前言 H-2运载火箭计划已经在1985年开始执行。H-2是一种新型能满足90年代空间活动需求的一次性使用火箭。通过N火箭的成功研制,日本已经掌握了发射地球同步轨道卫星的技术。宇宙开发事业团做过很大努力,以求得到一个能满足日益增长的地球同步轨道发射任务需求的大型运载火箭。1986年8月,H-1火箭准备作首次发射。H-1能把550公斤重的卫 Preface The H-2 launch vehicle program was implemented in 1985. H-2 is a new type of disposable rocket that meets the needs of space activities in the 1990s. Through the successful development of the N rocket, Japan has mastered the technology of launching geosynchronous orbit satellites. The Cosmos Development Corps has worked very hard to achieve a large launch vehicle capable of meeting the needs of a growing geostationary orbit mission. August 1986, H-1 rocket ready for first launch. H-1 can weigh 550 kilos