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Aviation History
1956
1956 - 1142.PDF
Commonwealth Aviation Above and right, CF-100 Mk 5. CANADA Avro CF-100. Latest variant of the CF-100 long range all-weather day and night fighter is theMk 5, a high altitude version which can be distinguished by its increased span—parallel chord extensions three feet long have been added to each "wing tip, and the tailplane span has beenincreased as well. In order to attain a very high altitude performance—the operational ceiling is claimed to be over 50,000 feet—the ventral gun or rocket pack has been removed. Apart from the Avon-powered prototype aircraft, Canadian Orenda turbojets have been usedin all marks of the CF-100. The first series to be built in large numbers was the Mk 3 armed with eight 0.5in guns—these are now trainer versions, designated Mk 3T. An important variantnow in service is the Mk 4, which carries its main armament of 104 air-to-air rockets (or a lesser number of guided missiles) in wing-tip pods, although provision is made for a ventral gunor rocket pack as fitted to the Mk 3. The Mk 4 order for 510 aircraft is now complete, and the Mk 5, ninth version to be built since the prototype flew in January 1950, is now in production. The makers claim that the CF-100 is one of the best all-weather operational fighters in theworld. This is substantiated by performance figures quoting the range (with wing-tip tanks) as being in excess of 2,000 miles, with an endurance of over five hours at altitudes above 45,000ft.The aircraft is known to be capable of exceeding Mach 1 in a dive. CF-105. Expected to fly next year, the CF-105 will be a two-seater of acute delta configuration.The first few aircraft will be powered with two J75 turbojets, but later aircraft will employ integral after-burning Iroquois engines delivering a total thrust approaching 60,000 1b.Described as "virtually automatic," the CF-105 should be capable of interception at Mach 2 in all weathers, armed with air-to-air guided missiles. Work on the prototype is progressing. CanCar T-34A. The last of an order for 125 Beechcraft T-34A primary trainers has now beencompleted. Designed to fulfil the same role as the Harvard, but at lower cost, the aircraft was developed from the Bonanza and is known as the Mentor. Construction in Canada was under-taken in 1953 by the Canadian Car and Foundry Co., who built 100 aircraft for the U.S.A.F. and the remainder for the R.C.A.F. Powered by a 225 h.p. Continental, the Mentor is of all-metal construction and features a retractable tricycle undercarriage and steerable nosewheel. The Mentor is now in service in the U.S.A.F. and U.S.N., Chile, Colombia and Japan. Canadair CL-28. The largest aircraft ever to be built in Canada, the CL-28 is a much-modifiedversion of the Britannia. The fuselage in particular has been completely redesigned by Canadair for low level "submarine detection and attack" and is no longer pressurized. In order to provide24-hour endurance at all altitudes, the powerplant installation and nacelles have been redesigned to accommodate Wright Turbo-Compound piston engines in place of the Proteus Turboprops. Manned by a crew of 15, the aircraft will carry a variety of armament in its two weapons baysand 21 different radio and radar installations. Beneath the glazed observation station in the nose there will be a large radome, and the installation in the extreme tail of a magnetic airbornedetector boom will increase the fuselage length from 114 to 122ft. Firm orders for 25 aircraft for the R.C.A.F. have been placed. First deliveries are expected in early 1957. CL-44. For some while, Canadair have been studying a military transport and commandversion of the CL-28, designated CL-44. The aircraft will be pressurized and turboprop powered. Bristol Proteus, Orion, or Rolls-Royce Tyne engines are alternatives under consideration. 288 Powerplant .Span ... LengthGross weight Max. speed .. FLIGHT ... Two Orenda 11 ... 56ft (less pods)54ft ... about 37,0001babout 660 m.p.h. Powerplant ... Continental O-470-13Span 32ft lOin Length 25ft lOinGross weight 2,9001b. Max. speed ... ... 190 m.p.h. Above, T-34 Mentor. Below and left, CL-28. SpanLength Gross weightMax. speed Four Wright Turbo-Compound 142ft122ft 150,000 1b350 m.p.h.
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