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Aviation History
1958
1958 - 0297.PDF
7 March 1958 The drawing below depicts a standard production Douglas A4D-2 Sky hawk, powered by a Wright J65-W-4 engine. No attempt has been made to indicate underwing stores-loads (apart from a simple tank-outline on one wing), but the small inboard-profile drawing on the right, below, includes an envelope-outline for all possible combinations of stores which can be carried on the central pylon. The largest of these stores is the "Buddy" refuelling pack, which is 17ft long. The location of internal fuel is indicated by shading the areas concerned. 48 Aft-fuselage attachment bolts (4) 49 Silicone-rubber seal at firewall 50 Arrester-hook jack 51 Hook loads carried to rear spar 52 Forged frame carrying tail toads 53 Tailplane pivot point 54 Ta'lplane power unit 55 Rudder power unit 56 "Tadpole" rudder: central skin, external stiffeners 57 Tailplane skins: top .125in, bottom .160in, with ,312tn internal routed stiffener 58 Control cables in tubes 59 Air brakes €0 Single flap-actuator ' 61 Split ftaps 62 Wing/fuselage bolts 63 Spars machined from solid plate 64 Front spar bent after machining 65 Untapered wing skin (,064in) con- tinuous almost tip to tip 66 Z-section extruded stringers 67 Tip joint-rib 68 Entire inter-spar volume is integral fuel tank 69 Tank inspection panels, upper sur- face for better seal (by O-rings) 70 Automatic leading-edge slats, with fences 71 Port slat shown closed 72 Rails penetrate front spar . :; ' 73 Rail container in tank 74 Retractable catapult hooks 75 20mm Colt-type gun each side 76 Feed assisterdrums (gunsstaggered, starboard gun forward) 77 Ground air (starter) socket on belly (no internal starting possible) 78 Aileron control tubes 79 Undercarriage leg mounting on bottom boom, centre spar 80 Retraction jack 81 Long-stroke pre-shortening leg 82 Breaker-strut and jack 83 Wheel bay and door 84 Leg turns 90 deg to lie in under- wing fairings 85 Pylon; tank outline shown; Side- winder or Bullpup missiles, 1,0001b bomb, rocket packs: alternatives 86 Pylon fittings in wing 87 Turbulators (vortex-generators) 88 Servo'trim tab 89 Centre pylon: 300 U.S. gal "Buddy" refuelling unit, 3,000 Ib bomb, ground starter trolley; alternatives 90 Liquid-oxygen converter 91 Flight refuelling probe; accom- modation in this area
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