>BTW, on the SR-71, the airflow into the engines is always subsonic --
>even while the aircraft is flying at Mach 3+. Designed using a slide
>rule, in the late 50's. Pretty darn awesome! :-)
Yep, turbojets require subsonic airflow to run, hence the SR-71's
huge inlet spikes, designed by Ben Rich. For a fascinating account of
the SR-71's development (as well as that of the U2 and the F-117),
read Rich's book, "Skunk Works: A Personal Memoir of my Years at
Lockheed."
--mark
-- . . . . . mark bock KB1EXL markbvt_at_adelphia.net"A youth who can't hit a cathedral at thirty yards with a Gatling gun in three-quarters of an hour, can take up an old empty musket and bag his grandmother every time, at a hundred." --Mark Twain
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