There are a few open source autopilots available these days for quadcopters and fixed wing aircraft ... to run PX4 on a glider and have some success doing it. Future plans involve weather balloons ...

Side-view plans for the Colditz glider. Goldfinch and Best began building ... The plan was to assemble the aircraft, then catapult it off the chapel's roof using a metal bathtub filled with ...

"The longest glider flight is three thousand eight hundred kilometers," said the Polish pilot. "In one segment, a straight-line distance of two thousand two hundred and fifty kilometers was flown ...