Why Rotary Engines Use Two Different Spark Plugs

Rotary engines differ from conventional ones in many respects — and one of them is the fact that they use two different spark ...
Road & Track

This Rotary-Engine Sedan Was a Revolution (and a Total Failure)

Fewer than 38,000 of NSU’s revolutionary Ro80 models were built in the 10 years between its debut late in 1967 and the day in 1977 that NSU’s corporate parent, Volkswagen-Audi, turned the factory that ...
Jalopnik

The Pros And Cons Of Rotary Engines

In a world dominated by pistons, the rotary engine was something different for motorists. It was the vision of German engineer Felix Wankel, built on the belief that the up-and-down motion of pistons ...
Hosted on MSN

How the rotary engine works — and why it’s so different

Pop the hood on a classic Mazda RX-7 or RX-8 and the engine bay looks oddly empty. That is the charm of the rotary engine: a compact lump of metal that trades pistons and valves for a spinning ...