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RC Glossary


New to the RC Hobbies? What does buggy, bulkhead, nitro mean in radio control car hobbies? Check out the glossary for remote control cars below.

Servo Arm - Servo Horn --

The 'arm' of a servo. A servo horn has splines in the center allowing it to mesh with the splines on the servo output shaft. The horn transfers the servos' movement to the linkage, and usually has a variety of linkage mounting locations to adjust throw. Different manufacturers use a different number of splines on the output shaft, and a matching horn (or adapter) must be used. There are 3 basic spline designs - 23 spline (SANWA / ACOME, JR, KO PROPO, and AIRTRONICS), 24 spline (HITEC), and 25 spline (FUTABA).
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