The Allied Aviation XLRA was a WWII US Navy assault glider designed to carry Marines during amphibious landings, but changing battlefield realities led to its cancellation.

Description: The H.A.W.K. aims to develop a hybrid rocket glider system that can safely and accurately deliver medical supplies to remote locations. The system will target applications such as ...

The rocket, a reaction-propulsion device that carries all of its propellants internally, has been around for almost a millennium since its invention in China. But the twentieth-century saw a ...