Supermarine Spitfire

The Supermarine Spitfire was a British single-seat fighter, used by the Royal Air Force and many other Allied countries during the Second World War, and into the 1950s.^[2] It was produced in greater numbers than any other Allied design. The Spitfire was the only Allied fighter in production at the outbreak of the Second World War that was still in production at the end of the war.

Produced by the Supermarine subsidiary of Vickers-Armstrongs, the Spitfire was designed by the company's Chief Designer R. J. Mitchell, who continued to refine the design until his death from cancer in 1937; the position of chief designer was then filled by his colleague, Joseph Smith.^[3] Its elliptical wing had a thin cross-section, allowing a higher top speed than the Hawker Hurricane and many other contemporary designs.

The distinctive silhouette imparted by the wing planform helped the Spitfire to achieve legendary status during the Battle of Britain. There was, and still is, a public perception that it was the RAF fighter of the Battle, in spite of the fact that the more numerous Hurricane shouldered a great deal of the burden against the potent Messerschmitt Bf 109. Much loved by its pilots, the Spitfire saw service during the whole of the Second World War and subsequent years, in most theatres of war, in several roles and in many different variants.

The Spitfire will always be compared to its main adversary, the Bf 109: both were among the finest fighters of their day, although the Spitfire ultimately proved to be a more flexible and tractable design, and kept its superb handling qualities through every permutation.^[4]

Design and development

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The still unpainted Spitfire prototype K5054 shortly before its first flight

Mitchell's 1931 design to meet Air Ministry specification F7/30 for a new and modern fighter capable of 250 mph, the Supermarine Type 224, resulted in an open-cockpit monoplane with bulky gull-wings and a large fixed, spatted undercarriage powered by the evaporative-cooled Rolls-Royce Goshawk engine. This made its first flight in February 1934.^[5] This aircraft was a big disappointment to Mitchell and his design team, who immediately embarked on a series of "cleaned up" designs, using their experience with the Schneider trophy seaplanes as a starting point. The F7/30 design accepted was the biplane Gloster Gladiator

One big step to the Spitfire was the first design for the Supermarine Type 300 fighter which was on the drawing boards in November 1934 as a private venture design, started with the backing of Supermarine's owner, Vickers-Armstrongs. The new design featured undercarriage retraction, an enclosed cockpit, oxygen breathing-apparatus and the newly-developed and much more powerful Rolls-Royce PV-XII engine, later named the Merlin. The Air Ministry issued a contract AM 361140/34 in December 1934, providing for the construction of Mitchell's "improved F.7/30 design". On 3 January 1935 the Air Ministry formalised the contract and a new Specification F.10/35 was written around the aircraft.^[6] Just 15 months later, after several major design changes and refinements, on 6 March 1936 the sleek new prototype took off on its first flight.

Name origin

The Air Ministry submitted a list of possible names to Vickers-Armstrongs for the new aircraft, now known as the Type 300. One of these was the improbable Shrew. The name Spitfire was suggested by Sir Robert MacLean, director of Vickers-Armstrongs at the time, who called his daughter Ann "a little spitfire." The word dates from Elizabethan times and refers to a particularly fiery, ferocious type of person, and at the time, associated with a girl or woman of that temperament.^[7] The name had previously been used unofficially for Mitchell's earlier F.7/30 Type 224 design. Mitchell is reported to have said that it was "just the sort of bloody silly name they would choose",^[8] possibly an oblique reference to the Type 224.

Airframe

In the mid-1930s aviation design teams started developing a new generation of all-metal, low wing fighter aircraft. Aircraft such as the French Dewoitine D.520, and Germany's Messerschmitt Bf 109 were designed to take advantage of new techniques of monocoque construction, and new high powered, liquid cooled, in-line aero engines. They also featured refinements such as retractable undercarriages, fully enclosed cockpits and low-drag, all metal wings.

Mitchell's design aims were to create a well balanced high performance fighter aircraft which would be able to fully utilise the power of the Merlin engine and, at the same time would be relatively easy to fly. To that end his design team developed an airframe which, for its day was complex.

