Meet the Birotary, a crazy new and complicated engine that has three cylinders arranged like a star, a rotating block, a ...

John Neff is a veteran automotive journalist with over two decades of experience leading major outlets such as Autoblog and Motor1. Beginning his career as Editor-in-Chief of Speed, Style & Sound, he ...

The new contract covers the Post-Critical Design Review phase of the B-52 Commercial Engine Replacement Program, which will replace the TF33 engines with ...

The U.S. Air Force has locked in its next move to keep the venerable B-52 bomber flying well into midcentury, awarding Boeing roughly $2 billion to carry the re-engining effort into its next phase.

The MarketWatch News Department was not involved in the creation of this content. Washington, D.C., Nov. 07, 2025 (GLOBE NEWSWIRE) -- Internal combustion engines will continue to be the prime power ...

Engine manufacturer Pratt & Whitney will use new digital design technology to accelerate its work on the XA103, its submission for the U.S. Air Force’s Next Generation Adaptive Propulsion (NGAP) ...

MV Agusta revives a dual-crank engine design with a radical five-cylinder square concept, proving that internal combustion innovation is alive and well. The square engine layout uses dual crankshafts ...

OHV stands for overhead valve, and these types of powerplants can also be called pushrod engines. OHV engines have the intake and exhaust valves located above the camshaft, which is in the engine ...

Variable cycle engine design embodies a transformative approach in aero‐propulsion, enabling engines to adapt their thermodynamic cycle to meet diverse operational demands, from fuel efficiency to ...