An example of the completed surface
The wings will form a V shape when glued together as
indicated by the plywood wing struts. So we need to
sand the ends of the wings to have a “VERY SLIGHT”
angle. This angle only needs to be about 2 degrees as
shown below so just a few rubs of the sandpaper is
adequate.
Note: if you hold the wings together at this stage there will be a large gap in the middle, but this
gap will disappear when the leading and trailing edges are bent.
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To give the wings an airfoil shape we need to bend
them along the half cut lines. Support the wing on
the edge of a table and use a ruler to evenly bend
the wing at both of the half cut lines.
Bend it down about 30 degrees till you hear the
foam crack.
Glue 3 ribs in place under each wing. The notches
indicate the position of each rib. Make sure the ribs
run at 90 degrees to the leading edge of the wing.
The side of the rib with the three straight edges is
glued to the wing.
Sand the plywood locating former to bevel it on both
sides. This will allow it to slot into the groove on the
fuselage easily without damaging the foam.
Glue the wooden wing spars to one wing. On the
longer one, only apply glue to the wooden wing spar
at the back. For the shorter rear one, apply glue to
both sides of it.
Make sure the wing spars are flush with the top and
bottom surfaces of the wing.
Apply glue to both surfaces where the foam wings
join in the middle as well as to one side of the longer
plywood wing spar and both sides of the shorter one.
Then glue the wings together as shown.
