avia.wikisort.org - HelicopterThe Bell XH-15 (Bell Model 54) was an American four-seat utility helicopter designed and built by Bell Helicopter, to meet a requirement for a liaison and utility helicopter for the United States Army and United States Air Force.
| XR-15/XH-15 |
 |
| Role |
Four-seat utility helicopter Type of aircraft |
| National origin |
United States |
| Manufacturer |
Bell Helicopter |
| First flight |
1948 |
| Status |
Canceled |
| Primary user |
United States Air Force |
| Number built |
3 |
Development
The Model 54 was a conventional pod-and-boom four-seat helicopter with wheeled, fixed tricycle landing gear, powered by a single 275 hp Continental XO-470-5 piston engine located in the rear cabin, driving a single two-bladed rotor. The United States Army Air Forces (USAAF) ordered three in February 1946 as the XR-15. The first flight was made in March 1948 with the new designation XH-15, but no orders were forthcoming following evaluation by the United States Air Force (USAF) and the project ended in 1950.
Variants
- XR-15
- Military designation for three Model 54s ordered for evaluation.[1]
- XH-15
- XR-15 redesignated before delivery.[1]
Operators
United States
Specifications
General characteristics
- Crew: one
- Capacity: three
- Length: 27 ft 10 in (8.49 m)
- Height: 8 ft 10 in (2.68 m)
- Max takeoff weight: 2,795 lb (1,268 kg)
- Powerplant: 1 × Continental XO-470-5 piston engine, 475 hp (354 kW)
- Main rotor diameter: 37 ft 4 in (11.38 m)
Performance
- Maximum speed: 110 mph (170 km/h, 92 kn)
- Range: 200 mi (320 km, 170 nmi)
- Service ceiling: 20,000 ft (6,100 m)
See also
Related lists
References
Notes
Bibliography
- Andrade, John (1979). U.S.Military Aircraft Designations and Serials since 1909. Midland Counties Publications. ISBN 0-904597-22-9.
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Observation and utility helicopters | |
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| Names | |
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1 Unknown/not assigned |
United States helicopter designations, Army/Air Force and Tri-Service systems |
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Numerical sequence used by USAAC/USAAF/USAF 1941–present; U.S. Army 1948–1956 and 1962–present; U.S. Navy 1962–present |
Army/Air Force sequence (1941–1962) | | Prefix R-, 1941–1948 | |
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| Prefix H-, 1948–1962 | |
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Tri-service sequence (1962–present) | | 1962 redesignations | |
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| New designations | |
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| Alternate sequence | |
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| Non-sequential | |
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1 Not assigned |
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