Vultee Model 48C (P-66) of Chinese Nationalist Air Force, 1942.
The Chinese received the assembled fighters via India by late 1942. A number of Vanguards were destroyed during tests in India and others lost while en route to China. Assembled P-66s were deemed unairworthy and abandoned at Karachi resulting in only 12 Vanguards on station at Kunming with the 74th Fighter Squadron of the 23rd Fighter Group, but this unit saw little action. Two Chinese squadrons from the 3rd Group and the 5th Group based at An-Su saw combat action with the Vanguard from August 1943 onward.
The P-66 in Chinese service was largely replaced by Curtiss P-40s in 1943.