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Aviation History
1958
1958 - 0825.PDF
FLIGHT, 20 June 1958 841 Commonwealth CA-2S Winjeel. Commonwealth CA-27 Sabre. Military Aircraft of the World . . . AUSTRALIA FIGHTERS AND FIGHTER/BOMBERS Commonwealth CA-27 Sabre Since 1951 the Commonwealth Air-craft Corporation has been co-operating with North American Aviation in the development and manufacture of an improvement of the F-86FSabre. The CA-27, as it is designated, has a Rolls-Royce Avon 20 turbojet (made by Commonwealth), rated at some 7,500/8,000 lb.Owing to the increased size of ducting and the rearward shift of the engine mounts, the fuselage has been completely redesigned. Anothermajor change is the adoption of two 30 mm Aden guns as standard armament. The bulk of the first order for 90 aircraft has been completed,and further CA-27s are now coming off the line for the R.A.A.F. In January, Commonwealth ordered more than $900,000-worth of F-86parts to support this continued output. Span, 37ft lin; length, 37ft 6in; gross weight, 17,000 Ib; max. speed,about 700 m.p.h. TRAINERS Commonwealth CA-25 Winjeel Designed as the standard basictrainer of the R.A.A.F., the Winjeel is a simple but rugged machine reminiscent of the Hunting Provost. The prototype flew eight years ago,and the bulk order, for 62 machines, was fulfilled during 1955-1957. The production CA-25 has a 450 h.p. Pratt and Whitney Wasp Junior,although there is a native engine—the Cicada—suitable for the type. An unusual feature is that there are three seats.Span, 38/t 7\in; length, 28ft 0\in; gross weight, 4,265 Ib; max. speed, 186 m.p.h.; stalling speed (full flap), 53 m.p.h. Avro L Arrow. CANADA FIGHTERS AND FIGHTER/BOMBERS Avro CF-100 During 1954-56 Avro Aircraft, of Malton, Toronto,manufactured the Mk 4 version of this big all-weather fighter at a rapid rate. The first Mk 4 flew in October 1953 and differed from its pre-decessors in having Orenda 9s or lls, rated at over 7,000 lb thrust each, more advanced radar fire-control (produced by Hughes in Culver Cityand shipped to Malton) and a new armament comprising 104 folding- fin rockets in wing-tip pods and eight 0.50in guns in a ventral pack.Over 400 4As and 4Bs were delivered. In October 1955 the first CF-100 Mk 5 was flown. This mark hasconsiderably improved altitude performance, obtained by adding a parallel-chord extension of some 3ft span to the tip of each wing and anextra portion of tailplane and deleting the gun pack. The resulting aero- plane is lighter than the Mk 4, and many Mk 4s are being brought up tothis standard. A contract worth $43m has been financed by the govern- ments of Canada and the U.S.A. to supply 53 Mk 5s to Belgium. TotalCF-100 deliveries amount to about 650. Now cancelled, there was once a plan to produce a Mk 6, with a new fire control suited to the Sparrow IImissile and with afterburning engines. CF-100 Mk 5: Span, 60ft lOin (over pods); length, 54ft lin; height,14/t din; gross weight, 33,600 to 36,000 Ib; max. speed, about 660 m.p.h. Avro CF-10S Arrow Potentially the fastest aeroplane in the Com-monwealth, the CF-105 is a long-range, supersonic ali-weather fighter for patrolling the vast reaches of the northern parts of the American con-tinent. It carries a pilot and navigator in tandem, has an armament of Sparrow II radar-homing missiles carried in an internal weapons bay ten feet in width, and is powered by two turbojets with afterburners.The first CF-105 Mk 1 was completed last October—it was fully des- cribed, with a cutaway drawing, in our issue of October 25—and flew onMarch 25. The batch of Mk 1 development machines are all well on the way to completion at Malton, and each is powered by twin Prattand Whitney J75s rated at about 23,000 lb apiece with afterburner. Inside the 77ft fuselage is space for a great amount of fuel, supple-mented by integral tankage within the thin but extensive delta wing. The engines are fed from variable-geometry lateral intakes and thecontrol system comprises ailerons and elevators carried on the wing and a conventional rudder, all hung from multiple hinges and irreversiblypowered (the dog-tooth leading edge is fixed). The main gear has tandem wheels and lies wholly within the wing when retracted. Production Arrows will be of the revised Mk 2 version, with morepowerful Orenda Engines Iroquois turbojets, each giving some 30,000 lb afterburning thrust. The aircraft has been planned as the vehicularportion of a complete weapons system, and all portions of the system, including a range of new support units, are coming into production forthe R.C.A.F. Airborne equipment includes the Astra I fire control, embracing search and lock-on radar, fire control (beam-riding included),automatic flight, navigation and communications. Armament includes four or six Sparrows, a range of tactical nuclear special weapons andother loads; there are no inbuilt guns. Materials and parts of the first 37 Mk 2s are already being delivered to Malton and squadron serviceis scheduled for 1961. Span, SOft; length, 77/t 9.7in (83/t with probe); height, 21/r 3in; wingarea, about 1,500 sq ft; gross weight, over 65,000 Ib; max. speed, about 1,500 m.p.h.
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