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High-altitude platform station
Videos
A high-altitude platform station, also known as atmospheric satellite, is a long endurance, high altitude aircraft able to offer observation or communication services similarly to artificial satellite
Wind profile variation with altitude from NASA, showing minimum wind speeds between 17 and 22 km (56,000 and 72,000 ft). Although absolute values will vary, the trends shown are similar for most locations.
Wind profile variation with altitude from NASA, showing minimum wind speeds between 17 and 22 km (56,000 and 72,000 ft). Although absolute values will
Capable of flying up to 60,000 ft (18,300 m) more than 34 hours, the RQ-4 Global Hawk was put into USAF service in 2001.
Capable of flying up to 60,000 ft (18,300 m) more than 34 hours, the RQ-4 Global Hawk was put into USAF service in 2001.
NASA Pathfinder Plus
NASA Pathfinder Plus
NASA Centurion
NASA Centurion
Airbus Zephyr
Videos
The Zephyr is a series of high-altitude platform station aircraft produced by Airbus. They were designed originally by QinetiQ, a commercial offshoot of the UK Ministry of Defence. In July 2010, the Z
High-altitude platform station
…HALE aircraft is the Northrop Grumman RQ-4 Global Hawk. There are many solar powered, lightweight prototypes like the NASA Pathfinder/Helios, or the Airbus Zephyr that can fly for 64 days; few are as advanced as these. Conventional aviation fuels have been used in prototypes since 1970 and can fly for 60 hours…
An artist's impression of the UAV
An artist's impression of the UAV