For the first time in aviation history, Boeing flew a manned airplane powered by hydrogen fuel cells. Although unmanned fuel-cell based aircrafts were flown in the past, this manned flight is an important milestone in aircraft engineering, as fuel-cell vehicles ...

A Maryland based company is developing a new type of Unmanned Aerial Vehicles (UAV) that can also be manned if necessary. The new aircraft also has the ability to operate in groups of up to 12 air vehicles, allowing for ...