Sky’s the limit for Cuba’s plucky DIY drone makers

It’s a bird! It’s a plane! It’s… actually a sparrowhawk-shaped drone (screech and all). And it was built by a group of creative, driven Cuban engineers using scrap materials they rummaged up on the boycott-hobbled island nation.

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This single-rotor drone is made possible by four servo-activated air vanes

The hobby drone industry has really converged on the quadcopter as its go-to design. But just like birds, drones continue to evolve from their lumbering ancestors. Could evolution have taken a different path? What’s better than four propellers?

How about just one?

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