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 ...

Boeing’s 150-seat 7J7 concept (left) would meld prop-fan technology and lightweight composite structure to deliver big gains in fuel efficiency. The Boeing Company LOOMING LIKE AN ALIEN CRAFT ABOVE ...

Unique counter-rotating design to help mitigate technical risk of integrating engines on to airlifter Airbus Military has chosen a unique "handed" propeller concept for the A400M airlifter in a bid to ...

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 ...