Hangar 9 Piper Pawnee 40 ARF - Manual (Page 23)

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o Step 8
Attach the wing struts to the wing strut brackets using
4-40 x 1/2-inch socket head screws and 4-40 lock nuts.
Note that the longer strut is positioned toward the rear
(trailing edge) of the wing. Also note the airfoil shape of
the strut during the installation.
Leading Edge of Strut
o Step 9
Slide the 1/4-inch (4mm) piece of fuel tubing onto a strut
attachment pin. Prepare two pins for the attachment of the
wing struts to the fuselage.
o Step 10
Align the holes at the ends of the struts with the holes
in the fuselage bracket. It will be necessary to adjust
the length of the strut ends to attach the struts without
forcing them into position. Make sure that you will not be
inducing any twist in the wings when attaching the struts.
Section 3: Wing Attachment