Can anyone recommend any large jets, but they must be freeware?
Any of www.meljet.com 's aircraft.
Project Opensky's aircraft -> www.projectopensky.com
iFDG's aircraft -> IFDG (Now closed)
As for individual aircraft, I think the 747's from Project Opensky are good fun
personally i think that the B767-400`s from posky are the best and the one on meljet are also good