The fan blades are attached at their tips to a ring that rotates inside a static shell, suspended by force fields generated by permanent magnets. The fan and rotating shell, or rotor assembly ...

There are more tricks in the tail of this Bell creation, with its four electric fans in four tiny windows. A regular rotor varies how much thrust it’s producing—whether it’s enclosed in a ...

Testing of EDAT (or electrically distributed anti-torque) – which replaces the traditional mechanical tail rotor with four electric-powered fans – has ... components. As part of the ...

An experimental new system replaces the tail rotor with four electric fans, however, potentially making for both safer and quieter flight. First of all, why do helicopters have tail rotors?

Now veteran helicopter manufacturer Bell has a design to replace the mechanically driven tail rotor assembly with four much smaller, shrouded electric fans. The new system, unveiled this week ...

It was never adopted, in part because of concerns about much greater noise from the unsheathed fan. More recently, Safran conducted open rotor research ... and ceramics. An electric generator ...

In a recent blog post, McIntosh points out that yes, the Lilium design, with its small ducted fans and high disc loading (a ratio of overall weight to the area of the rotors), uses twice as much ...

The design incorporates tilting rotors at the wingtips and four fixed ... The aircraft features wide-set main landing gear, and portable electric fans are connected via ducts to the wingtip ...

All types of electric-vehicle motors share two major parts. The stator is the motor's stationary outer shell, whose housing is mounted to the chassis like an engine block. The rotor is the lone ...