USSSausalito (PF-4), bow view, taken indry dock while she was being prepared for transfer to theRepublic of Korea,c. 1952,Yokosuka, Japan.
History
United States
Name	Sausalito
Namesake	City ofSausalito, California
Ordered	as aType S2-S2-AQ1 hull,MCE hull 1422[1]
Builder	Permanente MetalsRichmond Shipyard #4,Richmond, California
Yard number	47[1]
Laid down	7 April 1943
Reclassified	Patrol Frigate (PF), 15 April 1943
Launched	20 July 1943
Sponsored by	Mrs. Richard Shaler
Commissioned	4 March 1944
Decommissioned	16 August 1945
Identification	Hull symbol: PG-112 Hull symbol: PF-4 Call sign: NYQG
Fate	Transferred toSoviet Navy, 16 August 1945
Stricken	1 September 1972
Soviet Union
Name	EK-16
Acquired	16 August 1945
Commissioned	16 August 1945[a]
Decommissioned	1 November 1949
Fate	Returned to United States, 1 November 1949
United States
Name	Sausalito
Acquired	Returned by Soviet Navy, 1 November 1949
Recommissioned	15 September 1950
Decommissioned	9 June 1952
Honors and awards	6battle stars,Korean War
Fate	Transferred toRepublic of Korea Navy, 4 September 1952
South Korean frigate ROKSImchin (PF-66), the former USSSausalito (PF-4)
South Korea
Name	Imchin
Acquired	4 September 1952
Identification	Hull symbol: PF-66
Fate	Scrapped 1973
General characteristics[2]
Class and type	Tacoma-class frigatepatrol frigates
Displacement	1,430long tons (1,450 t) (light load) 2,415 long tons (2,454 t) (full load)
Length	303 ft 11 in (92.63 m)
Beam	37 ft 6 in (11.43 m)
Draft	13 ft 8 in (4.17 m)
Installed power	2 ×3-Drumexpress boilers , 240 psi (1,700 kPa) 5,500 ihp (4,100 kW)
Propulsion	2 × Verticaltriple-expansion steam engine 2 ×shafts
Speed	20.3 kn (37.6 km/h; 23.4 mph)
Complement	190
Armament	3 ×3 in (76 mm)/50caliberdual-purpose (DP) gun 2 × twin40 mm (1.57 in) Boforsanti-aircraft (AA) gun mounts 9 ×20 mm (0.79 in) Oerlikon cannon AA gun mounts 2 ×Depth charge tracks 8 × Depth charge projectors 1 ×Hedgehog

USSSausalito (PF-4), was aTacoma-classpatrol frigate in commission from 1944 to 1945 and from 1950 to 1952, was the only ship of theUnited States Navy to be named forSausalito, California. She also served in theSoviet Navy asEK-16 and in theRepublic of Korea Navy asROKSImchin (PF-66).

Sausalito waslaid down on 7 April 1943, as a patrolgunboat,PG-112, under aMaritime Commission (MARCOM) contract, MC hull No. 1422, atPermanente MetalsRichmond Shipyard #4,Richmond, California; reclassified as apatrol frigate,PF-4, on 15 April 1943, she waslaunched on 20 July 1943, sponsored by Mrs. Richard Shaler, andcommissioned on 4 March 1944.^[3]

Aftershakedown,Sausalito arrived atAdak,Territory of Alaska, on 5 October 1944 forconvoy escort duty in theAlaskan Sea Frontier. She performed these duties until^[3] – having been selected for transfer to theSoviet Navy inProject Hula, a secret program for the transfer of US Navy ships to the Soviet Navy atCold Bay, Alaska, in anticipation of theSoviet Union joining thewar against Japan^[4] – she departed on 5 June 1945, foroverhaul atSeattle, Washington, to prepare her for transfer.^[3] She then proceeded to Cold Bay and began training her new Soviet crew.^[4]

