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The Junkers Jumo 004 was the world's first production turbojet engine in operational use, and the first successful axial compressor turbojet engine. Some 8,000 units were manufactured by Junkers in Germany late in World War II, powering the Messerschmitt Me 262 fighter and the Arado Ar 234 reconnaissance/bomber, along with prototypes, including the Horten Ho 229.
The first German jet engines built during the Second World War used a mechanical APU starting system designed by the German engineer Norbert Riedel.It consisted of a 10 horsepower (7.5 kW) two-stroke flat engine, which for the Junkers Jumo 004 design was hidden in the engine nose cone, essentially functioning as a pioneering example of an auxiliary power unit for starting a jet engine.
It was produced in Victoria in Nuremberg and served as a starter for the operational German Junkers Jumo 004 and BMW 003 jet engines, placed on the centreline of each of these, and was also meant for use on the Heinkel HeS 011 experimental jet engine, but relocated above the intake passage within a Heinkel-designed prefabricated sheet metal ...
The 003 and the Junkers Jumo 004 were the only German turbojet engines to reach production during World War II. Work had begun on the design of the BMW 003 before its contemporary, the Jumo 004, but prolonged developmental problems meant that the BMW 003 entered production much later, and the aircraft projects that had been designed with it in ...
In larger aircraft, flat-twin engines have been used in auxiliary power units (APUs). A notable example was made by ABC Motors in the 1920s and 1930s. [ 37 ] During World War II, the Riedel firm in Germany designed and manufactured a two-stroke flat-twin engine as jet engine starter motors for the Junkers Jumo 004, BMW 003 and Heinkel HeS 011 ...
Junkers Jumo 004, the first production turbojet in operational use. Note the starter pull-start handle housed in the center of the intake nose bullet. Diagram of a typical gas turbine jet engine Frank Whittle Hans von Ohain. The turbojet is an airbreathing jet engine which is typically used in aircraft.
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[3] [4] The design was of a high-wing mostly conventional-looking aircraft that was powered by a pair of Junkers Jumo 004 turbojet engines, one being located underneath each wing. [ citation needed ] Arado estimated that the E.370 would possess a maximum speed of 780 km/h (480 mph) at 6,000 m (20,000 ft), an operating altitude of 11,000 m ...