Re: leaking planes Re: [really OT] (was: Re: [OM] OM] OT - Titanium)

[Gary Edwards]

"W. J. Liles" wrote: The shock diamonds indicate multiples of the speed of
sound.  Five diamonds would indicate an exhaust velocity of about Mach 5.

Sorry, Jerry, that's not how it works.  The number of diamonds that you see
will depends on the nozzle pressure ratio, the exhaust products, the
temperature, the angle of the sun, etc., etc., in addition to the exit Mach
number.

Gary Edwards


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