Model Variants (Including Prototypes)
NA-123 - North American Aviation Design Proposal.
XP-82 - Prototype Designation; two examples produced; fitted with Packard Merlin V-1650-23 and V-1650-25 series engines.
XP-82A - Third Experimental Prototype Designation; fitted with 2 x Allison V-1710-119 series engines; fourth prototype cancelled.
P-82B - Base Production Fighter Version; based on XP-82 prototypes; underwing bomb racks; fitted with 2 x Packard V-1650 engines of 1,380 horsepower each; 20 examples produced of the 500 originally ordered.
P-82Z - 20 P-82B models set aside for testing.
P-82C - Nightfighter; center nacelle housing SCR-720 radar system; production version designated as P-82F; P-82C designation never used in production models.
P-82D - Night fighter ; based on a modified P-82B model; APS-4 series radar system; production models became the P-82G; P-82D designation never used in production models.
P-82E - Escort All-Weather Day Fighter; fitted with counter-rotating Allison V-1710-143 and V-1710-145 liquid-cooled engines; first four reserved for testing as F-82A's; 100 examples produced.
P-82F - Production Night fighter Version of the P-82C model with SCR-720 series radar system in a central located nacelle; 100 examples produced.
P-82G - Production Nightfighter Version of the P-82D modelwith APS-4 series radar system; 50 examples produced.
F-82H - Cold Weather Model; 15 conversion models.