, pilots can fly the MD
-88 and MD
-90, or fly the 757/762/763/763ER. With CO
, I believe they can also fly the 764 with the whole 767 lineup.
I know with Fedex, the pilots are flying the MD
-10 and the MD
-11, even though the -10 is a different airframe anyways.
Saves the company money, but there's a limit to how much you can compartamentalize the pilot groups, as to currency and difference training. Ex, flying a steam guage 732 then going to an NG
738 for your next trip.
I havent seen 764/777 cross certification yet, though it's been talked about before.
"The cockpit, what is it?" "It's the little room in the front of the plane where the pilot sits, but that's not importan