Originally Posted by
Deano969
So here's the thing
Does a 738 driver forget how to drive one when getting certified on a 320?
Pilots can’t fly multiple fleets, especially when they are significantly different (ie. 737 vs A320). The only exception to this is things like the A330/350 when they get them. They’re considered close enough (arguable) that they can run it as a single fleet type. They’re also the same type rating.