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Old May 29th 12, 06:34 PM posted to rec.aviation.soaring
BruceGreeff
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Posts: 184
Default Angle of incidence

That is indeed the way to do it - then the negatice flap puts the
ailerons at low angle of attack and you have excellent roll control.

Landing flap and positive flap is a recipe for - don't be pointing at
something you were hoping to reuse...

On 2012/05/29 11:14 AM, Z Goudie wrote:
At 07:16 29 May 2012, BruceGreeff wrote:

Have learned to bring the big Kestrel in a lot slower and the landings
are a lot less exciting. Still have a way to go. She can be landed in an
incredibly short distance if you have that approach speed nailed.

In my case the magic number is 100m later - and that is with landing flap
and half airbrakes.

At low speed the ailerons are less powerful, but a little airbrake
increases effectiveness by diverting airflow over the controls so you
should have more than enough control - you are trying to fly straight -
not do aerobatics.


In my 19m Kestrel used to use full landing flap and full negative flap
(separate levers!) More than enough drag from the inboard flaps plus
brakes and plenty of roll control from the outers until it came to a halt.



--
Bruce Greeff
T59D #1771