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Aviation History
1960
1960 - 0048.PDF
Sparrow j (2) Falcon (2) Sidewinder (2) Bultpup Zuni pack (2 x 4=8) 2 75in FFAR (24) O.SOin gun pack (2) O.SOtn gun pack (4) T-171 "Galling" 20mm Bombs. 500 Ib (2) Bombs. 1.000 1b (2) Bombs. 2.000 Ib Napalm. 750 Ib Recon. pod 200 U.S. gal tank pack Sparrow 3 Sidewinder Falcon Bullpup 0 50in gun pack (4) Z"ni pock (4) T-171 "Gatling" 2.75in FFAR (12) 2.7Sin FFAR (24) 2in FFAR (24) 0 Win gun pack (2) 7.62mm gun pack Bombs. 500 Ib Sidewinder Falcon 2.75ln FFAR (11) 2in FFAR (241 20mm pack Bombs. 500 Ib Bombs. 1.000 Ib Napalm, 750 Ib Recon. pod 150 U.S. gal tank 200 U.S. gal tank Bombs. 750 Ib Napalm, 750 Ib External stores can be carried on the centreline, and at wing stations 83, 111 and tips. This illustration shows possible loads at each location "Freedom Fighter" . . . forward of the compressor entry, which provides sufficient extrathrust to boost the N-156F's top speed to well over M2. Weight of the J85-5 is but 5251b; it is 21in in diameter and104in long over the afterburner. This makes its removal and installation very simple, with a built-in overhead track andsimple two-point mounting in the mid-fuselage. Contributing to the ease of installation is the accessory package, containingthe hydraulic pump and electric generator. This is mounted on the airframe and driven through a universally mounted shaft. - r ^r FLIGHT, 8 January 1960 The engine bay is cooled from a series of static bleed portsjust forward of the compressor entry, while the engine itself is cooled by air bled from the main intake ducts. Originally it wasintended that for ground running that air would be sucked for- wards from the exit holes in the last frame. However, it wasfound to be much more efficient to have uni-directional flow, and ejector nozzles were added to the tail end of the aircraft toeffect this. As a result, production airframes will differ in detail from the three aircraft already built in regard to location of thedrag-chute compartment. A cartridge starter is fitted to the right- hand engine; bleed air is then used to start the other. Both can beStarted or motored by low-pressure air from a ground source. As alternative powerplants, the Pratt & Whitney J60 (JT-12) andRolls-Royce RB.153 have been considered in detail, and can be made available upon customer request. Systems Fuel System: There are separate circuits for each engine, inter-connected by a cross-feed valve. No fuel is carried in the wing, the left-hand circuit being served by two dorsal cells and a forwardcell, while the right-hand is fed from a centre and aft cell. Both forward and aft cells incorporate an inverted-flight cell, tosupply the engines in all flight attitudes. Single-point refuelling permits pressure-fuelling of all tanks simultaneously, with pro-vision for manual filling of each cell when necessary. Total capacity is approximately 600 US (500 Imp) gal, all cells beingof bladder-type construction. Each tank has an AC-driven booster pump, but gravity feed is possible in emergency. Electrical System: This is of the three-phase, 320-480c/s 115/200V AC type, driving the booster pumps, fuel valves, trimming devices, flaps, air-conditioning and pressurization equipment.The two AC generators are of the 8kVA 6,300-9,600 r.p.m. air- cooled, self-excited type; each is driven from a separate gearboxprovided at the forward face of each engine, so that full electrical 1, Flap lever; 2, paired throttle levers, airbrake switch and press-to-transmit button; 3, ejection-seat arming lever containing firing trigger (both sides); 4, undercarriage emergency down; 5, engine startfna; 6. gunsight dimmer; 7, external lights; 8, armament selector switches; 9, stores jettison; 10, UHF radio; 11, landing ge pressure-suit demist controls; 36, pitot heating and engine anti-icing; 37, fuel transfer and cross-feed; 38, canopy jettison; 39, canopy-operating; 40, electrical system; 41, oxygen, autostabilizer, radio and other panels on side consoles; 42, circuit-breakers; 43, harness unlocking; 44, oxygen supply; 45, ejection-seat safety catch (height- adjustment switch beyond); 46, canopy demisting, breaks here when canopy opens (canopy is depicted in closed position). 1O
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