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Gyros:
information on gyro types, please see p. 70.
Retracts: Retractable landing gear is often used on scale models for increased realism and on high performance models to
one direction to full travel the other direction, then mechanically hold the gear into the locked position. A regular
servo used for mechanical retracts will continue to draw full power the entire time, prematurely draining the battery
and risking crash of your model. End point will not adjust a retract servo.
Pneumatic (air driven) retracts use a standard servo to control an air valve which directs air into or out of the retract units,
moving the gear up or down. Pneumatics are easier to install but require added maintenance of the air system.
Gear Doors:
Many scale and aerobatic models use smoke systems to provide increased realism or a more impressive
demonstration. There are many smoke systems available, with varying types of control. Most use a servo to increase/
Kill Switches:
someone accidentally turn on the mechanical kill switch on the exterior of the model.
Bomb Drops, Paratroopers, and other Released Items:
71
AUX-CH .
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