During WW2, this part of the Templehof airport had train tracks laid. They would have flat bed train come in, and a production line assembly system was set up to make aircraft wings, bodies, and cockpits. Once each section was complete, this was transported to the hangars and assembled to the aircraft.
These metal beams (top) are part of that production line, and the tracks (bottom) can be seen.
June 15, 2008 - A tour of Airport Templehof, which is scheduled to close in fall of 2008.
History of this airport can be found here:
Submitted for August 2008 MSH - #12 Track