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Old March 30th 05, 07:55 PM
John T Lowry
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"Mike Rapoport" wrote in message
ink.net...

"John T Lowry" wrote in message
ink.net...

"Chris W" wrote in message
news462e.4423$Tn.2163@lakeread06...
Can someone tell me if my thinking is correct here. First VLD is
the speed where there is the least drag on the plane right? So it
takes the least amount of power to maintain level flight at VLD, any
slower or faster in level flight requires more power? Now suppose
you are at an altitude where the fastest speed you can maintain is
VLD, would that mean that the plane can't climb any higher? Also
would that be a reasonable way to determine VLD, (i.e. climb as high
as you can and the indicated airspeed at that altitude would be
VLD)?

--
Chris W



Has anyone mentioned that you can't GET to maximum altitude with
finite fuel and finite time?

John Lowry
Flight Physics



Max altitude is reached with minimium fuel right before the engine
quits. You certainly can't reach max altitude starting with zero or
infinite fuel.

Mike
MU-2


Von Mises, p. 416: "It can be seen by simple reasoning that the ceiling
altitude cannot be reached within a finite time."

John Lowry
Flight Physics