Hurricane Mk I Specifications
Crew: Pilot only
Powerplant: One 1,030 hp Rolls-Royce Merlin III twelve-cylinder liquid-cooled engine
Span: 40 ft 0 in (12.19 m)
Max Speed: 328 mph (529 km/h) at 20,000 ft (6,095 m)
Length: 31 ft 4 in (9.55 m)
Armament: Eight .303 in (7.7 mm) Browning machine guns mounted in wings
Image: Hawker Hurricane Mark I, P3408 ‘VY-K’, of No. 85 Squadron RAF based at Church Fenton, Yorkshire, in flight, October 1940.
The Hawker Hurricane was a British single-seat fighter aircraft that formed the core of RAF Fighter Command during the Battle of Britain. It was the first monoplane fighter in RAF service capable of exceeding 300 mph (483 km/h) in level flight and became the most numerous British fighter of the early war years. The Hurricane was designed by Sydney Camm, Chief Designer at Hawker Aircraft Ltd., as a private venture later aligned with Air Ministry requirements for a new eight-gun monoplane fighter using the Rolls-Royce PV-12 engine—later known as the Merlin.
Development and Design
A monoplane evolution of the earlier Hawker Fury biplane, the Hurricane combined modern aerodynamic features such as an enclosed cockpit, retractable undercarriage, and low-wing monoplane configuration with traditional construction techniques. These included a fuselage built from braced steel tubing, assembled with mechanical fasteners, and largely covered with doped fabric, which allowed for rapid production and ease of repair. The aircraft’s main armament consisted of eight .303 inch (7.7 mm) Browning machine guns mounted in the wings, each supplied with 333 rounds of ammunition.
The prototype, K5083, first flew on 6 November 1935 at Brooklands, reaching a top speed of 315 mph (507 km/h). After successful trials at Martlesham Heath, the Air Ministry placed an initial production order for 600 aircraft in June 1936.
Entry Into RAF Service
The first operational Hurricanes entered service in December 1937 with No. 111 Squadron at RAF Northolt. Early production models featured fabric-covered wings, but these were soon replaced with metal stressed-skin wings, significantly improving structural integrity and performance.
Performance was further enhanced by the adoption of 100-octane fuel imported from the United States and the introduction of hydraulically operated constant-speed Rotol propellers, which increased climb rate and acceleration.
By the start of the Battle of Britain in July 1940, thirty-two RAF squadrons were equipped with Hurricanes.
The Hurricane in the Battle of Britain
By the summer of 1940, the Hurricane had become the backbone of RAF Fighter Command. Although often overshadowed in popular memory by the more glamorous Supermarine Spitfire, the Hurricane bore the lion’s share of the combat burden during the battle.
It was credited with destroying 656 enemy aircraft—approximately 55% of all enemy aircraft shot down by Fighter Command during the campaign.
Fighter Command doctrine generally assigned Hurricane squadrons to attack incoming German bomber formations while Spitfires engaged the faster Messerschmitt Bf 109 fighter escorts. The Hurricane’s stable gun platform and heavy armament made it particularly effective against bombers such as the Heinkel He 111, Dornier Do 17, and Junkers Ju 88.
Hurricane versus Messerschmitt Bf 109
Although slower than both the Supermarine Spitfire and its principal adversary, the Messerschmitt Bf 109, the Hurricane possessed several important advantages.
Most notably, it could out-turn the Bf 109 in a tight turning fight and provided pilots with a highly stable firing platform. Its robust construction enabled it to absorb considerable battle damage and remain operational.
Many German cannon shells would pass through the aircraft’s fabric-covered fuselage without detonating, often reducing the severity of combat damage.
The Hurricane’s relatively simple construction also meant that damaged aircraft could often be repaired and returned to service more quickly than the more complex Spitfire.
Strengths and Weaknesses
One of the Hurricane’s greatest strengths was its ruggedness and ease of maintenance. Ground crews could often repair battle damage within hours, allowing aircraft to return quickly to operational service.
However, the same fabric and wood construction that made repairs straightforward also created vulnerabilities. Unprotected fuel tanks in the wings and forward fuselage presented a significant fire hazard, and a direct hit could ignite fuel and engulf the cockpit in flames.
The vulnerability of the fuel system became a major concern for Air Chief Marshal Sir Hugh Dowding. At his direction, Hawker retrofitted fuel tanks with self-sealing rubber linings, including compounds such as Linatex, greatly reducing the risk of fire.
The Hurricane Mk IIA
In September 1940, the improved Hurricane Mk IIA began entering RAF service, albeit in small numbers. This version was powered by the more powerful Rolls-Royce Merlin XX engine, featuring a two-speed, two-stage supercharger, and was capable of reaching a top speed of 342 mph (550 km/h).
The Mk IIA laid the foundation for subsequent Hurricane variants that would serve in every major theatre of the Second World War, from North Africa to Burma.
Legacy
Although later surpassed by faster and more advanced aircraft, the Hurricane’s vital contribution during the Battle of Britain ensured its place as one of the most important fighters in British aviation history.
While the Spitfire became the enduring symbol of Britain’s aerial victory, it was the Hurricane that destroyed more enemy aircraft than any other RAF fighter during the campaign and carried the heaviest burden during the nation’s darkest hour.
Frequently Asked Questions
Why was the Hawker Hurricane important?
The Hurricane formed the backbone of RAF Fighter Command during the Battle of Britain and was responsible for approximately 55% of all enemy aircraft destroyed by British fighters during the campaign.
Did the Hurricane shoot down more aircraft than the Spitfire?
Yes. Hurricane squadrons were credited with destroying 656 enemy aircraft during the Battle of Britain, compared with 529 credited to Spitfire squadrons.
Was the Hurricane better than the Spitfire?
The two aircraft were designed for different roles. The Spitfire was faster and more advanced, while the Hurricane was more rugged, easier to repair, and highly effective against bomber formations.
Could the Hurricane out-turn the Messerschmitt Bf 109?
Yes. Although slower than the Bf 109, the Hurricane could out-turn the German fighter in a tight turning battle.
How many Hurricane squadrons fought in the Battle of Britain?
Thirty-two RAF squadrons were equipped with Hurricanes at the start of the battle, making it the most numerous British fighter aircraft in service.
What engine powered the Hurricane?
The Hurricane Mk I was powered by the Rolls-Royce Merlin III twelve-cylinder liquid-cooled engine.
Why is the Hurricane often overlooked?
The Hurricane’s achievements have often been overshadowed by the Spitfire’s iconic status and elegant design. However, the Hurricane destroyed more enemy aircraft during the Battle of Britain and played an equally important role in Britain’s victory.
Are any Hawker Hurricanes still flying today?
Yes. Several Hurricanes have been restored to airworthy condition and continue to appear at airshows and commemorative events around the world.