Mesazhi #18179 i Listės sė E-mailave lml@lancaironline.net
Nga: Bill & Sue <harrelson@erols.com>
Dėrguesi: Marvin Kaye <marv@lancaironline.net>
Lėnda: Re: [LML] Tip Speed Query
Data: Mon, 24 Mar 2003 08:23:30 -0500
Pėr: <lml>
 

51250 x 60 = 3,075,000 feet per hour or 582 mph.

Aren't we getting close to Mach 1?
 
 
Scott,
 
Yes, you're getting close. Mach 1 is around 600 knots (690 mph) depending on temperature. Your calculation of 582 mph would put you around M.84. The warmer it is, the faster mach 1 so for the same TAS of the blade tip, a cooler day would give you a slightly higher mach number, a warmer day a slightly lower mach number.
 
Bill
N5ZQ  LNC2  O-320  VA42  Fredericksburg, VA
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