Bell Wing Ding
| Wing Ding | |
|---|---|
| General information | |
| Type | Experimental compound helicopter |
| National origin | United States |
| Manufacturer | Bell Helicopter |
| History | |
| First flight | 1963 |
| Developed from | Bell 47 |
The Bell Wing Ding was a 1960s compound helicopter built by Bell Helicopter.[1]
Design and development
Bell's intent was to develop an aircraft that would be able to lift payloads greater than that of a standard helicopter when it was hovering, and to take advantage of a standard aircraft's conventional takeoff and landing.[1][2]
The aircraft was built around a standard 1958 Bell 47G-2A-1 helicopter, a 25 ft (7.6 m) wing sourced from a Piper Comanche monoplane was positioned located immediately behind the canopy and above the engine.[3][4] The wing had a slightly tapered planform and no dihedral. Flaps and ailerons were incorporated into the wing's trailing edge. A small all-flying elevator was located just ahead of the tail rotor, and the ventral fin was increased in size. The original skid undercarriage was replaced with a 4-wheeled landing gear which the early Bell 47 helicopters had been fitted with. The rotor's mast angle would be varied in flight.[2]
When initially tested, two streamline fuel tanks were fitted just outboard of the fuselage, though these were later shifted to be at the wingtips.
Operational history
The Wing Ding first flew at Amon Carter Field in Fort Worth, Texas in May 1963 and tests continued through to May 1964. It was given the FAA registration N6723D with that being kept active through to 2007.[3] According to Jane's All the World's Aircraft, the Wing Ding had taken off and landed with forward runs, as well as making steep helicopter-type descents.[5] It also had been flown cross-country at 100 mph (160 km/h). The wings proved to be too large for acceptable handling qualities and performance.[4]
Specifications
Data from Jane's All the World's Aircraft 1963-64[5]
General characteristics
- Crew: 2
- Length: 31 ft 7 in (9.63 m)
- Wingspan: 25 ft (7.6 m)
- Height: 9 ft 3 in (2.82 m)
- Powerplant: 1 × Lycoming VO-435 , 240 hp (180 kW)
- Main rotor diameter: 37 ft 9 in (11.51 m)
- Main rotor area: 1,119 sq ft (104.0 m2)
Performance
- Cruise speed: 87 kn (100 mph, 160 km/h)
See also
Related development
References
- ^ a b Pelletier, A.J. (1992). Bell Aircraft. London: Putnam Aeronautical Books. p. 70. ISBN 1557500568. Retrieved February 8, 2026.
- ^ a b Bowers, Peter M. (1984). Unconventional Aircraft (2nd ed.). Blue Summit Ridge, PA: TAB Books. pp. 314–315. ISBN 0830684506. Retrieved February 8, 2026.
- ^ a b "Aircraft N6723D Data". Airport-Data.com. Retrieved February 8, 2026.
- ^ a b "Bell 47G-2 Wing Ding". The Vertical Flight Society. March 2012. Retrieved February 8, 2026.
- ^ a b Taylor, John W. R., ed. (1963). Jane's All the World's Aircraft 1963-64. New York, NY: McGraw-Hill Book Company, Inc. p. 174. Retrieved February 8, 2026.
Further reading
- Lynn, Robert R. (July–August 1966). "Wing-Rotor Interactions". Journal of Aircraft. 3 (4). Reston, VA: AIAA: 326–332. doi:10.2514/3.43742.