The exceptionally well streamlined semi-monocoque duralumin fuselage featured a large number of compound curves and was built up from a skeleton of 19 frames, starting from the main engine bulkhead, or frame number one. Aft of the engine bulkhead were five half frames to accommodate the fuel tanks and cockpit. From the seventh, which was the frame to which the pilot's seat and (later) armour plating was attached, to the 15th, which was mounted at a forward angle just forward of the tailfin, the frames were oval in shape, each reducing slightly in size, and had numerous holes drilled through them to lighten the structural weight as much as possible without weakening them. Frame 16 formed a double bulkhead with frame 17, which was extended to form the main spar of the vertical fin; frame 18 formed the secondary spar. Just aft of this the 19th frame formed the rudder post. A combination of 14 longitudinal stringers and two main longerons helped form a light but rigid structure to which sheets of alclad stressed skinning were attached. There was plenty of room to later fit camera equipment and fuel tanks.^[2][9]

The skin of the fuselage, wings and tailplane was attached with rivets, and in critical areas, such as the wing forward of the main spar where an uninterrupted airflow was required, flush rivets were used. In some areas, such as the rear of the wing, the top was riveted and the bottom fixed by woodscrews into sections of spruce; later pop-riveting would be used for these areas.^[10] From the Mk XII Griffon-engined Spitfire on, flush riveting was used throughout the entire airframe. At first the ailerons, elevators and rudder were fabric covered. However, once combat experience showed that the fabric covered ailerons became impossible to use at high speeds the fabric was replaced with a light-alloy, enhancing control throughout the speed range of the Spitfire.

Elliptical wing design

From early on Mitchell and the design staff were contemplating an elliptical wing shape to solve the conflicting requirements of having the lowest possible thickness-to-chord ratio to reduce drag, and having room to install a retractable undercarriage, as well as the projected armament and ammunition which, in April 1935, was changed from two .303 Vickers machine guns in each wing to four .303 Brownings.

It has been suggested that Mitchell copied the wing shape of the Heinkel He 70. Mitchell's aerodynamicist, Beverley Shenstone, however, has pointed out that the He 70 was designed to fulfill a completely different role and that other aircraft also had elliptical wings. The Spitfire wing was much thinner with a completely different section. As a practical engineer Mitchell was fully aware of the efficiency of the elliptical wing, as were Siegfried and Walter Günther, who designed the Heinkel.^[11][12] In any event, the single-spar elliptical wing was enough to sell the Air Ministry on this new Type 300, which they funded by a new specification, F.10/35, drawn up around the Spitfire.

A design aspect of the wing which contributed greatly to its success was an innovative spar boom design, made up of five square concentric tubes which fitted into each other. Two of these booms were linked together by an alloy web creating a lightweight and very strong main spar. The undercarriage legs were attached to pivot points built into the inner, rear of the main spar and retracted outwards and slightly backwards into wells in the non-load carrying wing structure. The narrow undercarriage track was considered to be an acceptable compromise as it allowed the landing impact loads to be transmitted to the strongest parts of the wing structure.

Ahead of the spar, the thick-skinned leading edge of the wing formed a strong and very rigid D-shaped box, which took most of the wing loads. At the time the wing was designed this D-shaped leading edge was intended to house steam condensers for the evaporative cooling system intended for the PV XII. The constant problems with the evaporative system in the Goshawk led to the adoption of a 100% glycol cooling system and a new radiator duct design, devised by a Fredrick Meredith of the RAE at Farnborough.^[13] This meant that the leading edge structure lost its function as an evaporator, but it was later to become very useful with its adaptation to house integral fuel tanks of various sizes.^[14][15]

The wing section used was a NACA 2200 series which had been adapted to create a thickness to chord ratio of 13% at the root reducing to 6% at the tip. A dihedral of six degrees was adopted to give increased lateral stability.

Another feature of the wing was its washout. The trailing edge of the wing twisted slightly upward along its span, the angle of incidence decreased from +2 degrees at its root to -1/2 degree at its tip. This caused the wing roots to stall before the tips, reducing tip stall that may have resulted in a spin. In a tight turn the disturbance of the slipstream near the wing-root caused a distinctive "juddering" through the control column and fuselage skin, warning the pilot that the Spitfire was nearing a stall. Many other aircraft of the time gave no advance warning and would flick straight into a spin, which was often fatal. In combat, experienced pilots were able to use the tight turning ability and stall warning provided by the wing to full advantage, especially when pursuing or being pursued by a Bf 109 which had a higher stalling speed and could often fall into a spin without much warning.^[16]

The elliptical wing was able to reach a safe Mach number of 0.83 and maximum of 0.86 without encountering the problem of Mach-induced aileron flutter, a phenomenon which continued to blight many newer designs.

