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Aviation History
1963
1963 - 1804.PDF
0 It B C C X © lliffe Transport Publications Ltd 1963 SIKORSKY S-65 (CH-53A) A peep into the future is afforded by this illustration of the CH-53A heavy assault helicopter now being developed for the US Marine Corps. Despite its ex cellent aerodynamic form (and very high flight performance) this helicopter has a severely functional design planned to minimize costs and facilitate operation even under the most arduous battlefield conditions 1 Rearward-retracting twin nosewheels 2 Forward-retracting mainwheel units: interchangeable left and right 3 Batteries 4 Electronics compartment 5 Three windscreen panels heated by conductive coating 6 Three-man flight crew 7 Collective-pitch lever 8 Cyclic-pitch levers 9 Rotary-rudder (tail rotor) pedals 10 Access to flight controls: servos, mix ing units 11 Electrical and hydraulics compart ments 12 Personnel door with integral steps 13 Roller conveyors (one shown inverted) 14 Two electric winches allow one-man loading/unloading 15 5,0O0lb cargo rings 16 10,0001b cargo rings 17 20,0001b cargo rings 18 Fittings for 24 stretchers 19 Seats for 30 troops (64 with crowding) 20 Emergency exit 21 Integral servicing platforms 22 Gravity filter to self-sealing tanks in sponsons 23 Pressure-refuelling control panel 24 Watertight hull and sponson 25 Hydraulic ramp-actuators 26 Folding ramp-extensions and rear door 27 Two General Electric T64-GE-6 gas turbines, 2,270 s.h.p. NRP 28 Engine mounting strut on fuselage 29 Engine air intake with gearbox fairing 30 Shaft drive to gearbox 31 Main gearbox driving main and tail rotors 32 Main-rotor swashplate assembly 33 Sikorsky auto-flight control system incorporating rocking-lever pitch con trol 34 All six blades fold hydraulically here 35 Blade-tip lights 36 Interchangeable BIM-type rotor blades 37 Stainless steel anti-abrasion leading edge 38 Self-lubricating head with visually checked reservoirs 39 Tail-rotor shaft and intermediate gear boxes 40 Tail-rotor pylon hinge-line 41 Rotating beacon 42 Fixed stabilizer (tailplane) 43 Auxiliary power unit (started by hy draulic accurm ulitor) 44 Shaft drive and auxiliary gearbox 45 Two generators 46 Fan-cooled oil coolers 47 600,000 BThU combustion heater 48 Electrically driven blower for hot or cold air 49 Combustion-heater exhaust 50 Cabin air supply ducts 51 Winching hatch directly below rotor pylon 2.
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