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The BMW 003 utilized nearly the same starting method as its slightly more powerful Jumo 004 competitor: one of Norbert Riedel's 10 PS flat-twin two-stroke engines, installed within the engine's intake diverter as a mechanical APU, to get the 003's central shaft rotating for operation. An American military-authored post-war review of the BMW 003 ...
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 chamber was a can-annular design. Based on experiences with Junkers' can-type chambers (Jumo 004) and BMW's annular-type chambers (BMW 003), this design choice was successfully applied already during the Soviet period. 12 burner cans and 60 air pockets (integrated into inner and outer wall) were used, along with several more air canals.
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 BMW 003 that it was developed from provided only 7,800 N (1,800 lb f), less than a third of the Atar. The ATAR 101B introduced Nimonic turbine blades [ 2 ] and more stator blades as well as a number of changes to fix minor problems seen in the earlier experimental models.
During World War II, a boxer-twin engine called the "Riedel starter" was used as a starter motor/mechanical APU for the early German jet engines, such as the Junkers Jumo 004 and BMW 003. Designed by Norbert Riedel , these engines have a very oversquare stroke ratio of 2:1 so that they could fit within the intake diverter, directly forward of ...
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An interesting feature of all three German jet engine designs that saw production of any kind before May 1945 (the German BMW 003, Junkers Jumo 004 and Heinkel HeS 011 axial-flow turbojet engine designs) was the starter system, which consisted of a Riedel 10 hp (7.5 kW) flat twin two-stroke air-cooled engine hidden in the intake, and ...