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Contents • • • • • • • • • • • • • • • • • • • • • • • • • History [ ] Before 2000 [ ] During, a tremendous amount of time and effort were put into researching high-speed, predominantly by the. [ ] After the war, the US and UK took in several German scientists and acquired various military technologies through, including technology surrounding rocket engines. The attained in 1947 and, by the early 1960s, rapid progress towards faster suggested that operational aircraft would be flying at 'hypersonic' speeds within a few years. Except for specialized rocket research vehicles like the and other rocket-powered, aircraft top speeds have remained level, generally in the range of Mach 1 to Mach 3. In the 1950s and 1960s a variety of experimental scramjet engines were built and ground tested in the US and the UK.
In 1958, an analytical paper discussed the merits and disadvantages of supersonic combustion ramjets. In 1964, Drs. And Gordon L.
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Dugger submitted a patent application for a supersonic combustion ramjet based on Billig’s Ph.D. This patent was issued in 1981 following the removal of an order of secrecy.
In 1981 tests were made in Australia under the guidance of Professor Ray Stalker in the T3 ground test facility at ANU. The first successful flight test of a scramjet was performed by the Soviet Union in 1991. It was an axisymmetric hydrogen-fueled dual-mode scramjet developed by, Moscow in the late 1970s. The scramjet flight was flown captive-carry atop the that included an experimental flight support unit known as the 'Hypersonic Flying Laboratory' (HFL), 'Kholod'. Then from 1992 to 1998 an additional 6 flight tests of the axisymmetric high-speed scramjet-demonstrator were conducted by CIAM together with France and then with NASA, USA. Maximum flight velocity greater than Mach 6.4 was achieved and scramjet operation during 77 seconds was demonstrated. These flight test series also provided insight into autonomous hypersonic flight controls. Wimbledon women's singles live.