Without laying my hands on the manual it's a bit difficult to say if up on both ailerons is correct, it could be to reduce tip stalling. However, I suspect this is not the case, BUT some (especially older) gliders do mix the aileron and elevator.
 
Is the "up" on the ailerons constant throughout the elevator movement range (ie does it reduce with stick forward movement)?
 
Regards
SWK


From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Richard
Sent: Thursday, 23 March 2006 5:32 PM
To: Discussion of issues relating to Soaring in Australia.
Subject: [Aus-soaring] Libelle performance

Hi
This is my first dip into the discussion group. Its been great watching from the sidelines.
I have a problem.
My Libelle aileron deflections were found to be out of whack mid season - max up deflection on right wing 15 deg rather than specified 20 +/- 1.
I got that sorted through Bob Fox at GCV.
Now in flight and in neutral setting each aileron is up about 3-4 degree is my estimate as viewed from the cockpit.
Now thinking about Form 2 this year and would like to know whether I should get this corrected and what sort of performance characteristics one can expect from such a setting, eg stall speed with my 75kg weight plus chute is about 38 knots; it settles very quickly after round out on landing and is hard to hold in a 45deg, 45 knot thermaling turn. Is there a compensating performance gain at higher speeds?
Any comments will be most welcome.
 
Regards
Richard Robinson
VH GBM
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