-
Have you put clear tape over the end of the rudder hinge wires and on the stab bolts ?
Don’t forget to tighten the large Plastic M6 wing retaining nuts before flying!
-
For added security add one small drop of loctite/thread locking compound on all engine
mounting bolts, and those that hold the servo arms to the servos, especially important
with digital types.
Then you can go on set up all the linkages, control throws and R/C system as described below.
Setting Up Your Aircraft
Centre of Gravity:
For the 1st flights set the Centre of Gravity at
85 - 90mm (3.3 - 3.6”) from the leading edge
at the wing tip
. Hold it with a helper at both
wing tips in this position and make sure the
plane balances horizontally, or slightly nose-
down. This is the ‘pattern’ CG position.
After you are confident with the plane, you can
move it backwards up to 95mm from the lead-
ing edge at the
wing tip
, but this is definitely
a ‘3D/Freestyle’ CG setting and should not be
used for the first flights. With this rearward CG
you will need to use the high rate control
throws and more exponential, as described
below.
Don’t forget to balance the plane laterally also, holding the spinner central bolt and a fingertip
under the rudder, and if needed add a small weight to the light wing tip.
Engine Thrustline:
UPthrust should initially be set at 0.5 - 0.75°
degrees and right thrust 3 - 3.5 degrees,
depending on the power system and propeller
used. Of course, final settings can be fine-
tuned to your liking after the first few flights,
and will ultimately depend on your motor/pro-
peller set up.
Control Throws:
All measurements are at the root/trailing edge
position. All controls should be set with a dual
rate switch, and we
highly recommend
that
you make your first trimming flights using all of
the low-rate settings listed below.
Composite-ARF Extra 300L
(2.12m/84”)
30
3 - 3.5° Right-thrust,
depending on propeller
0.5 - 0.75° UP-thrust,
depending on prop
THRUSTLINE
C of G range:
85 - 90 mm
from Leading Edge at Wing Tip.
CENTRE of GRAVITY
85 - 90mm
