HALE

AeroVironment has passed a critical milestone in the development of its Global Observer unmanned aircraft system.

The Global Hawk Pacific Program aims to study atmospheric conditions over the Pacific and Arctic oceans.

Zephyr, QinetiQ’s solar-powered, high-altitude long-endurance (HALE), Unmanned Air System (UAS) is currently in the air and setting a landmark unmanned flight duration record by demonstrating what is essentially perpetual flight.

With a wing-span of 150-feet, the hydrogen-powered aircraft will cruise at 150 knots, carry up to 450-pounds and stay aloft at 65,000 feet for up to four days

The first of the next generation of Northrop Grumman’s Block 40 configuration RQ-4 Global Hawk has successfully taken to the air for the first time with a flight lasting around two hours.

Qinetiq’s Zephyr solar powered high-altitude long-endurance (HALE) Unmanned Aerial Vehicle (UAV) has flown a world-beating three and a half day flight at the US Army's Yuma Proving Ground in Arizona.

Northrop Grumman's RQ-4 Global Hawk has successfully completed a flight lasting 33.1 hours at altitudes up to 60,000 - a record for a full-scale, operational unmanned aircraft.

Boeing has achieved a milestone in the development of its High Altitude Long Endurance (HALE) unmanned aircraft by successfully testing a hydrogen propulsion system in simulated conditions of 65,000 feet.

November 11, 2005 The Global Hawk UAV was still in its development stages when the needs of the war in Afghanistan saw it pressed into service. Since then, Gl