DALLAS—Bell’s 214ST is set to become the latest legacy helicopter to go back into production to address global shortfalls in ...

Could there possibly be a rotary engine with 12 rotors? The answer is yes, and here’s everything we know about it including how much HP it could have.

Remember rotary engines? The Felix Wankel-developed (stop tittering at the back) rotating engine design as flirted most famously with by the phenomenally fast JPS Norton racers, not to mention the ...

If there's one thing forever associated with the Wankel rotary engine, it's Mazda ... mated two RC2-206 powerplants together on a common shaft, creating a 585 cubic-inch four-rotor capable ...

Many of you have seen the process of making this rotary valve engine with different intake and exhaust system and how I tried to start it. If not, then let's watch the previous video first: <a href=" ...