The Martin JRM-3 Mars is offered for sale by Platinum Fighter Sales for $5 million, and yes, it’s ready-to-fly. The plane’s life began originally in the lead-up to World War II, when the US Navy ...

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 ...

I picked up some surplus WWII radial engine poppet valves (think late WWII bomber engines... the valves are HUGE). They were in the original packaging, and coated with protective goo. It's a dark ...

Bore and Stroke: 156 mm (6.14 in.) x 156 mm (6.14 in.) The BMW 801 was the first German high-performance, air-cooled radial engine of new design introduced after the start of World War II.

The Chrysler IV-2220 was conceived as a 16-cylinder Hemi aircraft engine that could have transformed American fighter performance in the final years of World War II, yet it never progressed beyond ...