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当今,无论是民用航天还是军事航天,遇到的最棘手问题是运载工具力不从心。所用的一次性运载火箭和航天飞机成本高、可靠性低。今年1月,美国以可靠性极高而闻名的德尔它-2火箭在发射美国空军新型导航卫星时,因故障导致“箭毁星亡”。所以,这更坚定人们一定要研制出既经济又可靠的新型天地运载工具的决心。经过大量研究与试验表明,重复使用的单级
Today, the most thorny issue encountered by civil space and military space is the inability of the means of delivery. The use of disposable launch vehicles and space shuttles has high costs and low reliability. In January of this year, when the United States launched the US Air Force’s new navigation satellite, the delta-2 rocket, which is known for its high reliability, caused “star destruction” due to failure. Therefore, it is more determined that people must develop the determination of a new type of vehicle that is both economical and reliable. After a lot of research and experiments show that repeated use of a single stage