FUTABA 6J Instruction Manual page 88

effect and is not a critical mix for most helicopters.)
Ruddervator
Ruddervators are on a v-tail. Both of the ruddervators move up and down for pitch control and both move
left or right for yaw control.
‡ Rx
Abbreviation for receiver.
‡ SMT = Surface Mount Technology
Ultralight, solid-state components which offer greater vibration resistance and reliability.
‡ Seaplane
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‡ Servo
The electro-mechanical device which moves the control surfaces or throttle of the aircraft according to
commands from the receiver. The radio device which does the physical work inside the aircraft.
‡ Servo Reversing
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‡ Servo Output Arm
The removable arm or wheel which bolts to the output shaft of a servo and connects to the pushrod.
‡ Slats
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open and close automatically, depending upon airspeed and angle of attack.
‡ Slip
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of descent without picking up a lot of speed.
‡ Slop
Unwanted, excessive free movement in a control system. Often caused by a hole in a servo arm or control
horn that is too big for the pushrod wire or clevis pin. This condition allows the control surface to move
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‡ Slot
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