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http://www.jperkinsdistribution.co.uk
Twister Bell 47
PREFLIGHT CHECKS
1. 4 IN 1 UNIT CHECKS
The 2 trimmers on the front of the '4-in-1' unit are
factory adjusted and should need no adjustment.
The status LED is next to the trimmers. The trimmers
perform these functions:
Gyro gain. The left trimmer (GAIN) adjusts
the amount of gyro tail stabilisation from
0 to 100%. The piezo gyro automatically
stabilises the tail against torque changes
and gusts, making the helicopter much
easier to control. 90% is usually the best
setting.
Yaw trimmer. The right trimmer
(PROPORTIONAL) adjusts tail trim (centring
of the tailboom).
WARNING!
This unit contains delicate electronics. If your
model tips over or crashes when flying or if your
Twister Bell 47 motors are physically stalled and
prevented from turning, you must immediately
reduce throttle to avoid damage to the speed
controllers and other components.
Crash damage and motor stall damage is not
covered by warranty.
2. VISUAL CHECKS
Check that all linkages and connectors are
attached and that rotating parts are free to
rotate smoothly.
Check that all linkages move freely with no
binding or stiffness. Free off any linkages
that show any level of tightness or binding.
3. TRANSMITTER CHECKS
Each dual axis stick unit on your transmitter controls
2 helicopter functions giving you control about all
4 axes; pitch (nose up/down), roll (roll left/right),
height and yaw (nose left or right).
In the photo below, the left stick controls height
(climb or descent) and yaw (left or right). The right
stick operates the cyclic steering controls, which
are used to pitch the helicopter nose up/nose down
(for forwards or backwards flight) and to roll the
helicopter left or right (for left or right sideways
flight).
See pic below for Mode 2 layout.
See pic below for Mode 1 layout.
1. Move the throttle stick and throttle trim of
your transmitter to the lowest (low throttle)
position.
2. Centre the trim levers of the 3 other
transmitter functions.
3. Extend the transmitter aerial fully.
4. Switch on the transmitter.
5. Check that the receiver aerial is unwrapped
ENTIRELY and lay it out leading away from
the helicopter
.
Gain
Yaw trim
Status LED
Summary of Contents for TWISTER BELL 47
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