The battery company said, in a press release, the small aircraft was conceived for long flights at a stratospheric altitude of 12km or more. The airplane engine is powered by solar cells on the ...

The company claims that the aircraft is designed to operate as high-altitude, long ... so quickly. During the first flight at Spaceport America in New Mexico, U.S., in recent weeks, the solar ...

“Just add solar panels to the wings” is a popular suggestion for improving the flight times of fixed-wing drones. However, the reality is not so simple, and it’s easy to hurt rather than ...