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Aviation History
1962
1962 - 1686.PDF
326 FLIGHT International, 30 August 196: de Ha v ill and Comet A total of 71 Comets have now been sold, the break even point on the programme being achieved with No 67. Three more are being built against the likelihood of further orders. There are basically three versions of the Comet 4, all powered by 10,2501b Rolls-Royce Avon 524 turbojets, which are running to overhaul lives gener ally well in excess of 3,000hr. The Comet 4 has the smallest capacity of the family, with seating for up to 81; but it offers the longest range, of 3,500 n.m. with full payload and fuel reserves. BOAC have 19, Aerolineas Argentinas have 6 and East African Airways 3. The Comet 4B, with a 6ft 6in fuselage exten sion and a shorter wing to increase speed and reduce tankage, was built for BEA, who have bought 14. Olympic Airways operate four more in consortium with BEA. The Comet 4C has the increased capacity of the 4B and the wing of the Comet 4; this is the version which has sold to the most customers: a total of 25 to Aerolineas, MEA, UAA, Mexicana, King Saud, Kuwait Airways and the RAF, the latter calling their five C.4s. de Havilland Dove Still in production after 17 years, the Dove is being ordered at a steady, if reduced rate. About six of the series 8 version have been ordered for executive use in the past year, and a further ten have been built or are on the production line against firm or anticipated orders. Well over 500 have been sold. de Havilland Heron Production of this executive and airline type, powered by four Gipsy Queen 30s, has now all but ceased, with four aircraft available off the assembly line for early delivery. More than 150 have been sold. de Havilland Sea Vixen Production of this potent all-weather and strike fighter for the Fleet Air Arm is now almost com plete, and the type has been in service since 1959. Powered by two Rolls-Royce Avon turbojets, it is supersonic in a shallow dive, and carries a crew of two and comprehensive interception radar and fire-control equipment. No guns are fitted, but four Firestreaks are carried on pylons, with large tanks or Bullpup strike missiles on additional pylons outboard oi the wing-fold hinge. Two retractable packs of 14 air-to-air rockets are mounted under the nose. A refuelling probe is standard, and a " buddy " refuelling pack allows one Sea Vixen to refuel another. de Havilland Trident Since the Tri dent's maiden flight in January two aircraft have flown some 250hr in trials which are aimed at full type certification and delivery to the first customer, BEA, in June 1963. A third aircraft is due to fly in time for the SBAC Display. BEA, who have 24 on order, will introduce the aircraft into full service at the beginning of the 1964 summer season, following a full programme of route-proving and crew training—and, no doubt, ad hoc revenue services—during 1963. The Trident 1C, with centre tankage, has become the basic member of the family. Maximum take-off weight of the 1C will be 115,0001b. Design strategy behind the Trident might be summed up as a 600 m.p.h. jet seating up to 100 at 34in pitch, with a 6,000ft take-off and " optimized" economics for the shorter de Havilland Trident I
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