In message M7Mqc.31369$Md.30236@lakeread05 - "Darrell"
writes:

I think that value should be 100 ft/sec. Mach one is about 600 Knots = 1
NM/Min. One NM = 6,000'. Divide 6,000 by 60 (seconds in a minute) and you
get 100, not 1,000.


I think you made a mistake at the very beginning:

600 knots = 600 MN/Hour = 600 NM/3600 Sec = 1/6 NM/Sec = 6000/6 ft/Sec =
= 1000 ft/Sec.

BTW, I think at sea level Mach 1 is around 660 Knots (at some "average"
temperature).

HTH,
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* Arie Kazachin, Israel, e-mail: *
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