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Old September 28th 06, 07:40 AM posted to rec.aviation.piloting,rec.aviation.student
Roger (K8RI)
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Default Why Isn't Vx The Best Rate Of Climb?

On Tue, 26 Sep 2006 17:35:51 -0400, Andrew Gideon
wrote:

On Tue, 26 Sep 2006 11:29:52 +0000, Dylan Smith wrote:

Not quite - minimum sink (the speed at which you'll lose altitude at the
lowest rate) is slower than best glide.


Right. Which makes best glide and Vy analogous and best loiter and Vx


Depends on what you are flying. in the Deb Vy is a tad slower than
best glide which gives 500 to 600 fpm while Vx which is a lot slower
gives the express elevator down at about 800 fpm or a tad more.
Gliding at Vx gives me a very fast and steep descent for short field
landings and a bunch of power. In the Deb Vx is definitely not going
to keep you up there longer. Maximum range under power is about the
same as Vy.

analogous.

- Andrew

Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com