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-7 to -10 isn't going to make much difference in
flight. If the latest manual says to use -7 then go for it.
The purpose of reflex flaps is to reduce drag (lets
you go faster) while giving up some lift coefficient. At higher speeds you don't
need that extra lift coefficient.
Reflex will also move the center of lift forward
causing a nose up force affecting the trim needs.
For landing, you give extra flap to increase the
lift coefficient (and the drag) so you can go slower without falling out of the
sky.
See attached file for more details.
Wolfgang
----- Original Message -----
Sent: Saturday, April 14, 2012 12:01 AM
Subject: L320 flap setting
I have the exact concerns
reported by Rob Stevens in Australia. Since the manual is vague on cruise
flap settings, can some experienced L320-360 fliers help us with what is the
best cruise settings? Is it -7deg. , -10deg., or somewhere else.
Since construction variances can create different “faired-in positions”, is
there an angle which can be measured from the top or bottom wing surface?
Can anyone explain the aerodynamic reasons for reflexed flaps? Rob and I
need help!
Ed Gray Dallas L360 N77ZG
XP360 Silver Hawk injection MT 3 blade prop Dual Dynon Skyview
SL30
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