The OA-12 "Duck" is the U.S. Air Force version of the Navy J2F-6 amphibian. It 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 II. After the war, air-sea rescue duties assigned to the USAF's Air Rescue Service required special aircraft for over-water missions. So in 1948, the USAF acquired eight surplus 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 Defence Assistance Program).

SPECIFICATIONS
Span: 39 ft.
Length: 34 ft.
Height: 14 ft.
Weight: 7,200 lbs.
Armament: None (provisions for underwing racks for bombs or depth charges)
Engine: Wright R-1820-54 of 1,050 hp.
Crew: Two
Cost: $69,000
Serial Number: BuNo 33587
Other Registrations: N67790
Displayed As: OA-12A 48-563