REFLECTOR: Canard incidence
Al Gietzen
ALVentures at cox.net
Fri Oct 6 11:58:49 CDT 2006
Im getting too much lift on the canard, and it stalls at too high a speed
on approach. I was surprised, because the incidence gage is exactly on
center when the plane is level. I guess it is too late to be annoyed to
find that I shouldnt be surprised, because the WingCo canard has a 8-9
wider span, and it has more upper surface camber. But youve got to wonder
why I wasnt provided with an appropriate gauge, or at least warned that the
incidence may need to be reduced, you know; a few years ago before it was
all fitted in and painted.
Anyway, I suspect Im not the first to have to do this, so thought Id see
if there are any tips I should know. Were seeing about 1 ½ trailing edge
up at 175 kias with about 400 pounds in the 2 front seats, and it is feeling
like incipient stall on approach with gear down when below about 90 kias,
and only about 1/2 trailing edge down on landing (hot landing). Clean stall
(buffeting) is just below 70 kias, and 1 ½ - 2 trailing edge down. I
assume it is a matter of shimming the attach points, and fitting everything
else up. Of course it would be nice to know how much, or at least a good
starting point. Or is there some easier solution?
Thanks,
Al
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