SPUTNIK / SCIENCE PHOTO LIBRARY SPUTNIK / SCIENCE PHOTO LIBRARY
First Soviet rocket aeroplane, the BI-1, on display struts at a museum. Developed by the Soviet Union, the full name of the design is the Bereznyak-Isayev (BI-1), after its designers. This single-seater experimental aircraft used a liquid-fuel rocket engine to create a jet thrust. It was designed in 1941, and test flown in 1942. The second prototype crashed in 1943. Only eight prototypes of this design were ever made. Photographed in 1969.
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