Great Planes Super Skybolt 60 Kit - GPMA0170 - Manual (Page 44)

balsa sheets (SKY6W25) as shown in the photo.
Notice that a triangle is cut out of the sheeting to
cover one tip of each strut.
D 13. Cut and sand the center trailing edge to
achieve a nice, smooth semi-circle. Also round off
the edge as shown in the photo.
D 2. Trim the sheeting flush with the edges of the I-
struts except where the wires will go. Leave about
1/8" extra at these points as shown in the photo.
D 14. Make a mark on the LE and TE sheeting at
each of the ribs. This will make it easier to install the
cap strips. Cut the cap strips from the 1/16" x 3/8" x
30" balsa sticks (SKY6W25) and glue them in place
on the top and bottom of each rib. When installing
the cap strips on the T7 ribs, be careful to keep
from getting glue in the l-strut slots.
D 3. Use a small file, a grinding wheel or a Dremel
Moto-Tool with a cut-off wheel to smoothly chamfer
the longer ends of all the 1/16" wires (WBNT181
and WBNT182). These ends will slide into the wing
rib assemblies so they need to be smooth. The
photo above shows which ends to chamfer and
what they should look like when they are done. It is
important that you do a good job here so the l-strut
interlocking system will work well.
D 15. Cut through the cap strips on the bottom of
rib T7 to expose the rest of the l-strut slot. Harden
the area around the slot with thin CA or lightweight
fiberglass cloth.
BUILD THE INTERPLANE STRUTS
D 1. Punch out the two die-cut 1/8" ply l-struts
(SKY6W08) and sand off any rough edges. Glue
the l-struts to one of the 1/16" x 3 x 24" hard
D 4. Position the l-struts over the l-strut detail
drawing on the plan. Scuff the short end of each
1/16" wire with fine sandpaper and tack glue them
into the l-struts with a drop of thin CA. There are
only two different types of 1/16" wires,
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