Veloce 400, Руководство пользователя, Страница: 11 / 160

Chapter 3 -
Wing
3.3 - Preparation of the rear stringer Page 6
3.3 Rear spar preparation
The rear spars are identical and interchangeable, however note that there are hard
points on the edges which will be located in the center of the wing. Select a rear spar for
the wing section you are building. Cut any extra corner material and remove all peel ply
and other non-structural manufacturing materials. Sand the corners of the fiberglass parts
to make them safe to handle (potential splinters and cuts from these sharp corners can be
very unpleasant – perform this operation when selecting the pre-molded parts for
assembly).
Locate the inner end of the selected rear spar. This is completed by identifying the
end of the spar where the spar core material is made with a 4-inch long phenolic section
(hold the spar against a bright light to identify the corners of this solid block and mark
the center). The center of this block must be positioned on the BL 24 where it will be
drilled for the rear spar pin. Position the rear spar in place along the rear section of the
wing casing with the open face pointing forward. Locate the rear spar carefully with the
rear face 1 ¾'' in front of the rear edge of the coating. Establish the relationship between
the reference lines between the spar and the coating by aligning the inner edge of the
coating with the BL 24 mark previously made on the spar.
Secure the spar in place with several clecos or small superbly threaded screws.
Position the rear rib sections on the rear spar at the appropriate reference stations and
mark the places where gluing will be performed as a reference for further surface
preparation. The rear rib flange must fit the rear spar without slack for proper placement
of the wing assembly components along the rope.