At first the complexity of the wing design, especially the precision required to manufacture the vital spar and leading edge structures, caused some major hold-ups in the production of the Spitfire. This was amplified when the work was put out to sub-contractors, most of whom had never dealt with metal-structured, high-speed aircraft. Over time, however, these problems were overcome and thousands of these wings, of six basic types, were built.^[15]

One flaw in the thin-wing design of the Spitfire manifested itself when the aircraft was brought up to very high speeds. When the pilot attempted to roll the aircraft at these speeds, the aerodynamic forces on the ailerons were enough to twist the entire wingtip in the direction opposite of the aileron deflection (much like the way an aileron trim tab will deflect the aileron itself). This so-called aileron reversal resulted in the Spitfire rolling in the opposite direction to the control-column input. The new wing of the Spitfire F. Mk 21 and its successors was designed to help alleviate this problem.^{[citation needed]}

The ellipse also served as the design basis for the Spitfire’s fin and tailplane assembly, once again exploiting the shape’s favourable aerodynamic characteristics. Both the elevators and rudder were shaped so that their centre of mass was shifted forward thus reducing control surface flutter. The longer noses and greater propeller wash resulting from larger engines in later models necessitated increasingly larger vertical and, later, horizontal tail surfaces to compensate for the altered aerodynamics, culminating in those of the Mk 22/24 series which were 25% larger in area than those of the Mk I.^[17][18]

Carburettor versus Fuel Injection

Early in its development, the Merlin engine's lack of direct fuel injection meant that both Spitfires and Hurricanes, unlike the Bf 109E, were unable to simply nose down into a steep dive. This meant a Luftwaffe fighter could simply "bunt" into a high-power dive to escape an attack, leaving the Spitfire sputtering behind, as its fuel was forced by negative "g" out of the carburettor. RAF fighter pilots soon learned to "half-roll" their aircraft before diving to pursue their opponents. The use of carburettors was calculated to give a higher specific power output, due to the lower temperature, and hence the greater density, of the fuel/air mixture fed into the motor, compared to injected systems. In March 1941, a metal diaphragm with a hole in it was fitted across the float chambers. It partly cured the problem of fuel starvation in a dive, and became known as "Miss Shilling's orifice" as it was invented by a female engineer, Beatrice "Tilly" Shilling. Further improvements were introduced throughout the Merlin series, with Bendix-manufactured injection carburettors introduced in 1943.

Production

The prototype (K5054) first flew on 6 March 1936, from Eastleigh Aerodrome (later Southampton Airport), just four months after the maiden flight of the contemporary Hawker Hurricane. Testing continued until 26 May 1936, when Captain J. "Mutt" Summers, (Chief Test Pilot for Vickers (Aviation) Ltd.) flew K5054 to RAF Martlesham Heath and handed the aircraft over to Squadron Leader Anderson of the Aeroplane & Armament Experimental Establishment (A&AEE).^[19]

The Air Ministry placed an order for 310 aircraft on 3 June 1936, before any formal report had been issued by the A&AEE, interim reports being issued on a piecemeal basis. The British public first saw the Spitfire at the RAF Hendon air-display on Saturday 27 June 1936.

Castle Bromwich

To build the Spitfires in the numbers anticipated, a huge new facility was started in July 1938 at Castle Bromwich, near Birmingham, as a "shadow" to Supermarine's original Southampton factories: the most modern machine tools then available were being installed two months after work started on the site. Although the project was at first managed and equipped by Morris Motors Ltd under Lord Nuffield, who was an expert in mass construction in the motor-vehicle industry, it was funded by government money. However, although the new factory had been completed in late 1939 continual problems were experienced in building a complete airframe. The Spitfire's stressed-skin construction required skills and techniques outside the experience of the local labour force and a continual stream of changes were demanded by the RAF. Finally, on 17 May 1940, with no sign of a single Spitfire being built, Lord Beaverbrook, Minister of Aircraft Production, outmanoeuvred Lord Nuffield and took over Castle Bromwich for the government. Beaverbrook immediately sent in experienced management staff and experienced workers from Supermarines and Vickers-Armstrongs. In June 1940, 10 Mk IIs were built, the first of thousands of Spitfires to emerge from Castle Bromwich (which also built 305 Avro Lancasters).^[20]

Production dispersal

The Germans were fully aware of the importance of the Spitfire and during the Battle of Britain concerted efforts were made by the Luftwaffe to destroy the main manufacturing plants at Woolston and Itchen, near Southampton. The first raid, which missed the factories, came on 23 August. Over the next month other raids were mounted until, on 26 September both factories were completely wrecked, with 92 people being killed and a large number injured: most of the casualties were experienced aircraft production workers.^[21][22]

