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Aviation History
1956
1956 - 0720.PDF
720 FLIGHT, 8 June 1956 deHavillandD.H.UO. MILITARY AIRCRAFT, 1956 Fighters MULTI-SEAT, CARRIER-BASED from which these extracts are taken: "The interior is pressurized andair-conditioned, and is relatively roomy and pleasant. The pilot sits well up on the port side and has a superb view, particularly to port;the observer sits slightly behind and lower down and, although he has side and roof windows, can probably learn more about what is goingon by studying the numerous tools of his trade. . . . "There seems to be some justification for claiming that the 110 ismore manoeuvrable at transonic and supersonic speeds than any other aircraft. . . . Mach numbers well in excess of unity have been recordedon almost every recent flight, and rate of roll and turn are extremely high throughout the top end of the speed range. The entire flying-control system is hydraulically powered—even the rudders—and, in the air, the new all-flying tailplane behaves as a very powerful one-pieceslab. It has not been found necessary to vary the tailplane gear-ratio for either end of the Mach scale. "At the bottom end of the scale, the slow-speed control is first classin every respect, the drooping outer leading edge—which incurred no measurable drag penalty—being of assistance. The stall is all that astall should be, straight and 'square' and with plenty of natural warning. Lowering the massive Fowler flaps unlocks what looks like an elevatorfrom the slab tailplane, so that the trim change can be automatically cancelled out. The tail, nevertheless, retains great power for rounding-out, and the final touch-down is slower than that for the Sea Venom. Anti-skid braking will be a standard fitting." Armament is four 30 mm Aden guns and under-wing air-to-air guidedmissiles. The guns are mounted beneath the cockpit floor on a demountable pack and ready access is provided for the ammunitionloader and gun-hoist winch. The operational version of the D.H.I 10 now in production is knownas the Mk 20 (no name has yet been chosen) and will probably incor- porate a more advanced mark of the Rolls-Royce Avon than that atpresent installed. Among comparatively recent developments is the repositioning ofthe dive brake, which is now in the form of a single large surface under the forward fuselage. The large internal fuel capacity can be aug-mented by two external plastic tanks. Advanced A.I. radar and gun- laying equipment are, of course, provided. Span, 51 t; length, 52ft. de Havilland Sea Venom FAW.21 The FAW.21 version of the SeaVenom will remain as the standard all-weather fighter of the Royal Navy until the introduction—many months hence—of the D.H.I 10. Itis a naval counterpart of the R.A.F.'s N.F.3 and has power-folding wings, catapult gear, provision for rocket-assisted take-off, and, ofcourse, an arrester hook. Armament is four 20 mm guns. The Royal Australian Navy uses a similar machine, designated FAW.53, and adeveloped version (Aquilon) is built under licence in France (a.vX Span, 41ft 9in; length, 35ft 3in. U.S.A. Grumman F9F-8T Cougar More than a hundred of these two-seatCougars are to be built for the U.S. Navy and the type will be used "as an operational fighter in addition to jet trainer missions." Firstdeliveries will be made this summer, and it is expected that about one-half of the machines will be assigned to fleet squadrons and theother half to the U.S. Navy's Training Command. Armament is two 20 mm guns and there is provision for under-wing stores and for flightrefuelling. FRANCE S.N.C.A.S.E. Aquilon (Two-seater) The first and second order forAquilons covered the two-seat variant, generally similar to the de Havilland Sea Venom. The powerplant is a Fiat-built de HavillandGhost 48 Mk 1, and S.N.C.A.S.O. ejector seats are fitted under a sliding canopy. Armament is four 20 mm guns, maximum speed over560 m.p.h., and service ceiling about 49,000ft. de Havilland Seo Venom FAW.21.
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