Page 4
www.oldschoolmodels.com
Construction Manual
leading edge of the wing. Measure, cut, pin and glue these into
position as shown.
When finished, locate one of the 3/16” x 3/8” basswood strips for
the lower spar. Measure, cut, glue in place on top of the sheeting
and cap strips as shown on the plans.
Step 6 - Wing Assembly (R3 and W3)
Locate one of the R3 ribs from
BP1 or BP2, as well as one W3
sheer webs from BP8.
Note the circle etched into one
corner of W3. This circle should
face up and towards the wing
tip.
Glue W3 to R3 as shown here,
at a 90° angle.
Step 7 - Wing Assembly (R3 and W3, part 2)
Now glue the R3 and W3
assembly in place as shown,
making sure that R3 is centered
on the cap strip, along it’s entire
length. Also make sure that W3
is glued to the lower spar.
Step 8 - Wing Assembly (R3’s and W2’s)
Next, you’ll be locating a single
R3 rib and a single W2 sheer
web, gluing them together at
a 90° angle, then gluing that
assembly to the cap strips and
spar. You’ll be working your way
from the tip, towards the center
of the wing.
Make sure that each R3 is centered on its cap strip and the W2’s
are glued to the lower spar. Continue doing this until you reach
R2’s position.
The next two steps involve R1 and R2 ribs. Use care when
handling these pieces as they are easily snapped in half
It’s best if they remain in 1 piece, but if they do break apart,
make sure both parts are properly aligned with each other
when gluing them in position.
Step 9 - Wing Assembly (R2)
Locate one of the R2
ribs from BP1 and glue a
W2 to it at the same 90°
angle. Now glue this in
position.
You should now have a
wing panel that looks as
shown here, only missing
the outer ribs and one of
the sheer webs.
Step 10 - Wing Assembly (R1 assembly)
Locate one of the R1 ribs from
BP1, a W1 from BP8 and a DS
from LP1. Both W1 and DS
have circles etched into them.
When properly positioned,
these circles should be next
to R1 and face up. Glue both
pieces in place at a 90° angle.
Step 11 - Wing Assembly (R1)
Next it’s time to attach the R1
assembly from the last step to
the wing.
Position it at shown and use the
1.5° angle tool (part of LP2) to
ensure that W1 is positioned at
the correct angle.
This angle is important as
it makes up the 3° of total
dihedral designed into the
center section of the wing.
Also make sure that R1 is straight along the edge
of the bottom sheeting.
When satisfied with the fit, glue R1 into position.
(Do not glue the 1.5° angle tool to the wing.)
Step 12 - Wing Assembly (outer R3)
The final R3 rib is now glued into place.
Use the 3° angle tool (located in LP2)
to aid in it’s alignment, using the same
technique as you used in the previous
step.
Also make sure that R3 is straight along
the edge of the cap strip.
When satisfied with the fit, glue R3 into
position. (Do not glue the 3° angle tool to the wing.)
Step 13 - Wing Assembly (wing tube)
Locate one of the 6” wing tubes. Lightly sand the outer surface to
rough it up just slightly. This
will aid in allowing the glue
to hold it in place.
If you haven’t already, pop
out the circles in R1 and R2
where the wing tube will slide through. Now slide the wing tube
into place until it rests firmly against the first R3.
Mix up a little bit of epoxy and glue the wing tube to the lower
spar, wing ribs and sheer webs.
Step 14 - Wing Assembly (wing dowel)
Locate the 6” dowel, mark and cut a 1-3/4” length, bevelling both
ends. Now carefully mark and cut the leading edge of the wing so
the wing dowel can be inserted.
Slide the dowel into position as
shown and glue in place when
satisfied with the fit.
Later, when building the left wing, make
sure sheer web is on the opposite (left) side
of the rib.
