LTD(IHI) is conducting development study of Air Turbo-Ramjet(ATR) engine, which is one of the most preferable candidate as an air breathing propulsion system of future space plane.
日本航空宇宙技术研究所和石川岛播磨重工业公司目前正在开展这方面的研究工作。
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The absolute hydrogen expansion turbine cycles of air-breathing combined turbo-ramjet engines has the advantages of good performances, simple constructions and reasonable arrangement of cycles.