
This aircraft seems to have drawn inspiration from the Vought Corsair and contemporary Japanese fighters. The XP-1 had the rear fuselage cut down, assumable to give a good all-round view for the pilot. It also had a rather peculiar wing, which was both bent and swept forward, to quite a strong degree apparently.
The XP-1 was designed in 1942 by Constantin Zakharchenko and built in Guiyang in 1944. with fixed undercarriage, The XP-1 was powered by one 1,200 hp Wright Cyclone R-1820-71 from A C-49D. It had wood/plywood inverted-swept wings, with automatic flaps, and the fuselage was built in steel tube/fabric.
Completed at some point in 1944, it reportedly first flew in January 1945.

And on this first flight its engine, which was supposedly recovered from a crashed C-47, failed and the aircraft crashed. A second prototype is reported to have been under construction at the time but cancelled after this and the program scrapped.
The chaos of the Chinese Civil War seems to have destroyed most traces of the XP-fighters and all that remains of them are a few snippets.

Engine: 1,200 hp Wright Cyclone R-1820-71
Wingspan: 12.10 m
Length: 8.72 m
Max weight: 2,930 kg
est.Max speed: 580 kph
Armament: two 12.7 mm machine guns