Maybe the topic is a bit confusing. Sorry about that, but what I wanted to put couldn't fit!
My question is: which do you think or know is the airliner that has seen service with the most airlines? I can think of the 727, which was in service for most major airlines and is still in service with a potential number of little airlines!
Or maybe the 737 or DC-3? I'm just curious! Anyway anyone can help with data or clues? Thanks!
A. De Leo