The rotary engine is perhaps one of the most polarizing motors to have ever been commercialized. From its checkered past to its intent to live on as a range extender, the small spinning triangle has ...

For more than a decade the name Wankel has popped up whenever car enthusiasts start talking about advanced-design automotive powerplants. The theory of the Wankel engine goes back to 1954 when Dr.

Language is an imperfect medium, but it's what we've got, so let's go with it. Determining the swept volume of inventor Felix Wankel's rotary engine can generate more arguments than claiming what a GT ...

Wankel rotary engine powered thousands of aircraft. One of several problems: It spewed castor oil on its pilots.

There are a lot of strange automotive designs out there, but this defunct engine from the '70s may just be the weirdest one ...

Rotary engines such as the Wankel have strange shapes that can be difficult to machine (as evidenced by the specialized production machines and patents in the 70s), which means it lends itself well to ...

A report from TopSpeed has us musing about the future of the motorcycle community when it comes to rotary-powered engines – or if there’s even a potential for a resurgence in the cards at all. There ...