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We had a lot of fun
setting the ailerons on a Libelle at the Form 2 course at Bathurst last year
(also on our club Junior). Ater adjusting this and that we were chasing
our tails, eventually we went beck to the drawing board, set all pushrods back
to neutral (middle of the range) and we were close to the mark. A few
adjustments later we were within tolerance. It requires more thinking than
adjusting and it helps to have a soft toy handy (to strangle or punch - reduces
wear and tear on aircraft and helpers).
Whether or not it
helps or hinders performance and handling is another matter, I like to think the
manufacturers got it right.
Cheers,
Ben
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
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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