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Aviation History
1945
1945 - 1946.PDF
OCTOBER 4TH, 1945 unit also had austenitic steel hollow blades for the turbine. In each case the multi-stage compressors were titted with duralumin blades. It was reported to me that certain German axial flow turbine-compressors tended to stall, and cut out alto- gether, due to instability of combus- tion. A number of aircraft have been lost from this cause. Most of them were of the 10,000 r.p.m. order. The HE/'Hirth, of 2,860 lb. thrust, was the most powerful tur- bine, but it was not ready for ser- vice. Only twenty had been pro- duced. Projected types of turbines and O.E ARMOUR SUUCM£AO ROCKET TUBES CABi.ES OFEfl FUSELAGE f*ft, AS PILOT JIJMPS JETTl FIRING The Natter was a rocket-propelled interceptorintended for attack on bomber formations. The rockets in front formed the missiles. The ingenious Bri-tish Bailey bridge has proved of enormousvalue in restoring communications.This is a 3-tier type on the Autobahnnear Bielefeld. The TA152H was a high-altitude reconnaissance air- craft with pressure cabin.A Jumo 213E engine was fitted. Power boostingchemicals were used, which gave a maximum speed of472 m.p.h. at 41,000ft. A glimpse of the Maschinenfabrik Deutschland, typical ofRuhr factory devastation. those under development were to be far more powerful. One B.M.W., for example, had a 12- stage axial flow compressor, an annular combustion chamber and a three-stage turbine, not unlike the design envisaged in my book, "Gas Turbines and Jet Propulsion for Aircraft," two years ago. It was hoped to attain 7,500 lb. static thrust. Brown Boveri were developing a closed circuit turbo unit. Junkers, too, had a unit of some 6,000 lb. thrust on the way, with a weight of 4,400 1b. and also a turbine unit driving con- tra-rotating airscrews. B.M.W. likewise adopted air- screw drive for one of its latest turbo-units. Some notable experiments had been started on ceramic tur- bine blades—an extremely important development which should be continued. Rockets and Jet Helicopters Possibly it was in rocket propulsion that the German technicians showed the greatest advances. The con- sumption of fuel was phenomenal and the range short, but the speeds-were extremely high—up to 600 m.p.h. The HWK2509 unit installed in the Me 163B weighs only 365 lb. and develops a thrust of 3,300 lb. Fuel consumption exceeds 1,000 1b. per minute, but the unit can be throttled back to give a maximum thrust of 220 lb. To increase range, the pilots resorted to gliding between high-altitude speed bursts. Looking ahead, a
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