航天飞机一般在载客时的飞行是几公里一小时？求大神帮助

NASA官方数据，中英文对照如下，是我自己翻译的。 The Space Shuttle speed goes from 0 mph to 17,500 mph in 8.5 minutes (this is when the external fuel tank separates from the Shuttle). Two minutes after launch the solid rocket boosters separate; at this time the speed is 3,438 mph and increasing rapidly. While in orbit the Shuttle's speed is 17,500 mph. When reentry or blackout occurs, the Shuttle is traveling at 16,700 mph. After reentry the Shuttle uses Earth's atmosphere to slow down. Landing speed ranges from 213 to 226 mph (343 to 364 kilometers). 航天飞机的速度可以在8.5分钟内从静止加速到17500英里/小时（此时外部燃料箱和航天飞机分离）。起飞后两分钟，外部固体燃料推进火箭和航天飞机分离，此时的速度为3438英里/小时，并且高速增加；航天飞机在轨的速度为17500英里/小时。当再入大气层或者进入黑障时，航天飞机的时速为16700英里/小时。再入段结束后，航天飞机会利用大气进行减速。最后着陆时速在213到226英里（即343到364公里每小时。）