Royce’s award for manufacturing turboshaft engines, parts, and installation kits, providing the power for a series of U.S.

Does the new 1250-horsepower, 233-mph Corvette ZR1X get your pulse revving toward redline? In spring 1970, you’d likely have ...

Is this high-revving, two-stroke, flex-fuel, 106-pound, 173-horsepower, parallel-twin engine really all it’s cut out to be?

Ursa Major secures a $32.9 million contract to enhance Talon-A with upgraded Hadley H13 rocket engines for better reusability.

This High-Tech Little Engine Could Herald the Return of the Two-Stroke The Alpha Otto Rev Force features forced induction, rotary exhaust valves and can run on a variety of different fuels.