The XHCH was developed in the early 1950s to meet a US Navy requirement for a helicopter capable of carrying supplies and ammunition between ships and carrying heavy loads for short distances from ship-to-shore or from marshalling areas ashore to front-line units. Three prototypes (BuNos 138654/138656) were ordered, and a full-size mockup was inspected in May 1953. However, budget cuts forced the Navy to cancel the XHCH-1 project on January 18, 1959, without a prototype being built.[1]
Specifications (XHCH estimated)edit
3-view line drawing of the McDonnell XHCH-1
Data from McDonnell Douglas aircraft since 1920. Volume II[1]
General characteristics
Crew: two
Capacity: 30 troops or 24 stretchers
Length: 37 ft 7 in (11.45 m)
Height: 16 ft 8 in (5.07 m)
Empty weight: 14,879 lb (6,749 kg)
Gross weight: 35,331 lb (16,026 kg)
Max takeoff weight: 42,000 lb (19,051 kg)
Powerplant: 2 × Allison T56 gas turbine compressed air generator engines, 3,750 shp (2,800 kW) each
Maximum speed: 115 mph (185 km/h, 100 kn) at sea level
Combat range: 23 mi (37 km, 20 nmi)
Service ceiling: 7,497 ft (2,285 m) hover ceiling out of ground effect
Rate of climb: 3,100 ft/min (16 m/s)
Referencesedit
^ abFrancillon, Rene. McDonnell Douglas aircraft since 1920. Volume II (2nd ed.). Putnam Aeronautical. ISBN978-0-85177-828-0.
January 01, 1970
mcdonnell, xhch, model, 1950s, aerial, crane, helicopter, proposal, united, states, navy, mcdonnell, corporation, xhch, role, aerial, crane, helicopter, national, origin, united, states, manufacturer, mcdonnell, aircraft, status, cancelled, mockup, phase, only. The McDonnell XHCH Model 86 was a 1950s aerial crane helicopter proposal for the United States Navy by the McDonnell Corporation XHCH Role Aerial crane helicopter National origin United States Manufacturer McDonnell Aircraft Status Cancelled mockup phase only Primary user United States NavyDevelopment editThe XHCH was developed in the early 1950s to meet a US Navy requirement for a helicopter capable of carrying supplies and ammunition between ships and carrying heavy loads for short distances from ship to shore or from marshalling areas ashore to front line units Three prototypes BuNos 138654 138656 were ordered and a full size mockup was inspected in May 1953 However budget cuts forced the Navy to cancel the XHCH 1 project on January 18 1959 without a prototype being built 1 Specifications XHCH estimated edit nbsp 3 view line drawing of the McDonnell XHCH 1 Data from McDonnell Douglas aircraft since 1920 Volume II 1 General characteristicsCrew two Capacity 30 troops or 24 stretchers Length 37 ft 7 in 11 45 m Height 16 ft 8 in 5 07 m Empty weight 14 879 lb 6 749 kg Gross weight 35 331 lb 16 026 kg Max takeoff weight 42 000 lb 19 051 kg Powerplant 2 Allison T56 gas turbine compressed air generator engines 3 750 shp 2 800 kW each Powerplant 3 McDonnell 12JP20 cold pressure jets 1 600 lbf 7 1 kN thrust each Main rotor diameter 65 ft 20 m Main rotor area 3 320 sq ft 308 m2 Performance Maximum speed 115 mph 185 km h 100 kn at sea level Combat range 23 mi 37 km 20 nmi Service ceiling 7 497 ft 2 285 m hover ceiling out of ground effect Rate of climb 3 100 ft min 16 m s References edit a b Francillon Rene McDonnell Douglas aircraft since 1920 Volume II 2nd ed Putnam Aeronautical ISBN 978 0 85177 828 0 Retrieved from https en wikipedia org w index php title McDonnell XHCH amp oldid 1112045411, wikipedia, wiki, book, books, library,