Fortunately for the future of the Spitfire many of the production jigs and machine tools had already been relocated by 20 September and steps were being taken to disperse production to small local facilities throughout the Southampton area. To this end the British government requisitioned the likes of Vincent's Garage in Station Square Reading, which later specialised in manufacturing Spitfire fuselages, and Anna Valley Motors, Salisbury which was to become the sole producer of the wing leading-edge fuel tanks for photo reconnaissance Spitfires, as well as producing other components. A purpose built works, specialising in manufacturing fuselages and installing engines, was built at Star Road, Caversham in Reading. The drawing office, in which all Spitfire designs were drafted was relocated to another purpose built site at Hursley Park, near Southampton. This site also had an aircraft assembly hanger, with its associated aerodrome, where many of the prototype and experimental Spitfires were assembled and flown.^[21]

Four towns and their satellite airfields were chosen to be the focal points for these workshops. They were:

• Southampton and Eastleigh Airport
• Salisbury with High Post and Chattis Hill aerodromes^[23]
  • Trowbridge with Keevil aerodrome
  • Reading with Henley and Aldermaston aerodromes.

  Completed Spitfires were delivered to the airfields on large Commer "Queen Mary" low-loader articulated trucks, there to be fully assembled, tested, then passed on to the RAF.^[21]

  Flight Testing

  One of the factors in the success of the Spitfire is that every single one built was flight tested before delivery. During the Second World War Jeffrey Quill was Vickers Supermarine's chief test pilot who oversaw a group of 10 to 12 pilots^[24] responsible for testing all developmental and production Spitfires built by the company in the Southampton area. Jeffrey Quill devised the standard testing procedures, which, with some variations for the numerous variants, operated from 1938, and was in charge of all flight testing of all aircraft types built by Vickers Supermarine.^[25][26] Alex Henshaw, Chief Test Pilot at Castle Bromwich from 1940, was placed in charge of testing all Spitfires built at that factory, coordinating a team of 25 pilots, and also assessing Spitfire developments. It is estimated that Henshaw flew at least 10% of all Spitfires built.^[27][28]

  A total of 20,351 examples of all variants were built, including two-seat trainers, with some Spitfires remaining in service well into the 1950s. The Spitfire was the only British fighter aircraft to be in continual production before, during, and after the Second World War.^[29]

  Operational history

  Main article: Supermarine Spitfire operational history

  The operational history of the Spitfire with the RAF started with the first Mk Is, which entered service with 19 Squadron on 4 August 1938. The last flight of a Spitfire in RAF service, which took place on 9 June 1957, was by a PR 19, PS583, from RAF Woodvale of the Temperature and Humidity Flight. This was also the last known flight of a piston-engined fighter in the RAF.

  Although The Spitfire achieved legendary status during the Battle of Britain it is now sometimes forgotten that the aircraft was to continue to play increasingly diverse roles throughout World War II and beyond, often in air forces other than the RAF.

  For example, the Spitfire became the first high-speed photo-reconnaissance aircraft to be operated by the RAF. Unarmed and armed, at high, medium and low altitudes, and often ranging far into enemy territory, these Spitfires kept a close watch on the Axis powers, providing an almost continual flow of valuable intelligence information right throughout the war. In 1941 and 1942 PRU Spitfires were to provide the first photographs of the Freya and Würzburg radar systems and, in 1943, would help confirm that the Germans were building the V1 and V2 vergeltungswaffe ("vengeance weapons") by photographing Peenemünde, on the Baltic Sea coast of Germany.

  In the Mediterranean the Spitfire blunted the heavy attacks on Malta by the Regia Aeronautica and Luftwaffe and, from early 1943, helped pave the way for the Allied invasions of Sicily and Italy. Over the Northern Territory of Australia RAAF Spitfires helped defend the port city of Darwin against air attack by the Japanese Naval Air Force.

  These are just some of the many facets of the operational history of the Spitfire.

  Speed and altitude records

  

  

  The Spitfire Mk XI flown by Sqn. Ldr. Martindale, seen here after its flight on 27 April 1944 during which it was damaged achieving a true airspeed of 606 mph (975 km/h).

