On Oct 20, 2017, Miloch wrote
(in article ):

https://en.wikipedia.org/wiki/Bell_P-59_Airacomet

The Bell P-59 Airacomet was a twin jet-engined fighter aircraft, the first of
the United States, designed and built by Bell Aircraft during World War II.

Snip

Chuck Yeager flew the aircraft and was dissatisfied with its speed, but was amazed at its smooth flying characteristics. Nevertheless, even before delivery
of the YP-59As in June 1943, the USAAF ordered 80 production machines,
designated "P-59A Airacomet".

When did Chuck Yeager fly the YP-59A, P-59A, or P-59B?

He graduated from class 43C in March 1943, and was shipped overseas in
November 1943. He completed his European tour in February 1945. I seriously
doubt that he was at Muroc during the war time test period. He might have had
the opportunity to fly one after the war, but he only became a test pilot
after the transition from USAAF to USAF, and graduation from the Air Materiel
Command Flight Performance School (class 46C) in 1947. Then he was part of
the X-1 team.

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Regards,
Savageduck