Strange engine configurations that never reached production always makes for interesting reading. Here are our favorites.

Rotary engines (also known as Wankel engines and Wankel rotary engines) are quite different from piston or "reciprocating" engines. One of the distinguishing features is that they don't need ...

Since it looks like Mazda may very well revive the Wankel rotary engine as a range extender for electric cars, there's no better time to become reacquainted with the quirky internal-combustion engine.

The iconic rotary car engine, thought to have been consigned to the dustbin of impractical technology, is making a comeback in Japan from the very automaker that introduced the system as far back ...

Both 787Bs were powered by 2.6-liter four-rotor engines that were detuned to 700 horsepower. Afterward, the FIA announced that rotary engines would no longer be allowed at Le Mans.

Mazda is once again manufacturing the rotary engine, but before you get too excited thinking it’ll be found in a sporty RX-7 successor, best temper those expectations. That’s because the new ...

E is a rotary engine, constructed on the plan of Holly's patent, as shown in our former illustration. F is a rotary pump, also constructed aft0r the plan of Holly's patent. G is a take-off for a ...

Aviation motors may be broadly divided into two general classes— reciprocating and rotary motors. In the former the cylinders and crank case remain stationary while the crank shaft rotates ...

Mazda's persistent use of the rotary engine is perhaps the perfect example ... As of 2024, the Mazda6 is no longer on sale in North America. That's quite unfortunate, because it was one of ...

There's a hybrid system borrowed from Toyota, plus a copycat "strong hybrid" setup to come from within Mazda eventually, maybe with rotary engine power. In the U.S. and Japan, where Mazda has ...

Dremel is the biggest name in rotary tools and I've found some great deals happening during Amazon's October Prime Days.

The rotary engine became part of the soul of Mazda, and if it can be a bit flawed in operation, at least it has true ...