s) dated 20 May 1935
Shark nearly ready for launching at the Electric Boat Company shipyard, Groton, Connecticut, United States, 20 May 1935
21 May 1935

Photo(s) dated 21 May 1935
Shark immediately after launching at the Electric Boat Company shipyard, Groton, Connecticut, United States, 21 May 1935
6 Jun 1935

United States
22 Jul 1936

United States
4 Oct 1936

Photo(s) dated 4 Oct 1936
View of submarine Permit with fore poppet, Groton, Connecticut, United States, 4 Oct 1936View of submarine Permit
5 Oct 1936

United States Photo(s) dated 5 Oct 1936
Launching of submarine Permit, Groton, Connecticut, United States, 1215 hours on 5 Oct 1936
12 Jun 1937

Photo(s) dated 12 Jun 1937
Salmon ready for launching at the Electric Boat Company shipyard, Groton, Connecticut, United States, 12 Jun 1937
28 Jun 1937

United States
23 Oct 1937

United States
30 Jun 1938

Photo(s) dated 30 Jun 1938
Skipjack running up Thames River after departing the Electric Boat Company shipyard at Groton, Connecticut, United States to go to the Naval Submarine Base for commissioning ceremonies, 30 Jun 1938
20 Aug 1938

United States
  • Sargo-class submarine Saury was launched at the Electric Boat Company, Groton, Connecticut, United States. The boat was sponsored by Mrs. Mary E. Casbarian who, as a civilian employee of the Navy, was responsible for arranging the sponsorships of all Navy ships in the region. In this case, she, herself, was the sponsor. ww2dbase [Electric Boat Company | Saury | Groton, Connecticut | DS]
1 Mar 1939

United States
27 Dec 1939

Photo(s) dated 27 Dec 1939
Electric Boat Company workers laying the keel of future submarine Gar, Groton, Connecticut, United States, 1000 hours on 27 Dec 1939
27 Jan 1940

Photo(s) dated 27 Jan 1940
Launch of submarine Tautog at the Electric Boat Company yard at Groton, Connecticut, United States, 27 Jan 1940
1 Apr 1940

Photo(s) dated 1 Apr 1940
Submarine Gar under construction, Groton, Connecticut, United States, 1 Apr 1940, photo 1 of 2; topside bow view looking aftSubmarine Gar under construction, Groton, Connecticut, United States, 1 Apr 1940, photo 2 of 2; topside stern view looking forward
3 Apr 1940

United States
27 Jun 1940

Photo(s) dated 27 Jun 1940
Submarine Gar under construction, Groton, Connecticut, United States, 27 Jun 1940; topside view looking aft
28 Sep 1940

Photo(s) dated 28 Sep 1940
Submarine Gar under construction, Groton, Connecticut, United States, 28 Sep 1940, photo 1 of 2; topside stern view looking forwardSubmarine Gar under construction, Groton, Connecticut, United States, 28 Sep 1940, photo 2 of 2; topside bow view looking aft
7 Nov 1940

Photo(s) dated 7 Nov 1940
Submarine Gar in her cradle on launch day, showing her stern section, Groton, Connecticut, United States, 7 Nov 1940Submarine Gar decorated for launching, showing her bow section, Groton, Connecticut, United States, 7 Nov 1940Launching of submarine Gar, Groton, Connecticut, United States, 7 Nov 1940
10 Dec 1940

United States
  • USS R-1 departed Groton, Connecticut, United States with Submarine Squadron 3 of Submarine Division 42. ww2dbase [R-1 | Groton, Connecticut | CPC]
31 Jan 1941

United States
  • Submarine Grayback was launched in Groton, Connecticut, United States, sponsored by the wife of Rear Admiral Wilson Brown, who was the Superintendent of the United States Naval Academy. ww2dbase [Electric Boat Company | Grayback | Groton, Connecticut | CPC]
Photo(s) dated 31 Jan 1941
Launch of submarine Grayback, Groton, Connecticut, United States, 31 Jan 1941
10 Feb 1941

United States
21 Jul 1941

United States
22 Nov 1941

United States Photo(s) dated 22 Nov 1941
Submarine Growler being launched at the Electric Boat Company, Groton, Connecticut, United States, 22 Nov 1941.Growler sponsor Mrs. Lucile L. Ghormley, wife of Vice-Admiral Robert L. Ghormley, and Rear Admiral Charles A. Dunn at the christening and launching of the submarine Growler, Groton, Connecticut, 22 Nov 1941.Tug boats towing the submarine Growler to the fitting out piers after being launched at the Electric Boat Company, Groton, Connecticut, United States, 22 Nov 1941.
1 Dec 1941

United States
30 Dec 1941

Photo(s) dated 30 Dec 1941
Submarine Growler at the fitting out piers at the Electric Boat Company, Groton, Connecticut, United States, 30 Dec 1941. Note Growler’s extended mine cutting gear above the suspended wooden planks.
2 Jan 1942

