Build The Front Turtledeck - GREAT PLANES Rapture 40 Instruction Manual

11. Use epoxy to glue the cheek supports (CS) to the inside
of both fuselage sides in front of the firewall. With the engine
resting on the engine mount, test fit, then glue the cheek floor
into position as you squeeze the fuselage sides to it. Make
certain the cheek floor doesn't interfere with the engine.
12. Mount a 2-1/2" [64mm] spinner (not included) and
propeller to the engine. Place the engine on the mount.
Adjust the spacing of the mount halves to fit the engine, then
temporarily tighten the screws. Position the engine on the
mount so there will be an approximately 1/8" [3mm] space
between the spinner and fuselage sides. Use a Great
Planes Dead Center engine mount hole locator or a wire
sharpened on the end to mark the engine mounting holes
on the mount.
13. Remove the engine and mount from the fuselage. Drill
3/32" [2.4mm] holes through the engine mount at the marks
you made. Re-mount the engine mount to the firewall, then
mount the engine to the mount with four #4 x 3/4" [19mm]
screws and #4 flat washers and lock washers. Center the
engine mount from side-to-side on the centerline drawn down
the firewall, then tighten the screws. Hint: Some modelers
prefer machine-thread screws rather than sheet metal screws
for mounting their engines. If this is your preference, drill #43
[2.2mm] holes and use a 4-40 tap to cut threads into the
holes. Mount the engine with four 4-40 x 1" [25mm] screws
(not included), #4 lock washers and flat washers.
14. If using the O.S. MAX .40 or .46 FX engine the hole
in the firewall and formers for the throttle pushrod guide tube
are already in the correct location. If using a different engine
the hole in the firewall for the guide tube might have to be
relocated to align with the carburetor arm on the engine. If
necessary, determine where a new hole is to be drilled, then
drill a 3/16" [4.8mm] hole.
15. Cut one of the leftover gray pushrod guide tubes to
the length shown on the plan to be used for the throttle
guide tube. Roughen the outside of the tube with coarse
sandpaper, then install and glue the tube into position.
16. Cut or drill the hole where necessary for the needle
valve and trim the fuselage side for the muffler. A rotary tool
with a carbide cutter works best.

Build the Front Turtledeck

1. Glue on the front turtledeck formers FD1, FD2 and
FD3. Use a small builder's square to make sure the formers
are vertical.
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