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Apprentice

STOL S 700mm

Glossary of Important Terms

Aileron: Control surface found on the trailing edge of each wing. Giving right

aileron control causes the right aileron to deect up and the left aileron to

deect down, making the aircraft roll to the right. Giving left aileron control

causes the left aileron to deect up and the right aileron to deect down,

making the aircraft roll left.

AS3X: Active Stabilization, 3-Axis. An electronic stability system that counters

outside forces such as wind, turbulence, torque, tip-stall, control sensitivity

issues due to CG position, to make the aircraft y more smoothly, and

provide a better ying experience.

Binding: The process of electronically linking the transmitter to the receiver.

The aircraft will then recognize only a particular transmitter.

Center of Gravity (CG): Point at which the aircraft balances, most notably from

front to back.

Control Horn: An arm installed on a ight control surface to permit actuation

via an attached pushrod.

Control Throw: The distance a control surface deects, normally measured

from the widest point of the control surface.

Dual Rate: Setting found in the transmitter which allows two different control

throw distances when the control stick is deected fully. Using a low rate

gives less control throw at full deection and thus a less sensitive feel to the

aircraft. Using high rate gives greater control throw at full deection and thus

a more sensitive feel to the aircraft.

Elevator: Control surface found on the trailing edge of the horizontal stabilizer.

Up elevator causes the aircraft to pitch up. Down elevator causes the aircraft

to pitch down.

Electronic Speed Control (ESC): an electronic device that controls and

regulates the speed of the motor. It has connections from the battery, to the

motor, and to the Receiver.

Exponential: A setting programmed in the transmitter which allows the

pilot to tailor the sensitivity of the controls around neutral. Increasing the

exponential value creates a softer control feel around neutral, thus making

the aircraft less sensitive to control inputs. Exponential only affects the

controls around neutral.

Low Voltage Cutoff (LVC): A safety feature built into the electronic speed

control which activates when the battery voltage drops below a determined

level, cutting power to the motor, but still providing power to the receiver and

servos, allowing the aircraft to be landed safely.

MTOM: Maximum Take Off Mass

Pitch: The rotation of the aircraft nose up or down, controlled by the elevator.

Pushrod: A rod which is connected between the servo and control horn.

It slides back and forth to move the control surface, and may be routed

through guides or tubes to prevent exing.

Range Test: Test to check the transmitter and receiver are functioning properly.

The test is done by setting the transmitter to a low-power mode and testing

the control function from a set distance.

Receiver: an electronic device installed in the aircraft which decodes the

control inputs sent from the transmitter and sends the inputs to the servos.

Roll: Left and right rotation of the aircraft around the longitudinal axis.

Rudder: Control surface found on the trailing edge of the vertical stabilizer.

Right rudder control causes the nose of the aircraft to turn to the right. Left

rudder causes the nose of the aircraft to turn left.

Sensor-Assisted Flight Envelope (SAFE) Technology: Offers smoother

ight capability that battles windy conditions for you and multiple modes so

you can y with the level of protection and assistance that suits any given

moment of the ight.

Servo: Electronic component which translates the control signals from the

receiver into movement of a control surface. The servo is connected to the

control surface with a pushrod.

Throttle: Control input which regulates the speed of the motor. A higher

throttle setting makes the motor rotate faster, thus increasing forward thrust.

A lower throttle setting makes the motor rotate slower, thus decreasing

forward thrust.

Transmitter: Control unit held by the pilot which sends signals to the aircraft.

Yaw: Left or right rotation of the aircraft nose, controlled by the rudder.

Z bend: A Z-shaped bend at each end of a pushrod for the purpose of

connecting it to a servo arm or control horn.

AMA National Model Aircraft Safety Code

Effective January 1, 2018

A model aircraft is a non-human-carrying device capable of sustained ight within visual line of sight of the pilot or spotter(s). It may not exceed limitations of this

code and is intended exclusively for sport, recreation, education and/or competition. All model ights must be conducted in accordance with this safety code and

related AMA guidelines, any additional rules specic to the ying site, as well as all applicable laws and regulations.

As an AMA member I agree:

• I will not y a model aircraft in a careless or reckless manner.

• I will not interfere with and will yield the right of way to all human-

carrying aircraftusing AMA’s See and Avoid Guidance and a spotter when

appropriate.

• I will not operate any model aircraft while I am under the inuence of

alcohol or any drug that could adversely affect my ability to safely control

the model.

• I will avoid ying directly over unprotected people, moving vehicles, and

occupied structures.

• I will y Free Flight (FF) and Control Line (CL) models in compliance with