http://www.perlanproject.org/blog/airbus-perlan-mission-ii-world-record-flight

On September 3, 2017 Airbus Perlan Mission II became a testament
to what a volunteer team can accomplish. Perlan 2 flown by Jim Payne and Morgan
Sandercock clawed their way to 52,172 feet GPS altitude with tenacious flying
and strong support from the ground. It is after 1 am so I will blog tomorrow.
There will be in flight photos and weather maps. For now enjoy the day through
the photos. The flight log can be found at: https://www.onlinecontest.org/olc-2.0/gliding/flightinfo.html?dsId=6116604