The rotary engine has been absent on the frontline for quite some time, and it's on the way back. But not with Mazda.

Find out how emissions regulations killed Mazda's three-rotor 20B Wankel rotary engine, just as it was getting started in the ...

Six different sizes and types of rotors were die cast using pure, highconductivity copper. Tests showed a 1.2 to 1.7 % improvement in efficiency. When it comes to energy efficiency, every little bit ...

Sagita has built an RC model of its concept. A new helicopter concept with less complex mechanics aims to make aviation safer, simpler, and easier to maintain. Sagita Helicopters in Belgium is behind ...

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 ...

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 ...

MTU Aero Engines is convinced that the dynamics of the narrowbody market are likely to prevent an open-rotor design from being adopted on a future single-aisle due to the need to preserve customer ...

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 ...