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 ...

Abstract: A contra-rotating propeller (CRP) offers higher propulsion efficiency compared to a single propeller. This paper presents a novel underwater CRP propulsion system that integrates a permanent ...

What became the Aeroproducts Propeller Company began in 1935 as Engineering Projects, Inc. of Vandalia, Ohio. It was founded by two brilliant engineers, Werner J. Blanchard, who spent several years ...

WHEN A MODIFIED MD-80 airliner flew at the 1988 Farnborough air show in Britain, it was supposed to represent the future of air travel. One of its rear-mounted jet engines had been replaced with an ...

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 ...