I though this was kind of interesting.

http://www.ndep.us/Power-Harvesting-Induction-Magic

The video in the link is to a video of a camera that uses electromagnetic induction to supply power to the camera from the power lines. Near the end of the video they are showing a 4 armed copter that has two motors with blades on each arm to make an octocopter. They said it will be able to lift the 10 pound camera load with no problem. Has anyone else ever had this setup with more than one motor on an arm of a quadcopter?
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