Bore and Stroke: 140 mm (5.51 in.) x 130 mm (5.12 in.) During World War II, the Mitsubishi Army Type 1, Ha 31 Model 21 (Ha 102) powered the Mitsubishi Ki-46-II/II KAI, Army Type 100 command ...

Click to open image viewer. CC0 Usage Conditions ApplyClick for more information. Beginning around 1922, J.F. Irwin’s Irwin Aircraft Company of Watsonville, California designed and provided blueprints ...

The 20th century was the age of the internal combustion engine. The fruits of industrial progress produced power plants tasked with everything from running generators to powering warplanes. The First ...

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 ...

When learning about the design of a machine or mechanism, reading and watching videos is certainly effective, but it’s hard to beat hands-on experimentation. In the video after the break, [Brick ...

Honda might be looking back to early aeronautics in its latest bid to make variable compression engines simpler and sturdier. The engine is designed to take advantage of the simple crank design of ...