GREAT PLANES Ultra Sport 40 Plus, Instruction Manual

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36. Cut the leftover sheeting from step 31 with the
grain into 3/8" [9.5mm] wide balsa strips. Use these strips to
make your cap strips. Cut the cap strips to fit between the
forward sheeting and the trailing edge sheeting. Use the
plans as a guide to identify the ribs that should be cap
stripped.
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37. Flip the wing over and sand the bottom of the wing
smooth. Locate a 1/16" [1.6mm] x 3/4" x 30" balsa stick.
Glue the stick flush with the wing trailing edge (TE) using
medium CA. Cut the ends of the stick that extend past the
wing tip and wing root.
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38. Use the sketch in step 31 to prepare the sheeting
for the bottom wing surface. Glue the sheeting in place using
the same procedure as was used for the top sheeting. Cut
the ends of the sheeting that extend out from the wing root
and tip.
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39. Glue one of the 1/16" x 3" x 4-3/4" [1.6mm x 76mm
x 121mm] balsa sheets cut in step 35 to the wing center-
section. Use some of the leftover sheeting cut in step 31 to
complete the center-section sheeting. Also, cut that same
leftover balsa sheet into 3/8" [9.5mm] strips and use them to
cap strip the ribs on the bottom surface of the wing.
Remember to cap strip the aileron servo tray. This is the same
procedure as used for the top wing sheeting and cap strips.
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40. Sand the tip and root of the wing smooth. Sand the
leading edge sheeting flush with the sub-leading edge. Also
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