GREAT PLANES Big Stir 40 Instruction Manual - Page 10

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7. Test fit the fin in the slot in the fuselage. When you are

satisfied with the fit, mark a line on both sides of the fin

where the top of the fuselage contacts the fin. Trim the

covering 1/32" (.8mm) inside of the lines.

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8. When you are satisfied with the fit, use 6-minute epoxy

to glue the fin in position. Check the alignment of the fin to

the stabilizer with a triangle, then secure it in position with

masking tape until the epoxy has cured. Double-check the

alignment of the fin with the stabilizer while the epoxy cures.

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9. Install the hinges in the stabilizer and elevator. Glue

the hinges to the elevator the same way you did with the

ailerons. Repeat this step for the rudder.

ENGINE INSTALLATION

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1. The top left and right corners of the firewall have pre-

drilled holes. These holes are for the fuel and pressure line to

pass through. Check to be sure that the holes are large enough

for your fuel line. If not, drill the holes to fit the fuel tubing.

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2. Mix a small amount of 6-minute epoxy. Brush the

epoxy on the front of the firewall and let it cure. This will

fuelproof the firewall.

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3. Cut the "spreader bar" from each Engine Mount half.

Carefully trim any extra material left by the spreader from

each mount half. The surfaces where the spreader bars were

attached must be smooth to allow the mount halves to fit

together. Trim the flashing off any rough edges if necessary.

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4. Locate four 6-32 blind nuts and four 6-32 x 3/4" pan

head screws. Install the blind nuts onto the back side of the

firewall. Use the screws to attach the engine mount to the

firewall and to set the blind nuts.