I belong to Air Heritage Inc. of Beaver Falls, PA. We are just north of Pittsburgh at Beaver County Airport.
We have the only flying C-123K provider left in the US if not the world. We also operate a Grumman Mohawk and Piper L-21B supercub. Currently we have a T-28B, T-34B, a 1946 Funk Bros Model B and a Fairchild F24-C8C in restoration to flight condition.
We have done work on lots of aircraft that are no longer ours or we're never our's to begin with including:
B-17G, Nine-0-Nine, Collings Foundation, complete restoration after it crashed at our airport
P-47D, Hairless Joe, complete restoration
P-51D, partial restoration
A-20H, under restoration prior to aircraft going to Geneseo NY
-25N, Hoosier Honey, now known as Tondelayo, Collings Foundation, did some work on it.
B-25, National Naval Aviation Museum, converted aircraft to PBJ-1 Standard; trucked and reassembled aircraft at NNAM.
Plus much more...