Abstract: Some discussion in present paper is diected at power plants which will probably be used in aerospace plane.The stress is put on advantage of LOX/Hydrocarbon/ LH tri-propellant rocket engines.

Key words: Space propulsion;Hydrogen oxgen engine;Multifuel engine

摘要： 本文对未来天地往返运输系统宜采用的动力装置方案提出一些看法,着重阐明液氧/烃类/液氢三组元推进剂发动机的优点。

关键词: 航天推进;氢氧发动机;多元燃料发动机