Controllable, or Variable Pitch Propellers are just one type of propulsion used on ships. Controllable pitch propellers vary the angle of each blade to control the amount on thrust produced by the ...

Forbes contributors publish independent expert analyses and insights. Writing about vertical flight aircraft & advanced aviation technology. The EHang 184 electric VTOL aircraft has two ...

Controllable pitch propeller. Source: MAN Energy Solutions In a typical LNG carrier, permanent magnet technology improves efficiency by 2-4% compared to synchronous machines. Dr. Jussi Puranen, Head ...

Scientists say they have designed a propeller system that can replace electrical and diesel -operated engines currently used to drive ferries ploughing the seas on pre-determined routes. The ...

Electrification is seen as having an important role to play in the fossil-free aviation of tomorrow. But electric aviation is battling a trade-off dilemma: the more energy-efficient an electric ...