The YP-84A was the designation given to 15 pre-series Thunderjets. They were all delivered to the USAF by April of 1947. They were powered by the Allison J35-A-15 engine of 3750 lb. st. in place of the General Electric J35-GE-7 (the production of the J35 having been turned over to Allison). Armament consisted of six 0.50-in. machine guns, four in the upper front fuselage and two in the wings. The YP-84As were turned over to crews assigned to Muroc and to the Wright-Patterson bases for tests and pilot familiarization.
Serials of YP-84A
45-59482/59484 Republic YP-84A-1-RE Thunderjet 45-59485/59491 Republic YP-84A-5-RE Thunderjet 45-59492/59496 Republic YP-84A-10-RE Thunderjet
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