30
GET THE MODEL READY TO FLY
INSTALL THE PROPELLER
❏
1. Carefully balance the propeller and any spare
propellers. An unbalanced propeller can be the single
most signifi cant cause of vibration that can damage
the model. Not only will engine mounting bolts loosen,
possibly with disastrous effect, but vibration may also
damage the receiver and receiver batteries. Vibration
can also cause the fuel to foam, which will, in turn,
cause the engine to run hot and quit.
We use a Top Flite Precision Magnetic Prop Balancer
(TOPQ5700) in the workshop and keep a Great Planes
Fingertip Prop Balancer (GPMQ5000) in our fl ight box.
(Gas Engine)
❏
2. The included aluminum prop hub was designed
to be used with the DLE-55, DLE-61 and the O.S. GT
60 gas engines. Bolt the include prop hub in front of
the propeller in place of the prop washer.
❏
3. Install the prop hub cone on the engine using
a M5 x 50mm socket head cap screw. Use a drop of
threadlocker on the threads.
(Electric Motor)
❏
4.
APC Electric Propeller
: Enlarge the propeller
shaft hole to 10mm using a metric prop reamer or a
size ‘X’ drill bit. Trim 1/4" [5 mm] from the end of the
spinner adapter (GPMQ4590 not included) so that the
adapter is 1-1/4" [32 mm] long. Install the propeller on
the motor shaft and secure it with the spinner adapter
and washer.
❏
5. Secure the spinner cone to the spinner adapter
with a 10-32 x 1” socket head cap screw (not included).
