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Aviation History
1981
1981 - 0089.PDF
FLIGHT International, 10 January 1981 83 75 Flexible coulpings 76 Aluminium cover 77 Tail rotor gearbox 78 Glassfibre, foam-filled rotor blades 79 Pitch balance weights 80 Pitch change linkage 81 Pitch change push-pull rod 82 Pitch change hydraulic servo unit 83 Rotor mast rigid support tie-bars 84 Engine oil tank (both sides) 85 Transmission oil tanks (two) 86 Lower scissor link 87 Swashplate (fitted on a single-row ball bearing) 88 Upper scissor link 89 Rotor shaft 90 Mobile body servo units (three, Dunlop) 91 Pitch change control rods and arms 92 Semi-rigid glassfibre Starflex rotor head, showing flexible flapping path IMLDIOT > v J \ 1 1 •*-, y. 36 37 38 39 40 41 42 43 44 45 4« 47 48 4? 50 51 52 53 54 55 56 17 A/hr NiCad battery Ground power receptacle Rear baggage compartment (19 cu. ft.) provision for electrical equipment beneath (all compart ments lockable) Built-in foot step Flexible landing legs (high tensile steel) Ski-shaped landing skids (light alloy) Cabin foot steps Wear pads (steel) Hydraulic shock absorbers Ground resonance arm (flexible steel) Ground maneuvering wheels (alternative bolt positions) Stainless steel engine deck and support beams Multi-bolt tail boom attachment frames Tail boom external stiffeners Internal skin torque stiffeners VOR aerial VHF aerial Continous single-spar horizontal stabiliser Attachment mounting fittings and doubler plate Camber-sectioned fin Stiffened fin and tail rotor gearbox support frames 57 Symmetrical-section lower fin 58 Rail protection guard 59 Ground handling bar 60 Navigation light 61 Upper rotating beacon 62 Dynamic type engine air intakes fitted with anti- icing grid 63 Allison 250-C20F free turbine, 420 b.h.p. engines 64 Power output shaft to input gearbox 65 Engine front support coupling and gimbal joint (engine torque) 66 Engine centre flexible rubber mounting block 67 Main transmission gearbox and oil filler 68 Flexible coupling drive shaft 69 Stainless steel firewall (each engine is fitted with a fire detection system) 70 Transmission brake 71 Oil cooling fan unit (two axial wheels and two stators) 72 Bifurcated oil cooler air duct 73 One engine and half transmission oil coolers (three coolers, two groups) 74 Tail rotor shaft self aligning bearings supported on elastomeric bushes 93 Self lubricating spherical bearing (centre sleeve at the end of star arm) 94 Laminated spherical bearing (drag loads) 95 Glassfibre sleeves 96 Glassfibre rotor blades, spun foam filled spar 97 Trailing edge roving strip 98 Stainless steel leading edge 99 Blade locking pins 100 Bonding braid 101 Dynamic and static balance weights 102 Tracking tabs 103 Rotor head spring type anti-vibrator 104 Cabin vibration resonator (both sides) 105 Cabin heating and demisting controls 106 Tie-down shackle (both sides)
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