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Suggest pagesGrumman JF Duck
| JF Duck | |
|---|---|
 |
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| Grumman JF-2 Duck in United States Coast Guard service. | |
| Role | Utility amphibian |
| Manufacturer | Grumman |
| First flight | 25 April 1933 (XJF-1 prototype) |
| Introduction | 1935 |
| Primary users | United States Navy United States Coast Guard United States Marine Corps |
| Number built | 48 |
| Variants | Grumman J2F Duck |
The Grumman JF "Duck" was a single-engine amphibious biplane.
Contents |
[edit] Design and development
It first flew on 24 April 1933 and was manufactured from 1934 until 1936, when production switched to the J2F Duck and later variants.[1] The more obvious external appearance clue to distinguish a JF from an early J2F is the deletion of the inter-aileron strut between the wings on the J2F; less noticeable perhaps is the J2F's slightly longer rear fuselage/float joining fillet beneath the tail.[1]
The Duck's main pontoon was part of the fuselage, almost making it a flying boat, though it appears more like a standard aircraft with an added float. This general configuration was shared with the earlier Loening OL.
[edit] Operational history
The JF-1 that was first ordered, had the same Pratt & Whitney R-1830-62 engine as the XJF-1 prototype. The US Navy ordered 27 JF-1s with the first Ducks delivered beginning in May 1934 to Norfolk NAS. These early production series had provisions for mounting a machine gun at the rear seat facing aft, a single bomb rack mounted under each wing, capable of carrying a 100 lb (45.4 kg) bomb or depth charge on each. The main float was also a Grumman design (Grumman Model "A") and like the prototype, it included retractable main landing gear, making the Duck a true amphibian. Ducks served as general/utility amphibians for photographic, target-towing, scouting and rescue work.
[edit] Variants
- XJF-1
- Prototype with 700 hp Pratt & Whitney R-1535-62 engine, one built (BuNo 9218).
- JF-1
- Production variant with 700 hp Pratt & Whitney R-1830-62 Twin Wasp engine, 27 built (BuNos 9434-9455, 9523-9527).
- JF-2
- Variant for the United States Coast Guard powered by a 750 hp Wright R-1820-102 Cyclone engine, 15 built (BuNo 0266, 00371-00372, 01647, USCG V141-V155).
- JF-3
- JF-2 for the U.S. Navy, five built (BuNos 9835-9839).
- JF-4
- JF-5
- JF-6
- Grumman G15-G-20
- Grumman AO-10
[edit] Operators
- United States Navy
- United States Coast Guard
- United States Marine Corps - Operated one JF-2
- Argentine Navy - Operated eight JF-2s
[edit] Specifications (JF)
General characteristics
- Crew: one, pilot
- Length: 32 ft 7 in (9.93 m)
- Wingspan: 39 ft 0 in (11.89 m)
- Height: 15 ft 1 in ()
- Wing area: 409 sq ft ()
- Useful load: 851 lb (386 kg)
- Powerplant: 1 × Pratt & Whitney R-1830 Twin Wasp, 700 hp (522 kW)
Performance
- Service ceiling: 21,500 ft (6,550 m)
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[edit] See also
- Related development
- Aircraft of comparable role, configuration and era
[edit] References
- Notes
- ^ a b Jordan, Corey C. "Grumman's Ascendency: Chapter Two." Planes and Pilots Of World War Two, 2000. Retrieved: 22 July 2011.
- Bibliography
- Allen, Francis J. "A Duck Without Feathers". Air Enthusiast, Issue 23, December 1983—March 1984, pp. 46–55, 77—78. Bromley, Kent UK: Pilot Press, 1983.
- Thruelsen, Richard. The Grumman Story. New York: Praeger Publishers, Inc., 1976. ISBN 0-275-54260-2.
- Treadwell, Terry. Ironworks: Grumman's Fighting Aeroplanes. Shrewsbury, UK: Airlife Publishers, 1990. ISBN 1-85310-070-6.
[edit] External links
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This aircraft of the 1930s article is a stub. You can help Wikipedia by expanding it. |
