Stingray 500 3D Quadcopter Curtis Youngblood

The Stingray 500 by Curtis Youngblood is a full collective pitch 3D quadcopter allows not only normal quad flight but also aerobatic  maneuvers loops, rolls and inverted flight.  It achieves this using variable pitch props. Specs: Span  –  490mm (diagonal rotor to rotor) Blades  –  110mm Frameset  –  85% carbon and metal design Battery – 4S 2200

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