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Old 04-01-2013 | 01:08 PM
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radfordc
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Default RE: Vanessa c.g. Rig: How to.


ORIGINAL: wphilb

I have a question about the use of this rig.

EXACTLY what do you ''level?''

The fuse thrust line or the incidence of the wing?

I have a Meister F4U that has a very difficult to determine thrust line after being covered and painted (the crutch which is also the thrust line is now gone) so I've been told to level the incidence of the wing, but the wing has a positive incidence of 3.5 degrees to the thrust line, so if I level the wing incidence, the thrust line is now NEG 3.5 degrees!?

Any thoughts?

Whit
Just to help beat this horse to death. What you really want if for the plane to hang at the same attitude that it flys in level flight. For many airfoils this amounts to about 3-5 degrees of angle of attack...so this is what you should try to get in the Vanessa rig. If you eyeball the plane and say "yeah, that's what I want it to look like in level flight" you should be close enough. If you aim for slightly nose heavy you will be safer than a little tail heavy.