Facebook's internet drone crash-landed because it was windy

Facebook celebrated the first full test flight of its solar-powered internet drone, Aquila, in July, but things didn't go as smoothly as they could have. The drone completed a 96-minute flight in Yuma, Arizona, but it ended up crash-landing because of a structural failure in the right wing, according to today's report from the National Transportation Safety Board. The NTSB announced in November that it would investigate the accident. Aquila's only landing mode is "autoland," meaning the aircraft senses things like wind speeds and temperature, and adjusts for the smoothest landing possible. During its debut test flight, operators expected wind speeds of 7 knots.