Ed,
Your notion to set the stab 1.5 degrees negative to the wing is a
good starting point - particularly if you are an intermediate pilot
with a more stable CG. You could also set it at 0 degrees and then
fly the plane while adjusting your elevator trim for a slow pull out
from a speed run. After you have flight tested that trim point you
can shim the stab to take any up or down deflection out of the
elevator. (You can do the same thing with a 1.5 degree setting but
it may be a bit more difficult to feel the right trim point.)
This should give you a good flying plane.
Hope this helps
Rick
At 05:15 PM 6/3/06, Ed Anderson wrote:
Looking for Advice on Wing Incidence.
I am looking forward to flying in the June ESL event at LISF on Long Island.
I hope to see some of you there.
I have a old yellow and blue Airtronics Legend that I am trying to tune up.
I picked up a wing incidence meter and am trying to set the wing/h-stab
incidence. I don't have a recommended spec so I am trying to shoot for
something reasonable.
If I set the stab at 0 degrees on my GP incidence meter, the wing measures
1.5 degrees below the zero. I guess that would be 1.5 degrees positive
relative to the stab, correct?
Any recommendations on a good starting target?
It used to be more but I added 1/32 in shims under the rear wing hold down
to raise the back of the wing about 6 months ago and it seemed to fly
better. So I bought the incidence meter and want to set it correctly.
Unfortunately I have no idea if I am right on the money or way off. I have
the build manual but there is no recommendation in the book.
Would a 0 degree difference between the wing and the stab be a reasonable
starting point? I am thinking that there should be some difference but I may
have too much.
I hope to be able to upgrade to a Mantis or similar by the end of the
summer, but for now this is what I have to fly. Until then, I will chalk up
the work I do on this plane as a learning experience. Any advice would be
appreciated.
Best Regards,
Ed Anderson
Long Island Silent Flyers
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