Urban prepares to let AirMule UAV off the tether

http://www.flightglobal.com/articles/2010/01/13/337031/urban-prepares-to-let-airmule-uav-off-the-tether.html

 

Designed for cargo and medical evacuation missions, and formerly called the Mule, the UAV completed the tethered tests in wind speeds of up to 50kt (92.5km/h). It was hovered autonomously at an altitude of 2ft (60cm) using its fly-by-wire control system, which employs inertial measurements augmented by GPS navigation