Page 6
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Construction Manual
When finished, glue this piece
in place, making sure it is
securely glued to each of the
ribs, the upper spar, and the
leading/trailing sheeting.
Step 21 - Wing Assembly (top cap strips)
Included in the kit is a piece of
1/16" x 2" x 24" sheeting that
is pre-cut into 1/4" strips. These
strips are to be used as cap-
strips for the wing.
Carefully measure and cut cap
strips to cover the exposed
R3, R4 and R5 ribs (but NOT
R6), These strips will cover the
ribs between the leading and trailing edge sheeting. These strips
should also be centered on each rib.
Step 22 - Wing Assembly (reinforce glue joints)
Remove the wing from the building board and make sure that all
of the wood to wood joints are securely glued together. Especially
check that all of the sheer webs are glued to the ribs and the spars.
If not, run a thin bead of glue where needed.
Step 23 - Wing Assembly (wing dowel marks)
With the wing flipped over, mark
where the leading edge will need be
cut to allow the wing dowel to be
inserted in a later step.
Step 24 - Wing Assembly (WB3)
Locate four of the WB3 pieces from
LP1. These are glued in place as
shown, with two up against the R1
and R2 ribs, the other two on the
outer edges of the circular cutout in
WB1.
Step 25 - Wing Assembly (WB2)
Locate WB2. It is glued in
place as shown, on top of
the WB3 pieces installed in
the previous step.
Note that WB2 has a small
circle engraved designating
the edge that faces to R1.
Make sure it is securely
glued to each WB3 as well as the RB1 and RB2 ribs.
Step 26 - Wing Assembly (tab removal)
Now it’s time to remove the tabs from the
bottom of the trailing edge. These should
be carefully cut away, then sanded so they
allow the continuation of the airfoil's shape
as shown here.
Because R1 is made from ply, we found it
easiest to first use a pair of side-cutters or a
saw to remove the majority of the tab, then
sand.
Step 27 - Wing Assembly (aileron servo rails)
Locate the leftover 3/16” x 3/8”
basswood strips you cut when
creating the spars.
Measure and cut two lengths to
span the width between the R4
ribs, leaving an extra 1/8” or so on
each side.
Slide these pieces into the pre-cut
slots in the ribs, forming the servo
rails. Glue these in position.
Step 28 - Wing Assembly (hinge supports)
Using scrap 1/4" square balsa, cut 4 pieces to form hinge supports.
These are glued to the inside of the trailing edge, as we show on
the plans, to give more surface area for the hinges to attach.
Step 29 - Wing Assembly (lower leading edge sheeting)
Using the same techniques
you did when cutting and
installing the upper sheeting,
locate another of the un-cut
1/16" x 4" x 24" sheets. Make
a cut to form a 1-3/4" x 24"
strip and put that aside.
Weigh down the wing as
before, then glue the 2-1/4"
strip to the underside of the leading edge. Then, apply glue to the
ribs and spar so you can attach the rest of the sheeting to the wing.
Step 30 - Wing Assembly (lower leading edge sheeting)
Lightly sand the trailing edge
to allow the continuation of
the airfoil shape. Now use the
1-3/4" strip of 1/16" sheeting
you cut away in the previous
step as the trailing edge
sheeting.
You will need to cut out a notch
around WB2 as shown here,
before you glue this piece in
position. Take your time to get a good fit, then apply glue to each
of the ribs, the trailing edge and all of the rear sheer webs.
Removed tab before
sanding
After sanding
