Da-Vinci tri-copter is built for urban warfare - Defense Update:
Drone with HD Camera 50 Times Zoom Electrical Control Camera Altitude Hold Headless One Key Take-off Landing Tricopter : Amazon.it: Giochi e giocattoli
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Build a Tricopter to Inspect the Health of the Plants in Your Garden | by Cameron Coward | Medium
BlackOps tricopter claims "swoopier" flight than quadcopters
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