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Fluid dynamics can be a fairly complex arena to design within, sometimes going in surprising directions like this ducted fan that turned out better than the theory would have predicted, at least ...

Discover how to build a powerful ducted propeller using a washing machine motor in this easy-to-follow video. Watch as each step of the process is demonstrated, from removing and modifying the ...

Emil from The Practical Engineer purchased two electric duct fans for this project. A duct fan has a propeller-like rotor fan installed inside a cylindrical duct, and generates thrust by rotating ...

Ducted fans have emerged as a promising propulsion solution for modern Unmanned Aerial Vehicles (UAVs), particularly in applications that demand high safety, efficiency and low noise levels.

The ball drone seems well suited to an indoor environment, but we’re not sure if it has any real advantages over a quadcopter with ducted propellers.

Although personal drones are becoming increasingly popular, a lot of people are still understandably intimidated by their exposed propellers. That's why Polyhelo created the Nano Tornado.

Using two Rolls-Royce Model 250 series II C20B turboshaft engines, a diamond box wing and a ducted pusher propeller, the full-size VSTAR could cruise at 15,000ft (4,500m) and 288kt (155km/h) and ...

The open water characteristics for a large systematic series of Controllable Pitch Propellers (CPP) were recently measured at MARIN, including ducted propellers. Around the world people involved ...

The Defense Advanced Research Projects Agency (DARPA) funded contract has produced a 32-inch diameter ducted fan powered by a 70kW electric motor capable of producing over 430 pounds of thrust.

Darpa envisions quiet electric aircraft in the skies The artist's concept shows the VTOL X-Plane taking off by tilting the 24 fan propellers downwards to help it take off vertically and hover DARPA ...