United States
20 Mar 1942

United States
17 May 1942

United States
5 Jun 1942

United States
22 Jul 1942

United States
19 Aug 1942

United States Photo(s) dated 19 Aug 1942
Electric Boat workers preparing submarine Harder for launching, Groton, Connecticut, United States, 19 Aug 1942
24 Aug 1942

United States
27 Aug 1942

United States Photo(s) dated 27 Aug 1942
Laying the keel of submarine Dorado, Groton, Connecticut, United States, 27 Aug 1942
21 Sep 1942

United States
30 Oct 1942

United States
5 Jan 1943

United States
21 Feb 1943

United States Photo(s) dated 21 Feb 1943
Launching of submarine Bluefish, Croton, Connecticut, United States, 21 Feb 1943Submarine Bluefish shortly after launching, Groton, Connecticut, United States, 21 Feb 1943
7 Mar 1943

Photo(s) dated 7 Mar 1943
Submarines Bonefish, Cod, Cero, and Corvina under construction at the Electric Boat Co. yard, Groton, Connecticut, United States, 7 Mar 1943
9 Mar 1943

Photo(s) dated 9 Mar 1943
Launching of USS Corvina at the Electric Boat Company yard, Groton, Connecticut, United States, 9 Mar 1943
25 Mar 1943

United States
4 Apr 1943

United States Photo(s) dated 4 Apr 1943
Launching of submarine Cero, Groton, Connecticut, United States, 4 Apr 1943
9 May 1943

United States
13 May 1943

United States
23 May 1943

United States Photo(s) dated 23 May 1943
Future commander of Dorado Earle C. Schneider at the launching ceremony with his son Earle V. Launching of submarine Dorado, Groton, Connecticut, United States, 23 May 1943
24 Jun 1943

United States
11 Jul 1943

United States
12 Aug 1943

United States
26 Aug 1943

United States
16 Sep 1943

United States
18 Sep 1943

United States
19 Sep 1943

United States Photo(s) dated 19 Sep 1943
Launching of USS Gabilan, Groton, Connecticut, United States, 19 Sep 1943
23 Sep 1943

United States
2 Dec 1943

United States
12 Dec 1943

United States Photo(s) dated 12 Dec 1943
Launching of submarine Barbero, Groton, Connecticut, United States, 12 Dec 1943
2 Jan 1944

United States
  • Submarine Baya was launched by the Electric Boat Company in Groton, Connecticut, United States, sponsored by the wife of US Navy Lieutenant Commander C. C. Kirkpatrick. ww2dbase [Electric Boat Company | Baya | Groton, Connecticut | CPC]
Photo(s) dated 2 Jan 1944
Launching of submarine Baya, Groton, Connecticut, United States, 2 Jan 1944
16 Feb 1944

United States
12 Mar 1944

United States
  • Submarine Blackfin was launched by the Electric Boat Company in Groton, Connecticut, United States, sponsored by the wife of US Navy Rear Admiral Charles A. Lockwood. ww2dbase [Blackfin | Groton, Connecticut | CPC]
30 Mar 1944

Photo(s) dated 30 Mar 1944
Launching of submarine Caiman, Electric Boat Company, Groton, Connecticut, United States, 30 Mar 1944
2 Apr 1944

Photo(s) dated 2 Apr 1944
Submarines Blenny (background) and Cochino (foreground) under construction at the Electric Boat Company in Groton, Connecticut, United States, early Apr 1944
9 Apr 1944

United States
21 May 1944

United States
  • Submarine Boarfish was launched at Groton, Connecticut, United States, sponsored by Miss Barbara Walsh, daughter of Senator Arthur Walsh of the US state of New Jersey. ww2dbase [Electric Boat Company | Boarfish | Groton, Connecticut | CPC]
18 Jun 1944

United States
25 Jun 1944

United States
2 Jul 1944

Photo(s) dated 2 Jul 1944
Launching ceremony of submarine Bugara, Groton, Connecticut, United States, 2 Jul 1944
1 Oct 1944

United States
29 Jun 1945

United States
7 Jul 1945

United States
  • USS R-1 departed Groton, Connecticut, United States for the Fleet Sonar School at Key West, Florida, United States. ww2dbase [R-1 | Groton, Connecticut | CPC]
27 Jun 1976

United States
  • Submarine Croaker was designated as a museum ship at Groton, Connecticut, United States. ww2dbase [Croaker | Groton, Connecticut | CPC]

Timeline Section Founder: Thomas Houlihan
Contributors: Alan Chanter, C. Peter Chen, Thomas Houlihan, Hugh Martyr, David Stubblebine
Special Thanks: Rory Curtis




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Modified from the Stinson L-5 Sentinel, the prototype L-5B air ambulance is shown during a manufacturer’s demonstration, 1944. Photo 2 of 3.


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