Question:
An uncle of mine wants to know what the terminal velocity (top speed) of the Space Shuttle is just before it reaches its destination altitude in orbit? So far I only know that it can reach Mach 30 (as I saw on TV). It also occured to me that the Shuttle can reach a higher speed but never does because its travel distance to orbit (and fuel) isn't enough for it to actually reach its "potential maximum" (as I like to call it) speed.
Please give your answer in:
* km/h
* mph
* Mach
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Thanx everybody!
Answers:
i heard 17500 mph
The normal speed of a space shuttle in orbit is about 17,580 miles an hour. However, Challenger was traveling at a speed of about 18,000 miles an hour, at a height of 46,000 feet when she blew up, as she was attempting to leave orbit.
Columbia was more than 200,000 feet up (roughly 38 miles) moving at about 12,500 mph when she exploded over Texas. She had slowed quite a bit from orbit speeds and was continuing to slow when the desaster happened
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So orbit speed would be different than liftoff or re-entry speeds.
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The orbital speed is determined by the altitude that the Space Shuttle operates. The operational altitudes that most missions use is between 140-310 nautical miles.
The lower the spacecraft is, the faster it needs to go to maintain the orbit. Likewise, as the spacecraft flies at higher altitudes, less velocity is required to maintain its orbit.
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A minimum speed of about 17,000 mph is needed to "Break Gravity" and achieve orbit, but it is more complicated than that.
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im pretty sure the shuttle can reach app 21000 mph and orbit is 17,500 mph thats the orbit speed of earth due to our gravity any slower you would fall back into orbit and the escape speed is 11.2km/s (if you go that fast you go right out our orbit deep into space). or orbit speed is something like 8km/s and anything less falls back down to the surface.hope this helps
17500 mph/28,157.5 km/h/Mach 22 is the velocity that the current shuttle in space needed to escape earths orbit
to the person who said that challenger was going 18,000 mph when it blew up after 37 seconds, that is not correct considering that the escape velocity is as i have mentioned above
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