Airlines are a major source of airborne pollution, and making them more sustainable is a goal of governments and the aviation industry alike. There have been several proposed solutions to this problem ...

The traditional piston engine has garnered the vast majority of attention and application in the internal combustion age, but there was another: the Wankel rotary engine. German engineer Felix Wankel ...

For CFM International, the decision whether to stay with a turbofan or move to an open-rotor engine to power the next generation of single-aisle airliners will come sooner rather than later. The ...

You hear endless myths about the Mazda RX-7, from breathless praise of its “magic” to horror stories about blown apex seals.

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 ...

Engine rotor-overspeed certification standards have been amended by FAA. The new rule, which goes into effect Sept. 16, establishes uniform rotor-overspeed design and test requirements for aircraft ...

This is the strangest engine you've likely never heard about. Back in the late 1960s and early '70s, a number of automakers were experimenting with odd engine setups. Heck, that happens all the time, ...

In 1991, little Mazda stood at the top of the world. It won the 24 Hours of Le Mans with its banshee Mazda 787B prototype, and here is the 700-horsepower quad-rotor engine that got it the win. This is ...

Rob Dahm, notorious rotary-powered car builder, has firmly jumped into the deep end of the pool with his latest project: The world's only 15.7-liter, tri-turbo Y12 rotary engine. If that doesn't make ...