  Beginning in late 1943, high-speed diving trials were undertaken at Farnborough to investigate the handling characteristics of aircraft travelling at speeds near the sound barrier (i.e. the onset of compressibility effects). Because it had the highest limiting Mach number of any aircraft at that time, a Spitfire XI was chosen to take part in these trials. Due to the high altitudes necessary for these dives, a fully feathering Rotol propeller was fitted to prevent overspeeding. It was during these trials that EN409, flown by Squadron Leader J. R. Tobin, reached 606 mph (975 km/h, Mach 0.891) in a 45 degree dive. In April 1944 the same aircraft suffered engine failure in another dive while being flown by Squadron Leader A. F. Martindale, when the propeller and reduction gear broke off. Martindale successfully glided the 20 miles (32 km) back to the airfield and landed safely.

  That any operational aircraft off the production line, cannons sprouting from its wings and warts and all, could readily be controlled at this speed when the early jet aircraft such as Meteors, Vampires, P-80s, etc could not, was certainly extraordinary. ― Jeffrey Quill^[25]

  On 5 February 1952, a Spitfire 19 of No. 81 Squadron RAF based in Hong Kong reached probably the highest altitude ever achieved by a Spitfire. The pilot, Flight Lieutenant Ted Powles, was on a routine flight to survey outside air temperature and report on other meteorological conditions at various altitudes in preparation for a proposed new air service through the area. He climbed to 50,000 feet (15,240 m) indicated altitude, with a true altitude of 51,550 feet (15,712 m). The cabin pressure fell below a safe level, and in trying to reduce altitude, he entered an uncontrollable dive which shook the aircraft violently. He eventually regained control somewhere below 3,000 feet (900 m) and landed safely with no discernible damage to his aircraft. Evaluation of the recorded flight data suggested that, in the dive, he achieved a speed of 690 mph (1,110 km/h, Mach 0.94), which would have been the highest speed ever reached by a propeller-driven aircraft.^[30]

  The critical Mach number of the Spitfire's original elliptical wing was higher than the subsequently-used laminar-flow-section, straight-tapering planform wing of the follow-on Supermarine Spiteful, Seafang and Attacker, illustrating that Reginald Mitchell's thoughtful and practical engineering approach to the problems of high speed flight had paid off handsomely.

  Variants

  Main article: Supermarine Spitfire variants part one

  Image:SpitfireDuxford2JM.jpg

  Duxford, 2001. The "Grace Spitfire," a preserved trainer version, ex-No. 485 Squadron RNZAF.

  As its designer, R.J. Mitchell will forever be known for his most famous creation. However, the development of the Spitfire did not cease with his premature death in 1937. Mitchell only lived long enough to see the prototype Spitfire fly. Subsequently a team led by his Chief Draughtsman, Joe Smith, would develop more powerful and capable variants to keep the Spitfire current as a front line aircraft. As one historian noted: "If Mitchell was born to design the Spitfire, Joe Smith was born to defend and develop it."

  There were 24 marks of Spitfire and many sub-variants. These covered the Spitfire in development from the Merlin to Griffon engines, the high speed photo-reconnaissance variants and the different wing configurations. The Spitfire Mk V was the most common type, with 6,487 built, followed by the 5,656 Mk IX airframes produced.^[31] Different wings, featuring a variety of weapons, were fitted to most marks; the A wing used eight .303 machine guns, the B with four .303 machine guns and two 20 mm Hispano cannon, and the C or Universal Wing which could mount either four 20 mm cannon or two 20 mm and four .303 machine guns. As the war progressed, the C wing became more common.^[32] The final armament variation was the E wing which housed two 20 mm cannon and two .50 inch Browning heavy machine guns.

  Image:SpitfireIX611a.jpg

  Pilots of 611 West Lancashire Squadron lend a hand pushing an early Spitfire Mark IXb, Biggin Hill, late 1942. (RAF Official)

  Supermarine developed a two-seat variant to be used for training and was known as the T Mk VIII, but no orders were received for this aircraft and only one example was ever constructed (identified as N32/G-AIDN by Supermarine). However, in the absence of an official two-seater variant, a number of airframes were crudely converted in the field. These included an RAF Mk VB in North Africa, where a second seat was fitted instead of the upper fuel tank in front of the cockpit; although it was not a dual-control aircraft and is thought to have been used as the squadron "run-about." The only unofficial two-seat conversions that were fitted with dual-controls were a small number of Russian lend/lease Mk IX aircraft. These were referred to as Mk IX UTI and differed from the Supermarine proposals by using an inline "greenhouse" style double canopy rather than the raised "bubble" type of the T Mk VIII.

