Re: 42,000 feet

Date:         25 Mar 97 03:38:10 
From: (Don Stokes)
Organization: Victoria University of Wellington
References:   1 2 3 4
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In article <>,
Terry Schell <> wrote:
>If you were willing to decend at Vne... you could drop like a stone.
>Does anyone know what Vne on the concorde is?  If it is mach 3 and the
>L/D at that speed is probably around <guesstimate> 5/1, you could get
>down in 113 seconds.

I can't remember the exact numbers, but Concorde's Vne is something like
Mach 2.2.  Unlike most airliners, the limitation is heating rather than
transonic buffetting.  Concorde makes use of fairly conventional
materials and pushes them close to the limit -- as it is the aircraft
lengthens significantly due to thermal expansion during flight.

Don Stokes, Network Manager, Victoria University of Wellington, New Zealand. +64 4 495-5052 Fax+64 4 471-5386