The Bell XH-15 (Bell Model 54) was an American two-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.
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.
Variantsedit
XR-15
Military designation for three Model 54s ordered for evaluation.[1]
Andrade, John (1979). U.S.Military Aircraft Designations and Serials since 1909. Midland Counties Publications. ISBN0-904597-22-9.
December 18, 2023
bell, bell, model, american, seat, utility, helicopter, designed, built, bell, helicopter, meet, requirement, liaison, utility, helicopter, united, states, army, united, states, force, 15role, four, seat, utility, helicopternational, origin, united, statesmanu. The Bell XH 15 Bell Model 54 was an American two 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 15Role Four seat utility helicopterNational origin United StatesManufacturer Bell HelicopterFirst flight 1948Status CanceledPrimary user United States Air ForceNumber built 3 Contents 1 Development 2 Variants 3 Operators 4 Specifications 5 See also 6 References 6 1 Notes 6 2 BibliographyDevelopment editThe 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 editXR 15 Military designation for three Model 54s ordered for evaluation 1 XH 15 XR 15 redesignated before delivery 1 Operators edit nbsp United StatesUnited States Air ForceSpecifications editGeneral 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 editRelated lists List of helicoptersReferences editNotes edit a b Andrade 1979 p 162 Bibliography edit Andrade John 1979 U S Military Aircraft Designations and Serials since 1909 Midland Counties Publications ISBN 0 904597 22 9 Retrieved from https en wikipedia org w index php title Bell XH 15 amp oldid 1154001103, wikipedia, wiki, book, books, library,
