On the afternoon of October 14, 2005, astronaut Fei Junlong performed 4 "forward rolls" in the Shenzhou-6 spacecraft. It took about 3 minutes (the spacecraft flew 7.8 kilometers per second). A "somersault" is equivalent to how many kilometers you have flown.
2005年10月14日下午，航天员费俊龙叔叔在神州六号飞船内做了4个"前滚翻"，用了大约3分钟(飞船每秒飞行7.8千米)，费俊龙叔叔这4个"跟头"相当于飞了多少千米．
<result>1_248</result>