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Aviation History
1951
1951 - 1734.PDF
Vickers-Armslrongs Varsity T.I. Vickers-Supennarine Attacker DELIVERIES of the first Attacker deck- landing fighters to British Naval units are now well under way, and aircraft of similar type have been supplied to Pakistan. On .many occasions Attackers have been flown at a Mach number of 0825. A feature which contributes to the ease of landing is the lift-spoiler control which is used on the approach to vary the glide path. The cockpit is pressurized to a differential of 3'5 lb/sq in. Four 20 mm wing-mounted guns are supplied with 624 rounds of ammunition, and rocket projectiles or bombs up to a maximum weight of 2,000 lb may be stowed externally. The full range of fighter radio equipment, including V.H.F., I.F.F., beacon homing and radio altimeter can be fitted to suit operational requirements. Vickers-Supermarine Seagull THIS remarkably clean Griffon-engined amphibian achieves an unusually wide speed range, thanks to the variable-inci- dence wing, with interconnected full-span leading-edge slots and slotted flaps. For take-off the wing is set at the optimum angle and in level flight is adjusted to reduce hull drag. Originally the type was intended for Naval reconnaissance and fleet spotting, though the prototypes are equipped for air/sea rescue. The type is fully equipped for carrier operation, and the wings can be folded to reduce the breadth to 23ft 6in. Vickers-Annstrongs Valetta VARIANTS of the Valetta are the C.I military freight and troop transport; the C.2, a V.I.P. transport; and the T.3 flying classroom. The last-named is distin- guished by six astrodomes atop the fuselage. The main cabin has a total floor area of nearly 400 sq ft and a volume of 1,565 cu ft. Vickers-Armstrongs Varsity AMONG numerous features which dis- tinguish the Varsity from the Valetta is the nosewheel undercarriage. Complete facili- ties are provided for training in bombing, air navigation, bomb-aiming, and radio/ radar work. An underslung nacelle is pro- vided for the bomber-aimer-pupil, in- structor and twenty-four 25 lb practice bombs. Short SA/4. Westkmd Wyvem. Vickers-Armstrongs Valiant IF one had to choose an "aircraft of the year," that for 1951 would be the Valiant four-jet bomber. The first flight of this altogether remarkable machine was on May 18th. Regrettably, no technical de- tails are permitted, but the Air Minister himself has given an assurance that the Valiant will be superior to the twin-jet Canberra in range, speed, altitude and load- carrying capacity. His belief that it would give our country the lead in the jet-bomber field is certainly not ill-founded. The four Rolls-Royce Avon engines are buried in the roots of the back-swept wing, and each pair is fed from a common intake. The bomb bay is of very large dimensions and the fuselage, though of superb aerodynamic form, is very roomy. Beneath the cockpit section is a "blister" fairing which may be presumed to house special radar equip- ment. The nosewheel undercarriage has paired main wheels, retracting into the wing. Westland Wyvern ADOPTED by the Royal Navy as its standard single-seat deck-landing fighter, the Wyvern T.F.4 is a single-seater (a two- seater trainer version, designated T.3, has also been developed), powered with an Armstrong Siddeley Python turboprop driving an eight-blade Rotol contra- rotating airscrew. The wings can be hydraulically folded to an overall width of 18ft; they house four 20-mm guns, and beneath each, provision is made for a variety of external loads. It will be remem- bered that at the last S.B.A.C. Display a Wyvern went through a series of aerobatic manoeuvres while carrying a torpedo in addition to 16 rocket projectiles. In addi- tion to the Youngman three-position flaps, split flaps (used for landing) are fitted between the Youngman flaps and the ailerons, outboard of the wing hinge. The undercarriage is unusually robust and has a track of 14ft 5in. Vickcrs-Armstrongs Valiant B.I
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