These strangely-shaped twisted-loop propellers look like a revolutionary (sorry) advance for the aviation and marine sectors. Radically quieter than traditional propellers in both air and water, ...

If you've ever visited a World War II museum and seen some of the dummy bombs on display, you may have noticed a distinct, unusual characteristic on some of them. Some of these bombs possessed tiny ...

There are few companies that produce a product or service that truly innovates in the realm of recreational boating. To be fair, powerboating is a mature activity, almost 200 years old. By now, it’s ...

Solar Impulse 2, the plane powered only by the sun, has dominated the electric aircraft news cycle recently, starting its 5-month, 20,000-mile journey around the world this month. But they're not the ...

After debuting a number of new versions of its proprietary propeller in 2024, Sharrow Engineering has dedicated much of 2025 to expanding its US production base and operations. It moved into a new ...

No matter what you read or hear, there is still a fair bit of pseudoscience in propeller selection. Chasing the correct combination of speed and smoothness generated from a propeller can be an ...

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 ...

Controllable-pitch propellers have been developed and produced on the Baltic coast of Germany since 1962 – initially in Rostock, and then in Wismar from 1964. The first units were manufactured for 86 ...

Boats are propelled forward by various power sources, such as human power, wind power, and internal combustion engines. Nowadays, even electric boats are coming onto the scene. Propulsion for ...