Its unique radial flux motor concept uses a dual-rotor configuration to produce copious amounts of torque from a particularly compact, lightweight, cost-efficient package. Well beyond some specs ...

Carbon fiber rotor and stator structures and housing are key to Koenigsegg's new motor's impressively low weight.

While Rob Dahm’s garage is no stranger to monstrous rotary engines, including four-rotor units cranking out more than 1,000 horsepower, this one is mind-bending. Here we have a massive ...

That little single-rotor powerplant quickly evolved into the more typical two-rotor design one might see in a Mazda RX-7, for example. Then came a three-rotor, which first appeared in the Eunos ...

To avoid these core losses, DeepDrive’s motor replaces the stationary stator with a second rotor. The outer rotor resembles a cake pan and spins simultaneously with a ring-shaped internal rotor.

but few take the twin-motor tilt-rotor approach used by the V-22 Osprey. However, it remains a popular DIY drone for fans of the military aircraft, like [Tom Stanton]. He recently built his 5th ...