> I would be surprised if they had sold even a single plane less if they advertised it as 'very minimal pilot retraining necessary'.
That might be enough for the plane to need a separate type certificate, meaning hundreds of millions of dollars expenses for Boeing to get it certified, and full new-type pilot training costs for every airline to fly the aircraft. (Plus, time, and ongoing crew management to juggle pilots certified on one but not the other.)
That might be enough for the plane to need a separate type certificate, meaning hundreds of millions of dollars expenses for Boeing to get it certified, and full new-type pilot training costs for every airline to fly the aircraft. (Plus, time, and ongoing crew management to juggle pilots certified on one but not the other.)