K5054 in air Supermarine Type 300 Spitfire Prototype 1939
Spitfire Prototype (Specification F.37/34):
Dimensions:
- Span: 36 ft 10 in (11.23 m)
- Length: 29 ft 11 in (9.12 m)
- Height: 8 ft 2.5 in (Tail Down), 12 ft 8 in (Tip of Prop, Tail Down) [3.86 m]
Engine:
- Initial Engine: Rolls-Royce Merlin C
- Power Output: 990 hp (738 kW)
- Later Engines:
- Rolls-Royce Merlin ‘F’ with 1,035 hp (772 kW)
- Rolls-Royce Merlin II with 1,030 hp (768 kW)
Weights:
- Tare (Empty): 5,034 lb (2,288 kg)
- Maximum: 5,200 lb (2,364 kg)
Performance:
- Max Speed: 349 mph at 16,800 ft (5,120 m) with Merlin C and Two-Blade Propeller
- Time to 15,000 ft: 6 min 25 sec
- Service Ceiling: 35,400 ft (10,790 m)
Armament:
- Initially None
- From December 1936: Fitted with eight 0.303 in Browning machine guns, 300 rounds per gun
Propeller:
- Early Propeller: Watts, Two-blade, Fixed pitch, 10.67 ft (3.22 m) Diameter
- Other Propellers:
- Fairey-Reed, Three-blade, Fixed pitch
- de Havilland, Three-blade, Two-pitch