Inverted Quadcopter? That generally means a crash is soon to follow. Not so for a new crop of quadcopter fliers. These new quadcopters are capable of sustained inverted flight. We’ve seen inverted ...

Add articles to your saved list and come back to them any time. The pilot of a light plane that crashed into a suburban street in Sydney's south-west last month knew 15 minutes before he died that the ...

A Review of Hydrodynamic Mechanisms, CFD Modeling, and Coastal Engineering Implications Seabed scour caused by propellers is ...

Marine propulsion research & development company, Contrapel Ltd has released details of its new propulsion system for boats – the system set to make future boats more economical, manoeuvrable, safer, ...