If the wing's on a plane grab the tip and flex it up and down. Wood wings can move some. Look for change of wood layer spacing along those lines. Is...
Good it helped. Keep an eye on the front and rear ski tab holes through the tunnel and bottom. They can crack there from stepping on and flexing the...
When we restored my PA-11 shop air blown through the old struts created a cloud of rust. That was after passing punch tests per AD performed before I...
Fly in cold and apply aileron. Observe both aileron cables adjacent to the lift struts. One can be looser than the other. I assume the ailerons offer...
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