1943 Supermarine Spitfire Mk IX - Specifications

Length	31 ft. 3½ in.
Wingspan:
Standard (F)	36 ft. 10 in.
Clipped (LF)	32 ft. 2 in.
Height	11 ft. 9 in.
Wing Area	242 sq. ft. (F) or 231 sq. ft. (LF)
Empty Weight	5,610 lbs. (2,545 kg)
Max. Takeoff Weight	7,500 lbs. (3,402 kg)
Engine	One V-12 Rolls-Royce Merlin 61, 1,515 hp, or Merlin 63, 1,712 hp
Maximum Speed	408 mph (657 kph) at 25,000 ft.
Service Ceiling	4,000 ft.
Range w/o drop tank	434 miles (698 km)
Armament	Two Hispano 20mm cannon and either four .303 machine guns or two .50 machine guns; 1,000 lbs of bombs (500 centerline, 250 each wing)
Number built:
Mk IX	5,665
All Variants	20,334