3 month endurance Solar enegy UAV
17 July 06,www.qinetiq.com
Three-month endurance the aim for QinetiQs Zephyr UAV
....
QinetiQ revealed today that it is currently engaged in a
development programme for the Zephyr High-Altitude, Long-Endurance
Unmanned Aerial Vehicle (HALE UAV) to ready its flight controls and
power systems for extended flight.
The developments build on Zephyrs recent successful trial at the
White Sands Missile Range, New Mexico, USA which proved that a
low-cost UAV can provide persistent operations at high
altitudes.
A particular focus of the current programme is further refinements
to Zephyrs rechargeable batteries with the aim of flying for weeks
and then months. Zephyr uses solar power to fly at altitudes in
excess of 60,000 feet during the day while storing sufficient
energy in its rechargeable batteries to power it overnight without
falling below 50,000 feet, so staying above normal commercial
airlanes and most weather.....
previouse test
10 inch
resolution and each cost euro 1 million only,this
Chinese essay said.