Carl Goldberg GBGA1047 - Manual (Page 23)

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and adjust the tension of both cables evenly. Tension the
cables until there is no slack in the cables when you apply
light pressure to the rudder with the servo fi xed. Make sure
that the rudder itself is still centered once you have the
proper tension set. You should periodically inspect the pull-
pull system for proper tension and general condition.
❏
4. Set all of your control throws according to the chart
below. If your radio does not have dual rates, we recommend
starting out on the low rates for the fi rst few fl ights and then
moving up to the high rates. Use a builder’s protractor or an
inclinometer to help you achieve the proper throws.
Set your throws mechanically by repositioning the linkages
in the servo arms and/or the control horns and THEN
fi ne-tune them with your transmitter’s end-point feature.
Settings:
High Rate Low Rate
ELEVATOR: 14° up 12° up
14° down 12° down
RUDDER: 23° right 15° right
23° left 15° left
AILERONS: 12° up 10° up
12° down 10° down
C.G. BALANCING
Setting up your airplane with the proper C.G. and setting
proper control throws are the most important things you
can do to ensure that your airplane is safe. An airplane with
improper C.G. and/or throws is unstable and can potentially
be impossible to control. IMPORTANT: Never neglect these
procedures with any airplane! Take the time to properly
balance and setup your model!
❏
1. Measure 2-3/8" [60mm] back from the LE of the lower
wing and make a mark. This will be where your model will
need to balance. The forward C.G. limit is 1-7/8" [48mm] from
the lower wing’s LE. The aft C.G. limit is 2-7/8" [73mm] from
the lower wing’s LE. You may move your radio gear to help
your plane balance, but make sure that it is secured properly.
❏
2. Turn your model over and balance it on a suitable stand or
using your fi ngertips. Use the stabilizer as your zero reference.