As with many things in technological development, identifying the most revolutionary designs depends in part on what aspects one wants to stress. And when it comes to commercial aircraft engines, it ...

The idea of a hybrid-electric engine for supersonic aircraft may elicit a similar initial response, but there is some very firm engineering logic behind it. Put simply, conventional supersonic engines ...

Power rating: 33.6 kW (45 hp) at 1,300 rpm Displacement: 4.6 L (279 cu in.) Bore and Stroke: 90 mm (3.5 in.) x 120 mm (4.7 in.) Alessandro Anzani, an Italian who originally built motorcycles in France ...

Listed at $340,000, this 2009 WACO YMF-5 is ready for a new home. It offers a unique opportunity to own a piece of living ...