Rated between 150 and 160 horsepower at 2,700 revolutions per minute (RPM), the engine features a 320-cubic-inch displacement with a bore and stroke of 5.125 inches by 3.875 inches, respectively.

Just FYI — the 915 iS is not currently the most powerful engine in Rotax's small aircraft line. That title actually belongs to the 916 iS/c, which, at a surface level, has a lot in common with ...

Hermeus completed what it said was a major test of a new-design engine, bringing the startup one step closer to building reusable hypersonic aircraft. During a series of tests at the Notre Dame ...

GE Aerospace is developing a new type of aircraft engine that uses an “open fan” concept that is more aerodynamic than traditional engines. NISKAYUNA — Scientists and engineers working for ...

The Lycoming O-320 engine, a four-cylinder, horizontally opposed, air-cooled engine, is so reliable that they are still in use today despite being 70 years old.