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Airbus solar airplane crashes after 64 days of flying

The 25-meter-wide Airbus solar drone, which is remotely controlled by satellite, is entirely covered with PV modules.

From pv magazine France

After 64 days of continuous flight, a solar-powered drone-satellite developed by Airbus Defense and Space crashed in the desert in the US state of Arizona on Aug. 18. The incident did not cause any injuries.

“The prototype aircraft’s flight ended when the Zephyr 8 UAS encountered events that led to its unexpected shutdown,” said the US Army Command in a statement.

The drone was launched from the Yuma Proving Ground (YPG) test site in Arizona on June 15. The unmanned aircraft soared more than 60,000 feet (about 18 km) over the southern United States, the Gulf of Mexico, and South America, before returning to its starting point. Prior to the crash, air traffic control data showed the drone flying at an unusually low altitude.

“The military and its partners have collected invaluable data and increased knowledge about the endurance, battery efficiency, and station-keeping capabilities of the aircraft at high altitudes,” said said Michael Monteleone, director of the military program overseeing the flight. “This knowledge will allow us to continue to advance the requirements for reliable and modernized stratospheric capabilities for our soldiers.”

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The drone, which is remotely controlled by satellite, weighs 75 kg. It has a wingspan of 25 meters and is entirely covered with PV modules with multi-junction cells. The system enabled the aircraft to travel more than 55,000 km, or more than one trip around the Earth.

The Zephyr 8 drone managed to double the previous endurance record for an unmanned aircraft, which was just under 26 days. Within a few hours, it would have been able to break the record for the longest flight in history, held by two American airmen, at 64 days, 22 hours, 19 minutes and five seconds in the sky.

Unmanned aircraft are drawing interest from the military and telecoms sectors. They can be used for high-resolution observation, surveillance, and high-speed communication services.

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Source: pv magazine