As I understand it, Chairman Mao flew in this plane (or at least a C-47 with serial 476650) to atttend the Chongqing Negotiations in 1945. The TS-62 designator signifies that, due to a shortage of powerplants, after the Second World War this C-47 was fitted with Russian built ASh-62IR (АШ-62ИР) engines.
This aircraft displayed previously the serial '18048' on its starboard side but after the museum's renovation '84081' is now on worn both sides. However, the true serial of this aircraft in PLAAF service was '84681'. The UTI 'Midget' is the two-seat dual-control trainer version of the MiG-15.
It appears that after the renovation of the museum some aircraft have been deemed surplus to requirements and have then collected together to form a sort of dump. These aircraft may not have a long term future but for now they make for interesting photos though! This CJ-6 was modified for a film to make it look like a USAF F-84 and has very faint dummy markings still visible.
During my day at this wonderful museum I photographed two unmarked Z-6s in this blue and grey scheme. The only obvious difference between the two was that this one had the engine air intake blocked off, whereas the second Z-6 (visible behind) had the intake open.