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U. S.
Military Aircraft Grumman JRF-5 GOOSE Photo by Coll B. Thouanel |
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In 1937 Grumman produced the G-21 Goose for the civil market, and this attractive high wing type was the first of the company's classic line of amphibians. In 1938 the US Navy evaluated a single example of the production G-21A as the XJ3F-1, and then ordered the type as the JRF. The first 10 were JRF-1s delivered in 1939, and five were later adapted as JRF-1As for target towing and photography. The seven JRF-2s and three de-iced JRF-3s were delivered to the US Coast Guard and the US Navy took 10 JRF-4s with provision for two depth charges. The definitive naval model was the JRF-5 of which 185 were delivered from 1941 for air survey work. Five were diverted to Great Britain as Goose Mk Is and 50 similar JRF-6Bs became Goose Mk II trainer and rescue aircraft. The US Army Air Force bought 26 OA-9s similar to the JRF-1 for liaison and observations, and the fleet was swelled by three OA-13As and two OA-13Bs impressed in 1942. |
TECHNICAL DATA
| Description | Specifications |
| Manufacturer: Grumman | Length: 38 ft. 6 in. |
| First Flight: 1938 | Height: 16 ft. 2 in. |
| Model: 5 | Wing Span: 49 ft. 0 in. |
| Crew: Two | Wing Area: 375.0 sq. ft. |
| Nickname: Goose | Empty Weight: 5,425 lb. |
| Basic Role: General purpose amphibian. | Max. Weight: 8,000 lb. |
| Other
Versions: JRF US Navy model in six sub
variants.
OA-9 USAAF model in three sub variants. Goose British model in two sub variants. |
Payload: Seven passengers or freight. |
| Principal User: Canada, Great Britain, Portugal, and USA. |
Propulsion |
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Performance |
Power Plant: Pratt & Whitney R-985-AN-6 Wasp Junior radial piston engines. |
| Range: 640 miles. | Horsepower: 450-hp. |
| Max. Speed: 201 mph. at 5,000 ft. | No. Of Engines: Two |
| Ceiling: 21,000 ft. | |
| Climb Rate: 1,100 ft. per minute. |