USS Locator (AGR-6), under way, date and location unknown.
History
United States
Name	Frank O. Peterson
Namesake	Frank O. Peterson
Owner	War Shipping Administration (WSA)
Operator	International Freigting Corp.
Ordered	as type (EC2-S-C5) hull, MC hull 2347
Builder	J.A. Jones Construction, Panama City, Florida[1]
Cost	$1,030,726[2]
Yard number	88
Way number	3
Laid down	9 February 1945
Launched	23 March 1945
Sponsored by	Mrs. Evelyn Flynn
Completed	6 April 1945
Identification	Call sign: ANTC [2]
Fate	Placed in the, National Defense Reserve Fleet, 8 October 1947 Acquired by US Navy, 10 June 1955
United States
Name	Locator
Namesake	One who discovers a position
Commissioned	21 January 1956
Decommissioned	9 August 1965
Reclassified	Guardian-class radar picket ship
Refit	Charleston Naval Shipyard, Charleston, South Carolina
Stricken	1 September 1965
Identification	Hull symbol: YAGR-6 (1956–1958) Hull symbol: AGR-6 (1958–1965) Call sign: NZRW [3]
Fate	Placed in National Defense Reserve Fleet, Hudson River Reserve Fleet, Jones Point, New York, 1 September 1965 Sold for scrapping, 4 January 1975
General characteristics [4]
Class and type	Liberty ship type EC2-S-C5, boxed aircraft transport
Tonnage	10,600 LT DWT 7,200 GRT
Displacement	3,380 long tons (3,434 t) (light) 14,245 long tons (14,474 t) (max)
Length	441 feet 6 inches (135 m) oa 416 feet (127 m) pp 427 feet (130 m) lwl
Beam	57 feet (17 m)
Draft	27 ft 9.25 in (8.4646 m)
Installed power	2 × Oil fired 450 °F (232 °C) boilers, operating at 220 psi (1,500 kPa) 2,500 hp (1,900 kW)
Propulsion	1 × triple-expansion steam engine,  (manufactured by General Machinery Corp., Hamilton, Ohio) 1 × screw propeller
Speed	11.5 knots (21.3 km/h; 13.2 mph)
Capacity	490,000 cubic feet (13,875 m3) (bale)
Complement	38–62 USMM 21–40 USNAG
Armament	Varied by ship Bow-mounted 3-inch (76 mm)/50-caliber gun Stern-mounted 4-inch (102 mm)/50-caliber gun 2–8 × single 20-millimeter (0.79 in) Oerlikon anti-aircraft (AA) cannons and/or, 2–8 × 37-millimeter (1.46 in) M1 AA guns
General characteristics (US Navy refit)[3]
Class and type	Guardian-class radar picket ship
Capacity	443,646 US gallons (1,679,383 L; 369,413 imp gal) (fuel oil) 68,267 US gallons (258,419 L; 56,844 imp gal) (diesel) 15,082 US gallons (57,092 L; 12,558 imp gal) (fresh water) 1,326,657 US gallons (5,021,943 L; 1,104,673 imp gal) (fresh water ballast)
Complement	13 officers 138 enlisted
Armament	2 × 3 inches (76 mm)/50 caliber guns

USS Locator (AGR/YAGR-6) was a Guardian-class radar picket ship, converted from a Liberty Ship, acquired by the US Navy in 1955. She was obtained from the National Defense Reserve Fleet and reconfigured as a radar picket ship and assigned to radar picket duty in the North Pacific Ocean as part of the Distant Early Warning Line.

Locator (YAGR-6) was laid down on 9 February 1945, under a Maritime Commission (MARCOM) contract, MC hull 2347, as the Liberty Ship Frank O. Peterson, by J.A. Jones Construction, Panama City, Florida. She was launched 23 March 1945, sponsored by Mrs. Evelyn Flynn, and delivered on 6 April 1945, to International Freigting Corp.^[5][2]

She was acquired by the Navy from the US Maritime Administration (MARAD) on 10 June 1955. She was converted to a radar picket ship at the Charleston Naval Shipyard, Charleston, South Carolina, and commissioned Locator on 21 January 1956.^[5][3]

Departing Charleston, 21 February, Locator steamed through the Panama Canal, and arrived San Francisco, California, 17 March. After a period of repair and training she was assigned to a radar picket station off the US West Coast. Coordinating operations with the Continental and North American Air Defense Commands, she detected, tracked, and reported all air contacts that came within her radar surveillance.^[5]

Locator was reclassified AGR-6 on 28 September 1958, and for the next 7 years continued the constant vigil at sea, ever ready to sound the signal of enemy air attack. Her operations at sea were alternated by in-port replenishment periods at San Francisco.^[5]

After contributing 9 years to the defense of the United States. Locator decommissioned at San Francisco, 9 August 1965. Her name was struck from the Naval Register 1 September 1965, and was sold for scrapping, 4 January 1975.^[5][3]

Scanner's crew was eligible for the following medals:

• National Defense Service Medal

^[3]

• Photo gallery of USS Locator at NavSource Naval History