Following an initial hour-long, battery-powered flight, AeroVironment’s Global Observer unmanned aircraft is beginning a test program planned to culminate in a week-long flight in the stratosphere using liquid-hydrogen fuel. The flight debuts an innovative approach to persistent surveillance and marks a dramatic departure for a company that dominates the market for small, hand-launched UAVs. The Global Observer (GO) is flying from Edwards AFB, Calif., where it will undergo an operational ...


You must be a paid subscriber to access "Global Observer Hydrogen UAV Begins Flight Tests".


Current Aviation Week Intelligence Network (AWIN) enterprise and individual members: please go to for access.


Not currently a subscriber? Click on the "Learn More" button below to view subscription offers.

Already registered? here.