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1. Assemble the three laminations that will comprise the firewall. If you have your motor mount, now is a good
time to locate and drill the mounting holes and install the blind nuts. The centerline and the offset thrust line
are indicated on the firewall front for this purpose.
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2. Turn the assembly over and repeat the process on the reverse side.
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3. Glue on the 1/8” ply trailing edge taking care to align it with the balsa trailing edge.
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4. Assemble the two-piece fin skins and install.
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5. Use some scrap 1/16” balsa and glue two laminations to the bottom of the skins to stiffen the sheeting at the
bottom.
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6. Carve and sand to shape. Assemble the rudder from three 1⁄4” laminations. Note that the center lamination
also contains a ply horn mount, as did the elevator.
Here the second half of the split ribs are
being added to the stabilizer core sheet.
Note that this part of the construction is
done in the air.
Here the laser cut fin sheeting is being
assembled over parchment paper with
thin CA.
Here the fin sheeting is being installed.
Note the tab on the rudder post will
provide exact positioning.
Fuselage
A couple of notes on the fuselage construction
The firewall has 3.5º of right thrust built in. This will require that the motor be mounted offset to the left
side of the airplane so the spinner will center. This requires that the fuselage sides be slightly different
and so are marked left and right. Be sure to note this.
After assembly add two layers of scrap
1/16” balsa to the bottom of the assem-
bly as shown in this before and after
example.
