USS S-25

	USS S-25 in 1923 or 1924, possibly off New London, Connecticut.
History
United States
Name	USS S-25
Builder	Fore River Shipyard
Laid down	26 October 1918
Launched	29 May 1922
Commissioned	9 July 1923
Decommissioned	4 November 1941
Fate	Transferred to the UK under Lend-lease, loaned to the Polish government-in-exile
Poland
Name	ORP Jastrząb
Fate	Sunk by friendly fire, 2 May 1942
General characteristics
Class and type	S-class submarine
Displacement	854 long tons (868 t) surfaced; 1,062 long tons (1,079 t) submerged;
Length	219 ft 3 in (66.83 m)
Beam	20 ft 8 in (6.30 m)
Draft	15 ft 11 in (4.85 m)
Speed	14.5 knots (16.7 mph; 26.9 km/h) surfaced; 11 knots (13 mph; 20 km/h) submerged;
Complement	42 officers and men
Armament	1 × 4 in (100 mm)/50 deck gun; 4 × 21 inch (533 mm) torpedo tubes;

USS S-25 (SS-130) was a first-group (S-1 or "Holland") S-class submarine of the United States Navy.

S-25 was laid down on 26 October 1918 by the Fore River Shipbuilding Corporation in Quincy, Massachusetts. She was launched on 29 May 1922 sponsored by Mrs. Ross P. Schlabach, and commissioned on 9 July 1923 with Lieutenant Commander George H. Fort in command.

US Navy service

Operating from New London, Connecticut, in 1923, S-25 participated in winter maneuvers in the Caribbean Sea and Panama Canal Zone area from January into April 1924. Then transferred to the West Coast, she operated primarily in the waters off southern California into 1931. Fleet problems and division exercises during that period took her back to Panama from March into May 1927 and in February 1929 and to Hawaii in 1927, 1928, and 1930. Transferred again, she sailed from San Diego, California, on 15 April 1931; arrived at Pearl Harbor on 25 April; and from then into 1939 operated in Hawaiian waters.

S-25 cleared Pearl Harbor to return to the Atlantic Ocean on 16 June of that year and arrived at New London on 25 August. Voyage repairs followed and in February 1940, she was assigned to a test and evaluation division there. In December, she was detached and ordered to Key West, Florida, where she provided training services into May 1941, then returned to New London to prepare for transfer under the terms of the lend-lease agreement.

Polish Navy service

S-25 was decommissioned on 4 November 1941 and simultaneously transferred to Great Britain where she was renamed HMS P551. She was then loaned to the government of Poland in exile, accepted by Lieutenant Commander B. Romanowski of the Polish Navy, and commissioned as ORP Jastrząb.

While traveling in an Allied convoy near Norway, Jastrzab strayed some 100 miles (160 km) off her proper course^{[citation needed]}, and on 2 May 1942 was sunk by friendly fire by the destroyer HMS St. Albans (ex-USS Thomas) and the minesweeper HMS Seagull.