The propellers of the world's ships and boats create a constant drone that disrupts ocean life. New propeller designs based on loops could one day quiet that drone and be more fuel efficient. Sharrow ...

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

When one thinks of the average airplane, odds are that propellers are part of that mental image. They've been a crucial component of airplane construction from the moment air travel found its footing ...