Inspired by the Oldest Usaf Aircraft thread in MilAv/Space I was wondering what the current oldest airplane flying would be. I guessed it could be Bleriot or something similar and this turned out to be right (http://en.wikipedia.org/wiki/Bl%C3%A9riot_XI#Survivors). However this one is displayed in a museum and not actually flying. Even multiple different searches through Google and the famous uber-functional and amazingly consistent Airliners.net search function did not yield the answer to this question
So does anyone know what the oldest airplane regular flying? (and let´s say by "regular" I mean at least once a year)
I guess the oldest airliner currently flying would be a DC-3? Is there currently a definitive "oldest airliner flying"?