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Specifications
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Type: Single Seat Day Fighter Fighter-Bomber Origin: Westland Models: Whirlwind Mk. I and IA First Flight October 11, 1938 Service Delivery: June 1940 Final Delivery: December 1941 Number Produced: 112 Engine: Model: Rolls-Royce Peregrine I Type: 12-Cylinder liquid cooled Vee Number: Two Horsepower: 885 hp Dimensions: Fuselage: Length: Tail Down: 32 ft. 9 in. (9.98m) Tail Up: 32 ft. 3 in. Height: 11 ft. 7 in. (3.52m) Main Plane: Span: 45 ft. (13.72m) Surface Area: 250 Sq. Ft. Center section: Max chord: 6 ft. 10 in. Dihedral: 0° :t 15' Incidence: 0° Outer plane: Max chord: 6 ft. 4 in. Dihedral: 2° . 13' :t 15' Incidence: 0° Thickness chord ratio at root: 17% Thickness chord ratio at tip: 8%. Aileron area: 37 sq. ft. Flaps: : Type: Fowler : Area: 42 sq. ft. : Travel: 46° Tail Plane: Span: 15 ft. 11 in. Chord: 4 ft. 6 in. Incidence: -1° Tailplane area: 37.5 sq. ft. Fin area: 15 sq. ft. Elevator area: 36 sq. ft. Rudder area: 11.6 sq. ft. |
Sub-systems: Hydraulic System: Type: Dowty Max. Operating Pressure: 800 psi Emergency air pressure: 1,200 psi Fuel System: Fuel Type: 100 octane Tanks: Four Capacity: 134 Imperial gallons Weights: Empty: Whirlwind I: 7,840 lb. (3699 kg) Whirlwind IA: 8,310 lb. (3770 kg) Loaded: Whirlwind I: 10,270 lb. (4658 kg) Whirlwind IA: 11,388 lb. (5166 kg) Performance: Maximum Speed: Clean: 360 mph (580 km/h) With Bombs: 270 mph (435 km/h) Initial Climb (Clean): 3,000 ft/min (915 m/min) Service Ceiling (Clean): 30,000 ft. (9144m) Range: N/A (but thought to be roughly 800 miles) Armament: Four 20mm Hispano Cannons in nose. Payload: IA only Underwing racks for up to 1,000 lb. (454 kg) of bombs. |
Gunston, Bill - The Encyclodepia of the Worlds Combat aircraft, 1976, Chartwell Books, Inc., New York
Green, William - War Planes Of The Second World War - Fighters - Vol. 2, 1961, Hanover House, New York
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