Facts please folks!
The qiestion was "What is the oldest commercial aircraft still operation?"
Dates of entry to service therefore needed for, if I may suggest the shortlist;
G-ACDC, our wonderful Tiger moth (same age as my mum, to the month)
The Dragon Rapide
DC 2
Ford Trimotor (My guess for the prize)
Any Iron Annies ("Tante Ju") still at work.
Or any better ideas anyone has - not so long since Richard Bach was joyriding in a 1929 Park Special after all...is he the last?