Extreme altitude, very thin air, temperature of -66 degrees F, and the EZ Pilot worked flawlessly during the arduous flight. "The EZ Pilot continued to operate normally,” Bohannon said. “Once I determined that the plane wasn’t capable of going any higher, I just hit the Mode button to see if the automatic 180 degree turn feature would work, and it took me back home while I descended. Even at that extreme altitude and temperature it worked exactly as advertised.”