/ Grumman J2F Duck
Grumman J2F Duck
The Grumman J2F Duck (company designation G-15) is an American single-engine amphibious biplane.
It was used by each major branch of the U.S. armed forces from the mid-1930s until just after World War II, primarily for utility and air-sea rescue duties.
It was also used by the Argentine Navy, who took delivery of their first example in 1937.
Initial production version with 750 hp R-1820-20 engines.
United States Marine Corps version with nose and dorsal guns and under wing bomb racks.
As J2F-2 with minor changes for use in the United States Virgin Islands.
J2F-2 but powered by an 850 hp R-1820-26 engine.
J2F-2 but powered by an 850 hp R-1820-30 engine and fitted with target towing equipment.
J2F-2 but powered by a 1,050 hp R-1820-54 engine.
Columbia Aircraft built version of the J2F-5 with a 1,050 hp R-1820-64 engine in a long-chord cowling, fitted with under wing bomb racks and provision for target towing gear.
Air-sea rescue conversion for the United States Army Air Forces (and later United States Air Force, OA-12A).
2 survivors / passengers
34 ft 0 in (10.36 m)
39 ft 0 in (11.89 m)
13 ft 11 in (4.24 m)
409 sq ft (38.0 m2)
5,480 lb (2,486 kg)
7,700 lb (3,493 kg)
1 × Wright R-1820-54 Cyclone 9-cylinder air-cooled radial piston engine, 900 hp (670 kW)
3-bladed constant-speed propeller
190 mph (310 km/h, 170 kn)
155 mph (249 km/h, 135 kn)
70 mph (110 km/h, 61 kn)
780 mi (1,260 km, 680 nmi)
20,000 ft (6,100 m)
1 × Browning .30 cal machine gun (7.62 mm) on flexible mount in rear cockpit
650 lb (295 kg) of bombs or depth charges.
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