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Old 01-21-2009   #12 (permalink)
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Re: The X-43A is the fastest ever, but only half fast enough to achieve LEO

Quote:
Originally Posted by CraigD View Post
I’m a aerospace vehicle enthusiast,
Slightly OT, but since the OP asked about intakes, I think my question has slight relevance.

I'm a great enthusiast of the SR-71/Oxcart program and have on more than one occasion read that at normal cruise speed more than, I think it's about 70%, of the thrust is generated by the intake cone of the engine. There has been some declassification of data and documents on the program the last couple of years, but I still fail to find any explanation of this intake cone statement, thus am at a loss to understand how it is possible.

So Craig can you explain, or better have links to some info?


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