Following the completion of training for her Soviet crew,Sausalito wasdecommissioned on 16 August 1945, at Cold Bay, and transferred to the Soviet Union, underLend-Lease immediately along with hersister shipsTacoma (PF-3),Hoquiam (PF-5),Pasco (PF-6),Albuquerque (PF-7), andEverett (PF-8). Commissioned into the Soviet Navy immediately,^[a]Sausalito was designated as astorozhevoi korabl ("escort ship") and renamedEK-16 in Soviet service. She soon departed Cold Bay, bound forPetropavlovsk-Kamchatsky, in the Soviet Union, and served as a patrol vessel in theSoviet Far East.^[5]

In February 1946, the United States began negotiations for the return of ships loaned to the Soviet Union for use during World War II. On 8 May 1947,United States Secretary of the NavyJames V. Forrestal informed theUnited States Department of State that theUnited States Department of the Navy wanted 480 of the 585 combatant ships it had transferred to the Soviet Union for World War II use returned,EK-16 among them. Negotiations for the return of the ships were protracted, but on 1 November 1949 the Soviet Union finally returnedEK-16 to the US Navy atYokosuka,Japan.^[5]

Reverting to her original name,Sausalito was placed inreserve at Yokosuka. With the outbreak of theKorean War on 25 June 1950, the U.S. Navy needed additional escort vessels, and on 15 September 1950,Sausalito was recommissioned at Yokosuka. On 26 November 1950, she departed Yokosuka forHŭngnam,North Korea. There, until 24 December 1950, she performed harbor control duties, which included escorting ships through themineswept channel, passing instructions to ships entering theharbor,patrolling the entrance against hostile craft and driftingnaval mines, and conducting shore bombardment when required.^[3]

Between February and May 1951,Sausalito's assignments included escorting thebattleshipMissouri on her shore bombardment station,blockade patrols, shore bombardment on the east coast of North Korea fromWonsan toChongjin, and harbor control duty at Wonsan, broken by periods of upkeep atSasebo and Yokosuka, Japan. Between June and August 1951, she escortedunderway replenishment groups off the Korean coast.^[3]

Afterdrydocking and upkeep at Yokosuka,Sausalito departed for thePhilippine Islands, in October 1951. In late November and early December 1951, she conducted a patrol against unauthorizedfishing vessels in theSonsorol Islands, in the westernCaroline Islands, apprehending one vessel. After spendingChristmas 1951, inSubic Bay, onLuzon, she made agood-will tour toSaigon,South Vietnam;Bangkok,Thailand;Singapore; andPenang,Federation of Malaya. February 1952, found her back in Korean waters, where she resumed escort and patrol duties before returning to Yokosuka, for the last time under theUnited States flag on 31 May 1952. The US Navy decommissionedSausalito on 9 June 1952.^[3]

On 4 September 1952, the United States transferred the ship, on loan, to theRepublic of Korea for service in theRepublic of Korea Navy asROKSImchin (PF-66). She replaced anotherTacoma-class patrol frigate, theSouth Korean ship ROKSApnok, ex-USS Rockford (PF-48), which had been irreparably damaged in a collision on 21 May 1951.^[3]

Imchin was scrapped in 1973.^[2]

The US Navy awardedSausalito sixbattle stars for her Korean War service.^[3]

• Photo gallery of USSSausalito at NavSource Naval History
• hazegray.org: USSSausalito

• Tacoma-class frigates
• Ships built in Richmond, California
• 1943 ships
• World War II frigates and destroyer escorts of the United States
• Tacoma-class frigates of the Soviet Navy
• World War II frigates of the Soviet Union
• Cold War frigates of the Soviet Union
• Cold War frigates and destroyer escorts of the United States
• Korean War frigates and destroyer escorts of the United States
• Tacoma-class frigates of the Republic of Korea Navy
• Korean War frigates of South Korea
• Ships transferred under Project Hula
• Sausalito, California

• Articles with short description
• Short description is different from Wikidata
• Use dmy dates from October 2021
• Source attribution