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Aviation History
1989
1989 - 2672.PDF
TUSHINO SHOW REPORT have been under test for three years. Canards give the fly-by- wire aircraft a "pitch improved" performance, Simonov says. Sukhoi has flown a naval Su-25 prototype from a ski-ramp, but Simonov expects any production variant to be launched using a catapult system. Despite rumours circulating in the West, Simonov maintains that Sukhoi is not working on a vertical-take-off naval aircraft. Kamov says that the new Ka-41 Hokum air-combat heli copter is still being flight-tested, and has yet to go into production. The first flight was made "before 1988", says Boris Sokolov, a senior Kamov designer. Following on from the Hokum, which Sokolov calls a "third- generation" helicopter, Kamov is working on "fourth-generation" types with new rotor layouts. One of these dispenses with the traditional contra-rotating main- rotors, and adopts a torque- cancellation system requiring no tail rotor. It is not similar to the McDonnell Douglas NOTAR system, says Sokolov. Among Mil's current projects, which soak up some 90 per cent of design capacity, is the new Mi-38 transport, due to fly in 1994 and described as the "most advanced Soviet helicopter yet". Mil hopes for Western certifica- O N £faru>%& wis/earn, 9etrce> H+S AVIATION HAVE A MANUFACTURERS TECHNICAL ASSISTANCE AGREEMENT WITH ROLLS-ROYCE. H+S AVIATION LIMITED, AIRPORT SERVICE ROAD, PORTSMOUTH, HAMPSHIRE P03 5PJ, ENGLAND. TELEPHONE 0705 694981, INTERNATIONAL +44 705 694981. FACSIMILE 0705 690415. TELEX 86403 HxS G.SITA PMEHXCR. tion of the helicopter. Tishchenko says that Mil is also designing an improved Mi-26—already the world's biggest helicopter—capable of carrying 22 tonnes: 2 tonnes more than the current model. The "hot-and-high" derivative will feature a new version of the D136 turboshaft giving either more power or greater fuel effi ciency, he says. It will also have a new rotor and improved systems. Mil is seeking a joint venture with a Western firm to obtain a small turboshaft in the 350 s.h.p.- 400 s.h.p. category to power a turbine version of the Mi-34 sport helicopter. The $325,000 Mi-34 flew three years ago, but will not go into production until 1991, says a Mil official. Tishchenko says that Mil is working on derivative military helicopters, but that no all-new military machine is being designed. Rival design bureau Kamov unveiled its Ka-126 light turbine- single for the first time in public. Kamov wants Western custom ers, and expects to have US certi fication within three years. Prod uction is under way in Romania. WESTERN LINKS Several other design bureaux joined Mil in proposing joint ventures with Western firms. Business and sport aircraft seem the main subjects, with Yakovlev proposing joint development of a business jet and Sukhoi revealing that it is in exploratory talks with Piper on .co-operation on busi ness and light aircraft. Other Western links include continuing talks between Rolls- Royce and Tupolev on powering a version of the Tu-204 medium- range airliner, and between Lotarev and British Aerospace on a Soviet-powered BAe 146, according to Soviet trader Aviaexport. Sukhoi, traditionally a military specialist, is at the forefront in developing Western links, and is in talks with Gulfstream and Dassault on business aircraft. Sukhoi is designing three supersonic transports: a business jet powered by conventional engines, which might be built in collaboration with Gulfstream; an experimental SST using liquefied methane and propane; and a "demonstrator" using liquefied hydrogen. 10 FLIGHT INTERNATIONAL 2 September 1989
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