The radial engine may have fallen far out of favor for internal combustion development over time, but some military vehicles got impressive results from them.

In the 1940s and 50s, fire extinguishers were kept near radial aircraft engines during startup due to the risk of fire from oil pooling and over-priming. The large, wheeled extinguishers were ...

If you look at aircraft from the Second World War or earlier, you'll notice that many of them have engines with large frontal areas and cylinders arranged about the propeller crankshaft. This a radial ...

OSHKOSH, Wisconsin -- Idaho-based Kitfox Aircraft introduced one of the more interesting looking light sport aircraft here at Airventure by simply adding a radial engine to the front. The ...

Bore and Stroke: 125 mm (4.92 in.) x 170 mm (6.69 in.) This engine was a double form of the Z9, which had nine cylinders. Salmson aircraft engines that were produced in France starting in 1913 by the ...

ST. HELENA — To Mike Nieman, the smell of his large Pratt & Whitney “Wasp Major” radial aircraft engine running is “the smell of victory.” “That smell is of a working engine that made this country ...

To Mike Nieman, the smell of his large Pratt & Whitney “Wasp Major” radial aircraft engine running is “the smell of victory.” “That smell is of a working engine that made this country free,” said the ...

While Rob Dahm’s garage is no stranger to monstrous rotary engines, including four-rotor units cranking out more than 1,000 horsepower, this one is mind-bending. Here we have a massive, ...