Drones aren’t anything new—multi-rotor aircraft are becoming a bigger part of people’s lives every day. From the latest batch of up-and-coming urban air mobility companies to hobby applications, ...

Sagita takes a unique approach to helicopter design by using dual counter-rotating rotors each powered by separate concentric turbines. Sagita has built an RC model of its concept. A new helicopter ...

For decades, single-piece rotors have been the mainstay of light- and medium-duty truck brakes. Now, two-piece rotors — first developed for NASCAR and other car racing sports — are slowly making their ...

BMW has a novel way to hold the magnets in place in an axial flux motor, with an eye toward efficiency and long-term durability. Being a central part of the motor core, rotor design is critical to ...

FORT RUCKER, Ala. -- Before turbine engines took over the world of rotor-wing Aviation, a proof-of-concept system revolutionized helicopter flight with a radical new rotor design. The Lockheed CL-475 ...

Arizona's Rotor X wants to step up from being the world's biggest kit helicopter manufacturer and get into the eVTOL game, and to do so, it's put forth a design it claims is "dramatically more ...

The fundamental design principles behind rotary-wing aircraft date back to the Renaissance, with some of the earliest-known designs belonging to Leonardo da Vinci. Naturally, technology has ...

Screw rotor systems are critical components in compressors, vacuum pumps and various heavy-duty machinery. Their design and subsequent machining require an intricate balance between theoretical ...

In recent months, General Motors, Porsche, Mercedes-Benz, and Hyundai have all submitted patents for improved rotor designs for electric motors in the quest to improve power and efficiency. BMW has ...

We’re witnessing a golden age for urban mobility startups, from two-wheeler manufacturers to eVTOL (electric vertical take-off and landing) developers. So, why not combine them? A mobility startup is ...