Gentlemen;

A 'Hollywood celeb' the other day stated he flew his P-51 Mustang at 40,000 feet.

Ah; @ 20,000 feet there's barely enough oxygen to breath (humans), right.

So; Assuming he had breathing equipment installed for this, would the engine still run that high ;\) (at that altitude)????

BTW: The Merlin & Rolls Royce engines are considered inlines.

John M.....

John M., I.I. #3370

"There are no shortcuts to any place worth going". -Anon