Mailing List lml@lancaironline.net Message #18179
From: Bill & Sue <harrelson@erols.com>
Sender: Marvin Kaye <marv@lancaironline.net>
Subject: Re: [LML] Tip Speed Query
Date: Mon, 24 Mar 2003 08:23:30 -0500
To: <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
Subscribe (FEED) Subscribe (DIGEST) Subscribe (INDEX) Unsubscribe Mail to Listmaster