  In the postwar era, the idea was revived by Supermarine and a number of two-seat Spitfires were built by converting old Mk IX airframes with a second "raised" cockpit featuring a bubble canopy. These TR9 variants were then sold to the Indian Air Force and a total of nine to the Irish Air Corps. Today, only a handful of the trainers are known to exist, including both the T Mk VIII and a T Mk IX based in the U.S., and the "Grace Spitfire" ML407 – a variant of the Mk IX that is a privately owned (formerly IAC-162) TR9 and operates out of Duxford, UK. The second cockpit of this aircraft has been lowered and is now below the front cockpit. IAC-161 (Previously PV202) has also been recently restored to flying condition.

  Naval variants

  Main article: Supermarine Seafire

  The Seafire was a naval version of the Spitfire specially adapted for operation from aircraft carriers. Although never conceived for the rough-and-tumble of carrier-deck operations, the Spitfire was considered to be the best candidate available at the time and went on to serve with distinction. Modifications included an arrester hook, folding wings and other specialised equipment. Some features of the basic design were, whilst unproblematic for land operation, problematic for carrier deck operations. One was poor visibility over the nose; and like the Spitfire, the Seafire had a relatively narrow undercarriage track which meant that it was not ideally suited to deck operations. The addition of heavy carrier equipment also added to the weight of the machine and reduced low-speed stability, critical for such operations, and normally a forte of the Spitfire. Early marks of Seafire had relatively few modifications, however late marks were heavily-adapted.

  The Seafire II was able to outperform the A6M5 (Zero) at low altitudes when the two types were tested against each other during wartime mock combat exercises. Contemporary Allied carrier fighters such as the F6F Hellcat and F4U Corsair, however, were considerably more robust and practical for carrier operations. A performance advantage was regained when late-war Seafire marks equipped with the Griffon engines supplanted their Merlin-engined predecessors.

  The name Seafire was arrived at by collapsing the longer name Sea Spitfire.

  Griffon-engined variants

  Main article: Supermarine Spitfire variants part two

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  The first Griffon-powered Spitfire, DP845.

  The first Rolls Royce Griffon-engined Mk XII flew on August 1942, but only five had reached service status by the end of the year. This mark could nudge 400 mph in level flight and climb to an altitude of 30,000 feet (10,000 m) in under eight minutes. Although the Spitfire continued to improve in speed and armament, range and fuel capacity were major issues: it remained "short-legged" throughout its life except in the dedicated photo-reconnaissance role, when its guns were replaced by extra fuel tanks.

  Newer Griffon-engined Spitfires were being introduced as home-defence interceptors, where limited range was not an impediment. These faster Spitfires were used to defend against incursions by high-speed "tip-and-run" German fighter-bombers and V-1 flying bombs over Great Britain.

  As American fighters took over the long-range escorting of USAAF daylight bombing raids, the Griffon-engined Spitfires progressively took up the tactical air superiority role as interceptors, while the Merlin-engined variants (mainly the Mk IX and the Packard-engined XVI) were adapted to the fighter-bomber role.

  Image:Supermarine Spitfire F Mk XIIs of 41 Sqn.jpg

  Spitfire LF. Mk. XIIs of 41 Squadron in mid-1943.

  Although the later Griffon-engined marks lost some of the favourable handling characteristics of their Merlin-powered predecessors, they could still out-manoeuvre their main German foes and other, later American and British-designed fighters. The distinctive Merlin sound of a supercharger whine and the accompanying whistle from the under-wing radiators was replaced by a deeper, throatier growl.^[25]

  Griffon-engined Spitfires and Seafires continued to be flown by many squadrons of the Royal Auxiliary Air Force and Royal Naval Volunteer Reserve until re-equipped in 1951–52.

  In late 1962, Air Marshal Sir John Nicholls instigated an interesting trial when he flew a Spitfire against the supersonic Lightning F 3 interceptor in mock combat at RAF Binbrook. At the time British Commonwealth forces were involved in possible action against Indonesia over Malaya and Nicholls decided to develop tactics to fight the Indonesian Air Force P-51 Mustang, a fighter that had a similar performance to the Spitfire PR 19.^[33] He concluded that the most effective and safest way for a modern jet-engined fighter to attack a piston-engined fighter was from below and behind; contrary to all established fighter-on-fighter dictum.^[34]

  Survivors

  Image:Supermarine Spitfire Mk XVI NR.jpg

  Preserved Spitfire at Duxford. Notice the late-war "bubble" canopy

  There are approximately 44 Spitfires and a few Seafires airworthy worldwide, although many air museums have static examples. For example, Chicago's Museum of Science and Industry has paired a static Spitfire with a static Ju 87 R-2/Trop. Stuka dive bomber.^[35]

