If you look at aircraft from the Second World War or ... That's because a radial engine is air-cooled, meaning it doesn't need the water coolant hoses and tanks that other engine types (like ...

The Navy was keenly aware of the liquid–versus–air-cooled controversy and even more sharply focused on reducing the size and weight of all its aircraft. Radial engines lacked all the plumbing ...

Air-cooled engines were once commonplace in the auto and moto industries. The most well-known were the Porsche flat six, VW flat four, Corvair, and numerous motorcycle engines, from BMW to Harley ...

On this day in aviation history, 89 years ago-March 27, 1936-the first flight of the Fokker D.XXI took place. Designed in 1935 to meet a request from the Royal Netherlands East Indies Army Air Force, ...

Below, Taylor guides you through a tour of this pioneering aircraft, giving you a detailed ... early airplanes carried very lightweight air-cooled engines. They wanted a lightweight engine because ...

With massive 16.5-foot-diameter wooden propellers driven by two 80-horsepower Continental A-80 air-cooled engines ... propellers were so large that the aircraft rested at a 22-degree-upward ...