The three research aircraft used to study the ozone layer: the NASA DC-8, the DLR Falcon, and the Russian M55 Geophysica. The airplanes are housed simultaneously inside the Arena Arctica hangar. Russian support staff routinely walk along the aircraft wings during instrument preparations (as pictured). Hans Schlager, co-lead of the European effort, is in the foreground.

We play "musical airplanes" when the aircraft at the back end of the hangar needs to be towed outside on a day when the other planes are not flying.