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1. 09:10 AM - Straighten Aileron Hinge Brackets Before Assembly (Snow, Daniel A.)
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| Subject: | Straighten Aileron Hinge Brackets Before Assembly |
--> RV9-List message posted by: "Snow, Daniel A." <Daniel.Snow@wancdf.com>
The 8 aileron hinge bracket halves are all stamped in the same direction and are
identical until the recess for the bearings are cut. There is a slight bend
that is created during the stamping process, and the halves are bent in the same
direction. As a result, the assembled halves still have the bend. When you
flip the hinges for the opposite wing, the bends are in the opposite direction.
In other words, if the hinges are bent in the outboard direction on one
wing, the hinges on the other wing will be bent in the inboard direction. This
in turn will cause one aileron to be too far outboard and the other aileron
to be too far inboard. Not only does this affect the symmetry of the two ailerons
with respect to the flaps and wingtips, it also results in the aileron pushrods
interfering with the rear spar in different ways. My suggestion is to
straighten the hinge halves prior to assembly, as they are very difficult to straighten
later.
Daniel Snow
RV-9A #91248 Wings finished, fuselage delivery this week
Jacksonville, AL
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