  • The RAF Battle of Britain Memorial Flight at RAF Coningsby in Lincolnshire maintains and operates five Spitfires (of various marks) for flying display and ceremonial purposes.
  • A Spitfire XIVe, MV293 owned by The Fighter Collection at Duxford is marked as MV268, JE-J, flown by Wing Commander Johnnie Johnson OC 127 Wing, Germany May 1945. There are regularly more than a dozen Spitfires on site at Duxford. Whilst some of these are under restoration in a private hangar many flying and static examples can be seen in hangars one to 5.
  • The Temora Aviation Museum in Temora, New South Wales, Australia, has two airworthy Spitfires: a Mk VIII and a Mk XVI, which are flown regularly during the museum's flying weekends.^[36]
    • A Supermarine Spitfire LF Mk XVIE is on display in the Polish Aviation Museum.
    • The Hellenic Air Force Museum own and displays a Supermarine Spitfire Mk IXc.^[37]
      • Kennet Aviation, a British company specializing in ex-military aircraft has a Seafire XVII and a number of Seafire projects at its home airfield at North Weald Airfield.^[38]
        Image:Spitfires.JPG

        Spitfires at Goodwood, West Sussex 2006
        • The Black Spitfire is a black-painted Spitfire which belonged to Israeli pilot and former president Ezer Weizman. It is on exhibit in the Israeli Air Force Museum in Hatserim and is used for ceremonial flying displays.
        • Kermit Weeks keeps a restored Mk XVI at his Fantasy of Flight museum in Florida.^[39]
          • The "Asas de Um Sonho" Museum, located in São Carlos, Brazil, owns the only airworthy Spitfire in South America, a Mk IXc donated to the museum by Rolls Royce and painted in the colors and markings of RAF ace Johnnie Johnson.
          • One of the newest Spitfires to fly in Canadian skies is Michael Potter's Supermarine Mk XVI Spitfire SL721/N721WK/C-GVZB, refinished in the markings of No. 421 Squadron RCAF and is now registered in Gatineau, Quebec as part of the Vintage Wings of Canada Collection.
          • A Seafire 47, the final aircraft in the long and distinguished line of aircraft, is airworthy with Jim Smith in the U.S. after being restored by Ezell Aviation.
          • The Shuttleworth Collection maintains and displays an airworthy Mk Vc, AR501.
          • One Spitfire Mk IX is on display at the "Vigna di Valle Museum" (Italian Air Force Museum) Bracciano, Rome, Italy.
          • A Spitfire Mark XVI has been displayed at the Auckland War Memorial Museum, New Zealand, since 1956 when New Zealander Sir Keith Park, commander of No 11 Fighter Group, arranged for it to be donated.
          • The Lone Star Flight Museum in Galveston, Texas has a Spitfire Mk. XVI TE392/N97RW in flying condition painted in honor of Texas Ace, Lance C. Wade who flew with the RAF from December 1940 until his death in Foggia Italy, 1944.

          Memorials

          • Sentinel is a sculpture by Tim Tolkien in Castle Bromwich, England, commemorating the main Spitfire factory.
          • A sculpture of the prototype Spitfire, K5054, stands on the roundabout at the entrance to Southampton International Airport, which, as Eastleigh Aerodrome, saw the first flight of the aircraft in March 1936
          • There is also a Spitfire on display on the Thornaby Road roundabout near the school named after Douglas Bader who flew a Spitfire in the Second World War. This memorial is in memory of the old RAF base in Thornaby which is now a residential estate.
          • The last remaining Spitfire in its original paint is displayed in the Australian War Memorial in Canberra; it has not been repainted since the Second World War.

          Operators

          See also: List of Supermarine Spitfire operators

          Image:Spitfire at temora nswedit.jpg

          The Spitfire Mk VIII "Grey Nurse" which saw action with No. 457 Squadron RAAF in the South West Pacific Area is one of two Spitfires still flying in Australia, both owned by Temora Aviation Museum.
          Image:Spitfire V 316.jpg

          Polish Spitfire Mk V from the 303 Kościuszko Squadron flown by S/Ldr Zumbach
          Image:SpitIntl Illust3.JPG

          American Spitfire MK V of the 334th Fighter Squadron, 4th Fighter Group.

