日本已决定研制一种新的三级固体运载火箭,它能把4400磅的有效载荷送入近地轨道。它标志着日本第三新的高技术一次使用运载火箭工程目前正在全国进行。这种新运载火箭长90英尺,有效载荷运载能力比美国的宇宙神F 大1000磅。日本将用它来发射近地轨道重型科学卫星和金星以及其它星球的星际探测器。新的运载火箭的第一次飞行确定在90年代初。预计它随后将用来发射一种和其它的国际卫星一起 Japan has decided to develop a new three-stage solid carrier rocket capable of delivering 4,400 pounds of payload into orbit. It marks Japan’s third new high-tech one-off launch vehicle project being conducted nationwide. The new carrier rocket 90 feet long, payload carrying capacity than the United States cosmic god F 1000 pounds. Japan will use it to launch near-Earth orbiting heavy science satellites and Venus and interstellar probes on other planets. The first launch of the new launch vehicle was finalized in the early 1990s. It is expected to be used subsequently to launch a satellite with other international satellites