We're obliged to the chaps down at Exmaps for sticking the data from a Low Orbit Helium Assisted Navigator (LOHAN) test flight into their "Drone Flight Logbook". The virtual two-hour High Altitude Ballooning (HAB) mission makes for entertaining viewing.
The purpose of the flight in October 2014 was to test our Vulture 2 spaceplane's avionics package - including Pixhawk, servos and batteries - at altitude, to see how it'd handle the cold.
The Exmap virtual flight includes pitch, roll and yaw data as well as altitude. As you can see, HAB payloads take a bit of a beating up there in the stratosphere:
The mission was conducted by our US allies at EDGE Research Laboratory, seen here inflating the mighty orb which carried the kit aloft:
There's more on the mission and Exmaps here.