❏
1. Carefully balance your propellers before flying. An
unbalanced prop is the single most significant cause of
vibration. Not only may engine mounting screws vibrate out,
possibly with disastrous effect, but vibration may also
damage your radio receiver and battery. Vibration may cause
your fuel to foam, which will, in turn, cause your engine to
run lean or quit. We use a
Top Flite Precision Magnetic
Prop Balancer
(TOPQ5700) in the workshop and keep a
Great Planes Fingertip Balancer
(GPMQ5000) in our
flight box.
❏
2. Push the
spinner backplate
onto the prop shaft all the
way. The center hole may be enlarged with a prop reamer or
drill if necessary. Align a prop next to the “short” pins, but not
between the “long & short” pins on the backplate. Finger
tighten the prop nut and washer. Rotate the prop shaft
counterclockwise until the engine reaches its compression
stroke. Hold the prop shaft (or rear prop washer) while
rotating the spinner backplate and propeller to the two
o’clock position. Tighten the prop nut securely. Attaching the
propeller in this position allows easier flip starting.
❏
3. Attach the
spinner
to the backplate using the two
M3 x 15 screws
.
❏
1. Install the three
wheels
using the six
5/32" wheel
collars
and
set screws
. Grind or file a flat spot at the point
of the set screw contact for each of the outer collars. This
provides a better area for the set screw to “bite” and helps
keep the wheels in place.
❏
1. Mount the wing to the fuselage. Trim out the
wing
fairing
and position it on the fuselage. Mark the edges
around the wing fairing. Remove the fairing. Lightly sand the
wing fairing and the wing where they contact each other.
Clean the areas with rubbing alcohol and a paper towel to
remove any dust or oil. Mix 1/4 oz. of 30-minute epoxy and
glue the wing fairing in place. Use masking tape to hold it in
place until the glue cures. Any excess epoxy can be cleaned
up using a paper towel and rubbing alcohol.
❏
2 Carefully trim the
canopy
along the “cut lines” with a
scissors or Lexan
®
scissors. Test fit the canopy on the wing
fairing as you proceed, making small adjustments as
required for a good fit. The area inside the canopy can be
detailed at this time by painting and adding a pilot figure to
Install the Canopy
Install the Wheels
Balancing the Propeller
FINAL ASSEMBLY
19
