2021年4月9日 · Ducted fans simply are not as efficient as propellers for static lift. They have smaller blade diameters and lower torque motors, and can compensate with higher RPM and more fan blades to provide the thrust needed, but this means that they aren’t as efficient as propeller blades when used on drones.

2025年1月30日 · One of the newest drone revolutions involves ducted-fan technology that eliminates exposed rotors entirely, making it possible to construct drones reminiscent of the anti-gravity hovercrafts that often show up in Marvel Comics.

2018年2月7日 · Shaped like a doughnut, the Cleo drone is essentially a ducted fan, with a pair of completely enclosed propellers (one on top of the other) and then a camera, battery, and electronics housed inside the shell.

2017年3月31日 · The reason not many drones use ducted fans is efficiency. Ducted fans are great for fast forward flight but not for static lift. Explanation: Yes, the 'duct' reduces losses at the blade tips, However, adds significant losses at the intake lip and exit where the adjacent air is pulled into the flow.

2018年8月31日 · Whatever we choose to call it — builder [tesla500] dubbed it the simultaneously optimistic and fatalistic “Ikarus” — it’s really unique. The monocopter is built around a 90-mm electric ducted...

2021年12月2日 · The Dronut X1 is the first bi-rotor ducted-fan drone, which means it’s the first drone without exposed rotor blades—and it's ready to ship.

Unlike traditional drones, the Dronut ® 's ducted fan design includes shrouded propellers that allow it to fly comfortably near people, in tight spaces and around sensitive equipment. Meticulously engineered for efficiency and safety, the Dronut ® will save you time, money, and even save lives.

2024年9月10日 · ARES is a tilt-duct design that uses a pair of ducted fans for vertical takeoff and landing (VTOL), as well as level flight. One of the fans is mounted on each side of a central fuselage section with small wings protruding further in each direction.

2021年11月23日 · The Cleo Dronut X1’s bi-rotor design isn’t the only element that differentiates it from more popular drones, it also uses a ducted fan design. That means, the propellers are completely covered, with no exposed blades, allowing it to operate safely around people, pets, and sensitive equipment.

2018年2月8日 · While not actually called a “Dronut”, the donut-shaped Cleo drone prototype was basically a ducted fan with propellors completely encased inside a duct, making it safe to fly inside and near people.