11
47. Hinge the elevators to the H stab using the same method as was
used with the ailerons. Tape in place and allow the epoxy to cure.
48. Extend out the center lines on the firewall box as shown. Note:
The center hole will be near the top of the box. When mounting the
motor inverted, insure that the mount is on the firewall correctly.
50. Center the engine mount on the firewall box with the marks made
in the previous step.
49. Use a pencil to mark the centerline on the sides of the engine
mount. The centerline will be in line with the cross section on the
back of the mount.
51. With the engine mount aligned, use a 7/32" drill bit to mark the
bolt holes on the firewall box.
52. Remove the mount and drill four 15/64" holes in the firewall.
53. Install four 10-32 blind nuts in the back of the firewall and check
to make sure they do not extend through the front of the firewall. If
they do, see step 54.
Use med CA to glue the blind nuts in place.
Engine Mounting - Revolution 50
In this section, we discuss installation of the Revolution 50 gas engine.
We chose this engine because the narrow design and special muffler fits
well in the cowl. You can install any similar sized engine by following our
instructions for the Revolution 50.
Before mounting the engine, it’s a good time to check the fit of the fuel
tank in the engine box. You may need to sand the sides of the box so
the fuel tank will fit in the opening.
