Subscribe to our newsletter for the latest sci-tech news updates. SINTEF has now designed and manufactured new measuring equipment for model testing of contra-rotating propellers. This could be good ...

During World War II, Daimler-Benz explored an unconventional fighter concept built around a massive experimental V16 engine.

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 ...

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 ...