Quote:
On 2002-08-21 21:13, SAMU wrote:
If we assume that its speed as reported is 2200mph ASL then at performance altitude of 85,000 ft it is above 90% of the aptmosphere so its ground speed would be ten times more than its air speed thus 22,000 mph which is orbital speed.
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Er, is this right? If the atmosphere is 1/10 as thick as sea level you can go 10 times as fast as you can at sea level?
I ain't no aeronautical engineer, but it doesn't sound right to me.