天鹰A4D SKYHAWK

310 FLIGHT DOUGLAS A4D-2 SKYHAWK (Ona 7,800 Ib-thrust Wright J45-W-4 turbojat) Dimension!: Span, 27ft 6in; overall length, 39ft 1in (increased to 41ft 11in when refuelling probe is extended); height to fin t ip, 15ft 2in. Other geometrical data: wing area (gross). 260 sq f t ; area of horizontal ta i l , 46.85 sq f t ; area of vertical ta i l , 50 sq f t ; wing root chord, 186in: sweep angle, 33 deg at 25 per cent chord. Weights: Basic operating weight, not available; normal gross weight, using petrol, 14,4001b; maximum weight of A4D-2. using JP-4, 15,5OOIb; internal fuel capacity, 770 U.S. gal. Performance: Maximum level speed, clean, 587 knots (680 m.p.h.); maximum range, approximately 1,000 nautical miles on internal fuel. A4D SKYHAWK . . . 1 Packard-Bell packaged communica- tions and navigation equipment 1 Dielectric panel 3 Detachable nose, two latches 4 Heavy-gauge (0.1 in) skin, no stiffeners 5 Instrument panel support frame 6 40 Ib ejection seat 7 Pilot release handle 8 Harness locking handle 9 Face-curtain handle 10 Six seat-rail rollers 11 Cockpit forward bulkhead 12 Cockpit rear bulkhead 13 Pressure head 14 Gunsight 15 Art iculated control column 16 Hanging rudder pedals 17 Rudder control tubes 18 Left-hand console (power, under- carriage, flaps, etc.) 19 Shroud 20 Canopy control (canopy bungee- loaded) 21 Right-hand console ( l ight ing, radio, navaids) 22 Hook control 23 Forward-retracting,pre-shortening, nose leg 24 jack 25 Steering cylinder 26 Shortening link 27 Wheel-well blister in cockpit floor 28 Single nosewheel door 29 Equipment bays each side of leg- well (air-conditioning, control bell- cranks, fuses) 30 Aeroproducts emergency ram-ait turbine, driving 1.7-kVA generator 31 Self-sealing fuel cell 32 Fuel-cell dished to accommodate 9-kVA al ternator and General Elec- t r ic ball-piston drive 33 Gravity fuel fillers 34 Aerials 35 Air intake to Wr ight J65-W-4 (Sapphire) engine 36 Engine front steady point ^ 37 Main engine mountings 38 Oi l tank •:-• 39 Accessory drive : v 40 Feed pipes (36) 41 Combustion section 42 Turbine section 43 Plain tailpipe (no afterburner) 44 Oi l breather 45 Engine accessories access panel 46 O.OOSin stainless-steel shield bonded to wing skin 47 Fuselage break-frames 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 1958%20-%200296.pdf 1958%20-%200297.pdf