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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.

Cog - Cogging --

Results when one of the comm segments (poles) of a brushed electric motor isn't charged by the brushes, causing a dead spot in the energizing cycle. This is evident by 'stuttering', and is commonly caused by brushes that are too narrow. All brushed motors have some amount of cogging (most motors only energize the comm about 90% of the time), but less cogging means smoother acceleration and coasting. Brushless motors a notorious for cogging at low speeds.
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