Short outer wing panel angled much further forward than earlier types. Diverted with start of Pacific war to USAAF as P-64 (1579)
Different rudder than the NA-50, improved landing gear doors, two 20mm guns under the wing, two 8mm guns under the wing, two 8mm guns in the cowling. After revoking the delivery, they were transferred to California, stripped of their armament and taken over by USAAC as fighter trainers, designated P-64. They retained their Thai camouflage of Dark Brown/Darrk Green and Light Gray.(1580)
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