Propellers: four-bladed Curtis Electric propeller
Propeller diameter: 146 in (3.72 m)

Fuel capacity:
– Internal: 640 gal (2,423 L) of AN-F-48 100/130-octane rating gasoline
– External: Up to four 165 gal (625 L) or 310 gal (1,173 L) tanks under the wings

Dimensions:
Length: 49 ft 7 in (15.11 m)
Wingspan: 66 ft 0 in (20.12 m)
Height: 14 ft 8 in (4.47 m)
Wing area: 662.36 ft² (61.53 m²)

Weights:
Empty weight: 23,450 lb (10,637 kg)
Loaded weight: 29,700 lb (13,471 kg)
Max. takeoff weight: 36,200 lb (16,420 kg)

Performance:
Maximum speed: 366 mph (318 kn, 589 km/h) at 20,000 ft (6,095 m)
Combat range: 610 mi (520 nmi, 982 km)
Ferry range: 1,900 mi (1,650 nmi, 3,060 km) with four external fuel tanks
Service ceiling: 33,100 ft (10,600 m)
Rate of climb: 2,540 ft/min (12.9 m/s)
Wing loading: 45 lb/ft² (219 kg/m²)
Power/mass: 0.15 hp/lb (250 W/kg)
Time to altitude: 12 min to 20,000 ft (6,100 m) (1,667 fpm)

Armament
4 × 20 mm Hispano M2 cannon in ventral fuselage, 200 rpg
4 × .50 in M2 Browning machine guns in remotely operated, full-traverse upper turret, 560 rpg

Bombs:
for ground attack, four bombs of up to 1,600 lb (726 kg) each or six 5 in (127 mm) HVAR unguided rockets could be carried under the wings. Some aircraft could also carry one 1,000 lb (454 kg) bomb under the fuselage.

Avionics
SCR-720 (AI Mk.X) search radar
SCR-695 tail warning radar