Sharrow's extraordinary looped propellers were already some 30% more efficient than traditional designs – and now the company has put two of them together into a coaxial, contra-rotating prop that ...

French startup company Price Induction is studying an engine with a two-stage contra-rotating fan as a way to reduce fuel burn on very light jets. The Taor 380-1 would have a thrust of 720 pounds and ...

Precious Metal is a staple of the air racing community. The highly modified P-51's striking yellow and polished paint job and its contra-rotating propellers are features that make it stand out, but ...

When we think of Bugatti, we generally think of classic sportscars like the T13 and modern day supercars such as the all-conquering Veyron. However, back in the late 1930s, Ettore Bugatti also set out ...

Propellers affect more than speed and fuel economy. Here's how to choose the best propellers for multiple outboards. The post Choosing Props When Running Multiple Outboards appeared first on Boating ...