E-flite Alpha 450 Sport ARF - Manual (Page 27)

27 E-flite Alpha Sport 450 ARF Assembly Manual
 D. Slide the assembly on the motor shaft. It should
fit snugly on the shaft. If it seems to be excessivly
loose, you have used the wrong motor adapter
and need to return to Step B and swap the adapter
out with the remaining adapter included with the
spinner assembly.
 E. Use an adjustable wrench or 10mm open-end
wrench to tighten the nut. This will secure the
adapter and propeller to the motor shaft.
 F. Place the spinner cone on the backlplate. Position
the spinner cone so the openings in the spinner
cone are not in contact with the propeller. Use the
screw included with the spinner assembly and a
3/32-inch hex wrench or ball driver to tighten the
screw to secure the spinner cone in position.
Center of Gravity
An important part of preparing the aircraft for flight is
properly balancing the model.
Caution: do not inadvertently skip this step!
The recommended Center of Gravity (CG) location for
the Alpha 450 is 3 1 /
4
to 3 1 /
2
(82 to 88mm) back from
the leading edge of the top wing. Mark the location for
the Center of Gravity on the bottom of the top wing in
the center as shown.
When balancing your Alpha 450 Sport 450, support
the plane upright at the marks made on the bottom of
the wing with your fingers or a commercially available
balancing stand. Move the motor battery as necessary
so the model hangs level or slightly nose down. This is
the correct balance point for your model.
BALANCEd MOdEL