At Old Rhinebeck Airdrome in Red Hook, New York, sits one of the premier collections of vintage aircraft in the United States. Director of Maintenance Mark Mondello is one of the key people ...

Astron aerospace has shown a partial prototype of a new rotary combustion engine it claims runs at an extraordinary 60% thermal efficiency, burning totally clean with zero NOx emissions and nothing ...

Rotary engines (also known as Wankel engines and Wankel rotary engines) are quite different from piston or "reciprocating" engines. One of the distinguishing features is that they don't need valves to ...

It's the stuff of legend: goggles, leathercaps, and fluttering white scarves, brightly-colored canvas-and-wood aircraft clashing in battle, just barely past the fledgling stage of human flight. The ...

A Wankel engine is a type of rotary engine, but not all rotary engines are Wankel engines. Wrapping your mind around this idea will help you to better understand the similarities as well as the ...

Click to open image viewer. Power rating: 37 kw (50 hp) at 1,200 rpm Displacement: 7.98 L ( 488.5 cu in.) Bore and Stroke: 110 mm (4.33 in.) x 120 mm (4.73 in.) The first successful rotary engine is ...

Power rating: 96.9 kW(130 hp) at 1,250 rpm Displacement: 16.3 L (992 cu in.) Bore and Stroke: 120 mm (4.7 in.) x 160 mm (6.3 in.) Engineering inventor Pierre Clerget and industrialist Eugene Blin ...

The rotorcraft engine business, like the helicopter industry it serves, has been notoriously slow to develop new models and refresh its products over the decades. But now, as new propulsion concepts ...