Re: Cruising speeds - 727, 737, 767, 747

Date:         29 Jun 97 16:47:04 
From:         edhugo@aol.com (EDHUGO)
Organization: AOL http://www.aol.com
References:   1
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    Mach number varies with temperature, not headwinds or weight.

B727 - Mach .78
B737 - Mach .76
B767 - Mach .82
B747-200 Mach .84
B747-300/400 Mach .85

Those are the recomended Mach speeds. Every airline can modify
that depending on their company policy.