日本空间活动委员会决定继续进行日本的航天飞机研制计划,这个计划可能要分为两个阶段。第一阶段是研究高度机动实验性空间飞行器系统中一个小型不载人飞行器的,要求研制一种双发动机,用液态氧或液态氢作为燃料。这个飞行器长14米,重2,536公斤,无人驾驶并有一个三角型小机翼。科学家们认为它需要9,000万美元,五年时间才能建成。根据设计方案它将在150-300公里的高度上飞行。 Japan’s Space Activities Committee decided to proceed with Japan’s space shuttle development plan, which may be divided into two phases. The first phase was to study a small unmanned aerial vehicle in a highly mobile experimental space vehicle system, which required the development of a twin-engine engine using liquid oxygen or liquid hydrogen as fuel. The aircraft is 14 meters long and weighs 2,536 kilograms, unmanned and has a triangular wing. Scientists think it needs 90 million US dollars, five years to build. It will fly at altitudes of 150-300 kilometers depending on the design.