The switch from using Berlin Templehof to Berlin Tegel on September 1, 1975 concentrated all the remaining IGS routes at the more distant airport. Although the fleets dedicated to the IGS routes of both Pan Am and British Airways were reduced from their heyday they were still important to both airlines. The 1980s would bring about a rebirth of competition that would challenge the status quo until the reunification of Germany itself made the IGS obsolete.
I'm Richard Stretton: a fan of classic airliners and airlines who enjoys exploring their history through my collection of die-cast airliners. If you enjoy the site please donate whatever you can to help keep it running: