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 ...

At the very crux of engineering is the desire to problem-solve, optimize, and squeeze out every bit of efficiency possible from the system being built. Aircraft design and aeronautical engineering ...

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 ...

Marine propulsion research & development company, Contrapel Ltd has released details of its new propulsion system for boats – the system set to make future boats more economical, manoeuvrable, safer, ...

Here’s an interesting footage filmed form inside a Russian Tu-95 Bear bomber like the ones that skirt northern Europe’s airspaces every now and then. Although it does not show anything special about ...

The Russian Tu-95 'Bear' isn't just a relic of the Cold War, with the potential for a nuclear payload capable of untold devastation. It's eight contra-rotating propellers also enable to it hold the ...