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Aviation History
1962
1962 - 0902.PDF
»"*** Be//47G-3B BellHUL-IM Bell HU-ID Iroquois Bell HO-4 mock-up VTOL SURVEY... and spraying gear, cargo carriers, dual controls, external cargo sling and many other extras. • Gross weight, 2,8501b; empty weight, 1,7131b; max speed, 105 m.p.h. up to 15,000ft; max recommended cruising speed, 87 m.p.h.; max rate of climb up to 15,000ft, 850ft/min; hovering ceiling out of ground effect, 15,000ft; max range, 192 miles. Model 47J-2 Ranger This is the stream lined business/utility member of the 47 family, with a lengthened cabin seating the pilot ahead of three passengers. Furnishing can be utility or de luxe. With the passenger seat removed, the Ranger can be used for cargo carrying or as an ambulance with accommodation for two standard Army stretchers and a jump-seat for an attendant. Removal of the port door and a trap permits use of an internal powered hoist for rescue work. The current 47J-2 has a 305 h.p. (de-rated to 260 h.p.)Lycoming VO-540-B1B engine, metal rotor blades and hydraulic powered controls. • Rotor diam, 37ft Hin; length of fuselage, 32ft 4 in; height, 9ft 3Jin; gross weight, 2,8501b; empty weight, 1,7301b; max speed, 105 m.p.h.; max cruising speed, 93 m.p.h.; max rate of climb at s.l., 800ft/min; hovering ceiling in ground effect, [9,200ft; max range, 260 miles. HUL-1M Generally similar to the Model 47J, this is the first aircraft powered by the 250 s.h.p. Allison T63-A-3 shaft turbine, as specified for the US Army's important LOH programme. The first of two prototypes ordered for evaluation by the US Navy flew in February. • Gross weight, 2,8501b; empty weight, 1,3501b; max speed, 105 m.p.h.; max rate of climb at s.l., over l,300ft/min; hovering ceiling out of ground effect, 9,400ft; range with 1,1701b payload, 200 miles. HU-1B Iroquois This nine-seat utility helicopter superseded the six-seat HU-1A in production in mid-1961 and de liveries of 274 ordered to date for the US Army will continue until late 1963. All aircraft built so far have had a 960 s.h.p. Lycoming T53-L-5 shaft turbine, but this is soon to be up-rated to 1,100 s.h.p. The rotor blades have a wider chord than those of the HU-1A and are of honey comb construction. In the ambulance role, three litters and an attendant can be carried. Eight HU-lBs have been ordered for the RAAF. The US Marines have chosen a slightly-modified version as a standard assault support helicopter (ASH) and more than 100 will be bought to replace the Cessna light aircraft and Kaman HOK helicopters now used for observation, target acquisition, reconnaissance, command con trol and casualty evacuation duties. • Rotor diam, 44ft; length of fuselage, 39ft 7£in; height, 14ft 7in; gross weight, 8,5001b; empty weight, 4,3691b; max speed, 139 m.p.h.; max recommended cruising speed, 128 m.p.h.; hovering ceiling in ground effect, 15,400ft; max range, 288 miles. HU-1D Iroquois Relocation of the fuel tanks and lengthening of the cabin make room for a pilot and 12 fully-equipped Bensen B-9 troops, or six stretchers and a medical attendant, in this version of the Iroquois, which flew for the first time on August 16. 1961. The engine is an 1,100 s.h.p. T53-L-9 shaft turbine, with HU-1B transmission and rotor system. One of the YHU-1D develop, ment aircraft has set up a 1,000-km Class Eld closed-circuit speed record of 134.934 m.p.h. and two Class El time-to-height records. Series production is scheduled to start next year. Model 204B Now undergoing its certi fication trials, the Model 204B is a ten-seat commercial counterpart of the HU-1B. with an 1,100 s.h.p. Lycoming LTC1K-2 (T53-L-9) engine and all-weather instrument flight system. Mitsui have a licence to build it in Japan. Agusta in Italy have already begun delivery of the AB 204B which usually has a Gnome engine. HO-4 Bearing the company Model num ber 206, this little four-seater was Bell's successful entry in the US Army's design contest for a fight observation helicopter (LOH). Five have been ordered for evalua tion in the second half of this year, in competition with the Hiller HO-5 and Hughes HO-6. The winner is expected to receive orders for 3,500 production aircraft, costing some $200m, over the next ten years, to replace the Bell H-13 and Hiller H-23 helicopters and Cessna L-19 light aircraft now in service. Powered by a 250 h.p. Allison T63 shaft turbine, the HO-4 is designed to carry a 4001b payload, in addition to pilot and fuel, at more than 115 m.p.h. XV-3 This pioneer tilting-rotor converti- plane has logged more than 450 hours of test time in the last three years, including flight testing by Bell, USAF, US Army and NASA pilots. It has flown at speeds ranging from 15 m.p.h. to 181 m.p.h., at altitudes up to 12,000ft, and has made more than 100 conversions. A NASA contract, announced in February, covers propeller/rotor system modifications to improve the high-speed stability and control characteristics. The XV-3 has a fixed wing, with a tilting propeller/rotor at each wing-tip, driven by a single fuselage-mounted Pratt & Whitney R-985 engine of 450 h.p. The propeller rotors function as normal helicopter rotors for take-off and landing. For cruising flight they are tilted forward and downward electrically through 90° to operate as tractor propellers, with the wing providing all necessary lift. Transition takes 10-15sec, stable flight being possible with the propel ler/rotors in any intermediate position. • Rotor diam, 33ft; span, 31ft 3Jin; length of fuselage, 30ft 3 in; height, 13ft 6in; normal gross weight, 4,8001b; empty weight, 3,6001b.
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