Diesel said:sometimes its not the health it's the automation and the key typing and trying to make the plane do what you want it to do. 60+ might have no problem flying where you do see problems is automation and the go go go change change change of the mentality.
Okay I am confused here? What do you think these guys have been flying for all these years, DC6's I would imagine that most of them have been dealing with automation for at last fifteen to twenty years at a minimum before they retired and came over to the dark side. Type fast or die is has very little to do with airmanship. Most guys can type faster than me, but I don't see what it has to do with this job discription. Switching to a new FMS protocol is usually a significant event for most pilots at any age. Example; the Boeing Honeywell FMS uses what/where analogies, where the Airbus and McDonnell MD11/MD10 use where/what analogies. Almost eveyone stumbles through this learning curve when they first switch from one proptocol regardless of age.
I have seen many more errors with pilots who can make that FMS smoke, that the pilots who are methodical in their application of FMS programing. Just my opinion.