UAL757 From United States of America, joined Sep 2006, 803 posts, RR: 4 Reply 1, posted (5 years 5 months 3 weeks 1 day 7 hours ago) and read 17809 times:
X-Plane Freeware Project have some amazing aircraft for X-Plane, the two good ones are the 757 and MD-80 which are still in beta, so you have to be a beta-tester, which anyone can be! The 757 hI would say is closer to being done than the MD-80. The 757 is great, and soon will have a new sound-set and Virtual Cabin. It has spinning fan blades and the wings are fantastic. The MD-80 has opening doors and such, but still has some flaws.
I don't know too much on the Tupolev, but X-plane.org has an okay ERJ-145 model that someone uploaded. I hope this helps, as there really isn't much choice for x-plane add-on aircraft.