A measure of a battery's total capacity. The higher the number (e.g., 600 mAh, 1,500 mAh) the more charge a battery can hold and usually, the longer a battery will last under...

Megahertz. One hertz represents one cycle per second, and a megahertz is 1,000,000 hertz.

Two radio control channels can be coupled together so that they move together when only one control channel is activated. Many 1/4 scale models require a combination of aileron and...

Internal memory or capacity available in the transmitters to store different aircraft settings and parameters.

A safety feature that prevents a pilot from flying a model when the model selected in the radio is not correct.

A device that plugs into the back of many radios that determines the broadcast frequency and band.

Refers to a distance on a model forward or aft of the balance point.

The distance between where a force is applied and the Center of Gravity. The distance from the Elevator hinge line to the Center of Gravity is the Pitch Moment Arm.