In an opposed-piston engine, two pistons are placed ... the Achates engine as an improvement on the Junkers Jumo aircraft engine that debuted in 1890. "It had an efficiency that exceeded any ...

and Stationair are powered by piston engines. These are 4- to 6-cylinder direct drive horizontally opposed, air-cooled engines. Depending on the aircraft requirements, these engines may be ...

Some are promising, one is not. The Napier is a complicated extrapolation of a basic opposed-piston engine. Your average “engine” has cylinders and pistons lined up with a cylinder head on top ...

In general, piston-driven aircraft are much less ... cylinders arranged in a horizontally opposed configuration, not unlike the internal combustion engines found in many other types of vehicles.

It was the largest land-based transport aircraft to fly during the ... 6 Junkers Jumo 207C six-cylinder liquid-cooled opposed ...

Invented more than 100 years ago, the opposed-piston engine had its heyday during World War II, powering submarines and aircraft carriers. Despite its exceptional fuel efficiency, the engine never ...