covering 1/16" inside the lines you marked. Make an
additional cut 1/2" inside of the cuts already made. Peel the
covering from the wing to expose the balsa wing sheeting.
12. Mount the wing to the fuse. Use epoxy to glue the cockpit
to the wing.
❏
1.Turn to page 23 and cut the engine mount template from
the manual. Use spray adhesive or tape to temporarily attach
the template to the firewall with the vertical and horizontal lines
on the template aligned with the lines on the firewall.
❏
2. Use a small punch or a wire sharpened on one end to
transfer the engine mount bolt holes to the firewall by
making dimples in the wood. Remove the template.
❏
3. Drill 7/32" holes through the firewall at the marks. Install
four 8-32 blind nuts into the holes on the back of the firewall.
Refer to this photo for the following two steps.
❏
4. Mount the engine mount to the firewall with four
8-32 x 1" SHCS (socket-head cap screws), #8 lock washers
and #8 flat washers, but do not fully tighten the bolts. Place
the back plate of the spinner on the engine. Adjust the width
of the mount to fit the engine. Center the molded-in “tick”
marks on the engine mount over the horizontal line on the
firewall. Tighten the mounting bolts.
❏
5. Use small clamps or another method to temporarily
secure the engine to the mount with the back plate of the
spinner 5-11/16" from the firewall. Use a Great Planes Dead
Center
™
Engine Mount Hole Locator (GPMR8130) or
another method to mark the engine mount holes onto the
engine mount.
❏
6. Remove the engine from the mount. Drill #29 holes
through the mount at the marks you made. Tap 8-32 threads
into the mount. Mount the engine to the mount with four
8-32 x 1" socket head cap screws and #8 lock washers.
❏
1. Use epoxy to glue the four 1/2" x 1/2" x 5/8" maple
cowl mounting blocks to the firewall where shown. Before
gluing the top two blocks, sand them to a curved shape to
match the top of the fuse. Also note that the top left block will
have to be trimmed to accommodate the engine mount.
Mount the Cowl
Mount the Engine
15
