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Search: Posts Made By: what next
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Forum: Rumours & News
5th Nov 2014, 15:32
Replies: 281
Views: 222,256
Posted By what next

Against nothing. In order to maintain orbit, you...

Against nothing. In order to maintain orbit, you have to travel at 7.7km/s. Speed = distance / time. The distance to cover is the circumference of the earth (radius + 200km to stay outside the...
Forum: Rumours & News
5th Nov 2014, 14:37
Replies: 281
Views: 222,256
Posted By what next

In order to orbit the earth, you need no Mach...

In order to orbit the earth, you need no Mach number - which would be meaningless in vacuum or near vacuum - but a certain speed: The first cosmic speed, 27,800km/hr or 7.7km/s. The often quoted...
Forum: Rumours & News
4th Nov 2014, 13:17
Replies: 281
Views: 222,256
Posted By what next

That's correct for manned spaceflight. But...

That's correct for manned spaceflight. But stratospheric launches of rocktes first from balloons and later from aircraft are a reality. The Pegasus rocket has been in operational service since the...
Forum: Rumours & News
4th Nov 2014, 11:25
Replies: 281
Views: 222,256
Posted By what next

That's of course difficult to tell at this stage....

That's of course difficult to tell at this stage. When I studied aerospace engineering in the 1980ies, the Space Shuttle was just becoming operational. But it was generally agreed, that the next step...
Forum: Rumours & News
3rd Nov 2014, 14:30
Replies: 281
Views: 222,256
Posted By what next

Exactly. And I don't believe for a second that...

Exactly. And I don't believe for a second that the switch selection the may have lead to the feathering of the tailplane was done by mistake. A little way up someone posted the credentials of the...
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