Engine: Allison V-1710 of 1,325 hp. Top Speed : 408 mph. Span : 38 ft. 4 in. Range : 450 miles Length : 32 ft. 8 in. Ceiling: 43,000 ft. Height: 12 ft. 7 in. This P-63 exhibited at AF Museum, W-PAFB, Ohio, closely resembles P-39 from which it was developed. Some AAF P-63's were used to train fighter pilots, and others were flown as armored target aircraft with lights which lit when plane was struck by frangible bullets fired by aerial gunner trainees.