Folding Your Wing
This is the critical moment of your Evo build. The
wing folding creates your wing section and so accuracy
is essential. If you've cut a very accurate base shape
for your Evo then you should have no problems with
alignment and final wing shape. If you haven't already
done so, try a test fold of the wing to see how the
two halves meet in the centre. Be careful not to let
the two glued surfaces contact each other or they'll
grab and you'll have to peel them apart!
If you're happy to go ahead with the folding and gluing
then read on.
Initial Fold Alignment and Initial 'Grab'
Take your aluminium ruler, or whatever you're using,
and then, as shown below use it to bring both sides
of your wing down equally. As you do this the wing
will start to adopt a curved section. About 140mm
or so back from the nose will be the highest point
of your wing. As you bring the two sides down, adjust
the position of the trailing edge fore and aft so
that this highest point will be about 25mm.
When you are satisfied that your wing has the correct
form then you should press down firmly all the way
along your ruler, moving it forward slightly to ensure
that the glue around the silencer area is grabbing.
With the glue initially grabbed you can now move on
to the wing clamping.