The Navy J2F-6 amphibian. was derived from the XJF-1, a Grumman amphibian that flew for the first time in May 1933. Later, Grumman built a variety of JF- and J2F- series aircraft that were used primarily by the Navy, Marine Corps, and Coast Guard, before and during World War Two.The OA-12 "Duck" was the U.S. Air Force version of the Navy J2F-6 amphibian.
Air Rescue Service required special aircraft for overwater missions. So in 1948, the USAF acquired eight surplaus Navy J2F-6s for air-sea rescue work. Five were designated OA-12s and sent to Alaska for duty with the 10th Air Rescue Squadron (the other three disappeared from the records and apparently went to an allied country under the Mutual Defense Assistance Program). Technical data is for J2F-6. JF-1 is similar, except for a less powerful engine (P&W R-1830 Twin Wasp radial @ 700 hp)
Manufacturer: Grumman Aircraft Engineering Co.
Year: 1934 (JF-1)
Span: 39 ft.
Length: 34 ft.
Height: 13 ft. 11 in.
Weight: 7,200 lbs.
Engine: Wright R-1820-54 of 1,050 hp.
Armament: in some cases 2 325 lb depth bombs
Crew: Two or Three
Maximum speed: 188 mph.
Cruising speed: 150 mph.
Range: 780 miles
Service Ceiling: 20,000 ft.
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