Despite its critics and moves toward electrification, the internal combustion engine is not yet dead. Though its design for passenger vehicles may have begun to reach its apex with Mazda’s Skyactiv ...

The Army’s Improved Turbine Engine Program (ITEP) provides Army Aviation the power to operate in Multi-Domain Operations (MDO) with longer range and endurance, providing ground forces the opportunity ...

Publicity photo of a first-generation Union Pacific GTEL locomotive and a circa-1923 electric auto in Fremont, Neb. The auto was owned by a local woman and the locomotive was on its way west to haul ...

Anyone who appreciates simplicity of design and efficiency of operation has to like small two-stroke-cycle engines that power construction tools such as cut-off saws, rammers and breakers. Producing ...

There's an old saying in engine tuning that when adjusting the mixture of your engine you can be too rich a bunch of times, but only too lean once. With that in mind, determining the air-fuel ratio ...