GREAT PLANES Ultra Sport 40 Plus, Instruction Manual

Page: 9 / 62

9
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1. Unroll the plan sheets. Roll them inside out so they will
lie flat.
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2. Position the wing so that the stab and elevator plan is
over your flat building board. Cover the plan with Great
Planes Plan Protector or waxed paper so glue will not adhere.
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3. Locate the die-cut 1/8" [3.2mm] stab center (SC). Pin
the stab center in its position over the plans. Locate one 1/8"
x 1/2" x 30" [3.2mm x 13mm x 760mm] balsa stick. Cut it to
size as shown on the plan to form the leading edge of the
stab. Glue it in place with medium CA.
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4. Cut 1/8" x 1/2" x 30" [3.2mm x 13mm x 760mm] balsa
sticks to size as needed to form the stab outer structure.
Glue them in place with medium CA.
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5. Locate the 1/8" x 1/4" x 30" [3.2mm x 6.4mm x 760mm]
balsa sticks. Cut them to size as shown on the plan. Then
glue them in place with medium CA to form the stab inner
structure.
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6. Locate the 1/8" x 1/8" x 30" [3.2mm x 3.2mm x 760mm]
balsa sticks. Cut them to size as shown on the plans to
complete the stab’s inner structure. Glue them in place with
thin CA. Remove the stab from the plans and lightly sand
the top and bottom surfaces of the stab smooth.
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7. Cut 1/8" x 1/2" x 30" [3.2mm x 13mm x 760mm] balsa
sticks to size to form the elevator outer structure. Use
medium CA to glue the sticks in place.
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8. Locate the two die-cut elevator roots (ER). Glue one
in place in each elevator half as shown on the plan.
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9. Cut the 1/8" x 1/4" x 30" [3.2mm x 6.4mm x 760mm]
balsa stick to size to form the elevator inner structure. Also,
cut the 1/8" x 1/8" x 30" [3.2mm x 3.2mm x 760mm] balsa
stick to size to complete the elevator inner structure. Use
thin CA to glue the sticks in place.
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10. Remove the control surfaces from the plan and sand
them smooth. Locate four 1/16" x 3" x 36" [1.6mm x 76mm
x 914mm] balsa sheets. Mark and cut each sheet 19"
[480mm] from one end.
Build the Stab & Elevator
BUILD THE TAIL SURFACES
BUILDING INSTRUCTIONS