Great Planes Curtis P-6E Hawk EP Biplane ARF - GPMA1164 - Manual (Page 19)

19
Set the Control Throws
Use a ruler to accurately measure and set the control throw
of each control surface as indicated in the chart that follows.
If your radio does not have dual rates, we recommend setting
the throws at the low rate setting.
NOTE: The throws are measured at the widest part of the
elevators, rudder and ailerons.
These are the recommended control surface throws:
ELEVATOR
HIGH LOW
5/8"
[16 mm]
16°
3/8"
[10 mm]
10°
3/4"
[19 mm]
37°
7/16"
[11mm]
20°
5/8"
[16 mm]
14°
3/8"
[10 mm]
8°
RUDDER
AILERONS
Up & Down
Up & Down
Right & Left
IMPORTANT: The Curtiss P-6E Hawk EP has been
extensively fl own and tested to arrive at the throws at
which it fl ies best. Flying your model at these throws will
provide you with the greatest chance for successful fi rst
fl ights. If, after you have become accustomed to the way
Curtiss P-6E Hawk EP fl ies, you would like to change the
throws to suit your taste, that is fi ne. However, too much
control throw could make the model diffi cult to control, so
remember, “more is not always better.”
Finish the Model
❏
1. Insert a fl ight battery in the fuselage and use Velcro to
hold the battery in position. Do not connect the battery to the
ESC while balancing the model.
Balance the Model (C.G.)
More than any other factor, the C.G. (balance point) can
have the greatest effect on how a model fl ies, and may
determine whether or not your fi rst fl ight will be successful.
If you value this model and wish to enjoy it for many fl ights,
DO NOT OVERLOOK THIS IMPORTANT PROCEDURE.
A model that is not properly balanced will be unstable and
possibly unfl yable.
At this stage the model should be in ready-to-fl y condition with
all of the systems in place including the motor and battery,
landing gear, covering and paint, and the radio system.
❏
1. Use a felt-tip pen or 1/8" [3mm]-wide tape to accurately
mark the C.G. on the bottom of the top wing at the side of the
fuselage. The C.G. is located 3" [76mm] back from the leading
edge of the wing at the side of the fuselage.
This is where your model should balance for the fi rst fl ights.
Later, you may wish to experiment by shifting the C.G. up to
3/16" [5mm] forward or 1/8" [3mm] back to change the fl ying
characteristics. Moving the C.G. forward may improve the
smoothness and stability, but the model may then require
more speed for takeoff and make it more diffi cult to slow
for landing. Moving the C.G. aft makes the model more
maneuverable, but could also cause it to become too diffi cult
to control. In any case, start at the recommended balance
point and do not at any time balance the model outside the
specifi ed range.