Phil Jermyn (QuadPod, top right)
Getting Started with Multicopters
Tips on how to build, buy, fly, and spy with multirotor R/C helicopters.
A MULTICOPTER IS A FLYING ROBOT resembling a wagon wheel — without the wheel. It has a central hub with electronics, power, and sensors, onto which are mounted arms that hold propellers to provide lift. The number of arms gives the name: a tricopter (trirotor) has 3 arms, a quadrocopter or quad-copter (quadrotor) has 4, a hexacopter 6, and an octocopter 8. There are other variations, but these are the most popular setups.
They’re also called multirotors, which arguably is the correct term, ...
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