Section 6: Electric Motor Installation - Hangar 9 Sundowner 50 ARF Assembly Manual

Section 6: Electric Motor Installation

Required Parts
• Fuselage assembly
• Electronic speed control
• Aluminum standoff (4)
• Hook and loop strap (2)
1
• 8-32 x 2 / -inch machine screw (4)
4
Required Tools and Adhesives
• Threadlock
• Drill bit: 5/32-inch (4mm) • Hobby knife
• Covering iron

Step 1
Use a hobby knife to remove the plywood from the
sub-firewall to provide cooling air to pass through the
fuselage. The plywood has been partially cut so all that is
required is to score the plywood along the lines.

Step 2
Use a hobby knife to remove the plywood from the
top of the engine box to provide cooling air to pass
through the fuselage. The plywood has been partially
cut so all that is required is to score the plywood along
the lines.
• Motor w/hardware
• Motor battery
• Tie wrap
• Drill

Step 3
Use a hobby knife and a covering iron to open the cooling
air exit in the bottom of the fuselage. Cutting the covering
1/8-inch (3mm) inside the opening and ironing the
covering into the fuselage will leave a clean look to the
bottom of the fuselage as shown.

Step 4
Use a drill and 5/32-inch (4mm) to enlarge the outer
holes in the X-mount as shown.
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