The Flite Test Beginner Series is brought to you by Horizon Hobby.
Understanding your R/C control system is very important. The better you understand your components, the better you’ll be able to troubleshoot problems down the road.
Communication link:
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You talk to the transmitter (TX)
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Transmitter talks to the receiver (RX)
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Receiver talks to the servos and ESC’s
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Servos moves your control surfaces
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The ESC drives the motor
Radio Control Transmitter (TX)
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The transmitter uses radio signals to remotely control the aircraft.
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The control sticks (gimbals) or switches on the transmitter are each assigned to a channel.
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The number of channels are how many functions or features can be used to control things on the aircraft.
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Different brand transmitters have different encryption and channel assignments. Usually they are not cross compatible.
Radio Control Receiver (RX)
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Receives the encoded radio signal from the TX and converts it to instructions for each component connected to the receiver.
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Each channel can control a separate function such as a servo, speed controller, lights, landing gear, etc.
Servos
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Servos comes in many different sizes and shapes, but they have a common purpose: to move control surfaces.
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Servos are usually classified by weight.
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9 gram servos are used in most park flyers and are the most common.
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Servos connect directly to the receiver (RX).
Electronic Speed Control (ESC)
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The ESC controls the speed of the motor as commanded by the receiver (RX).
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The main battery plugs into the ESC.
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Most ESCs have a built in BEC (Battery Elimination Circuit) that provides power to the receiver (RX) and servos.
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R/C Control System
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