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Re: Robert M. Edholm - test pilot McDonnell - sound barrier?
Thanks for info. It is my hunch here that 'airplane' as written on Edholm's grave is seen as opposite to Yeager's air-launched X-1 'rocket plane'.
Edholm in the XF-88 Voodoo therefore may indeed have been the first man to have broken the sound barrier after a conventional runway take-off.
Leendert
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