           Australia

           Belgium

           Burma

          Image:Flag of Canada 1921.svg Canada

           Czechoslovakia

           Denmark

           Egypt

           France

           Germany

           Greece

           Hong Kong

           India

           Ireland

           Israel

           Italy

           Netherlands

           New Zealand

           Norway

           Poland

          ^[40]

           Portugal

           Rhodesia

           South Africa

           Soviet Union

           Sweden

           Syria

           Thailand

           Turkey

           United Kingdom

           United States

           Yugoslavia

          This list is incomplete; you can help by expanding it.

          Popular culture

          • The First of the Few (also known as Spitfire in the U.S. and Canada) (1942) was a British film produced and directed by Leslie Howard, with Howard in the starring role of R.J. Mitchell. It tells the story of Mitchell's life and how he developed the design for the famous British fighter aircraft. David Niven plays his friend and test pilot Geoffrey Crisp, who narrates the biography in flashback. Leslie Howard bore little resemblance to R.J. Mitchell, however, as Mitchell was a large and athletic man. Howard portrayed Mitchell as upper-class and mild-mannered. Mitchell – "the Guv'nor" – was in fact working-class and had an explosive temper; apprentices were told to watch the colour of his neck and to run if it turned red. Some of the footage includes film shot in 1941 of operational Spitfires and pilots of 501 Squadron (code letters SD).
          • Malta Story (1953) starring Alec Guinness, Jack Hawkins, Anthony Steel and Muriel Pavlow, is a black and white war film based on the heroic defence of Malta in 1942, the island itself, its people, and the RAF aviators who fought to defend it. The unique footage used in the film is equivalent to true historic archive material, and many scenes were shot next to the real types of aircraft still existing in Malta at that time. The Spitfires shown in action are, however, mainly of the Mark IX, XIV and XVI types that flew from Malta after 1943-44. In 1942 the RAF was mainly using the Mark V type that only appears rarely in the film. In the footage one can see however the aircraft that attacked Malta, such as the Italian SM.79 and the German Bf109F.
          • Reach for the Sky (1956) starring Kenneth More tells the story of Douglas Bader; late mark Spitfires with 'teardrop' canopies, inappropriate for the period, were used for filming.
          • Battle of Britain (1969) starring Sir Laurence Olivier, Michael Caine, Christopher Plummer, Ralph Richardson, Michael Redgrave, Susannah York and many others. Set in 1940, this film features several sequences involving a total of 12 flying Spitfires, as well as a number of other flying examples of Second World War-era British and German aircraft. The film's production company was "Spitfire Productions, Steven S.A."
          • British band Iron Maiden's song "Aces High" (1984) describes the aerial encounter between the RAF and Luftwaffe during the Battle of Britain: "Bandits at 8 o'clock move in behind us, 10 ME 109s out of the sun, Ascending and turning our Spitfires to face them, Heading straight for them I press down my guns."
          • Piece of Cake (television) (1987) starring Tom Burlinson. When it aired on the ITV network in 1987, this was the most watched miniseries in history. Based on the novel by Derek Robinson, the six-part miniseries covered the prewar era to "Battle of Britain Day," 15 September 1940. The series had time to develop its large cast, and depicted the air combat over the skies of France and Britain during the early stages of the Second World War, though using five flying examples of late model Spitfires in place of the novel's early model Hawker Hurricanes. There were shots of several Spitfires taking off and landing together from grass airstrips.
          • Dark Blue World (2001), starring Ondřej Vetchý was a film about a Free Czech pilot flying a Spitfire during the Second World War. Besides original footage, it also used out-takes from the earlier Battle of Britain film.
          • American pilots in the movie Pearl Harbor (2001) are shown flying Spitfires during part of the film; Ben Affleck's character gets shot down over the English Channel.
          • Several episodes of the ITV series Foyle's War (originally airing in 2001) focus on young RAF pilots who fly Spitfires. A real Spitfire Mark V was used in the filming.
          • Spitfire Ace (2004) was a four-part mini series from RDF Media that depicted four young pilots undergoing the same training that Battle of Britain pilots would have received. One pilot was eventually selected to proceed to training in the "Grace Spitfire."
          • English band The Prodigy's song "Spitfire" (2005) pays homage to the fighter with the repeated line "If I was in World War II, they'd call me Spitfire."

          Specifications (Spitfire Mk Vb)

          Data from The Great Book of Fighters^[41] and Jane’s Fighting Aircraft of World War II^[42]

          General characteristics

          • Crew: one pilot
          • Length: 29 ft 11 in (9.12 m)
          • Wingspan: 36 ft 10 in (11.23 m)
          • Height: 11 ft 5 in (3.86 m)
          • Wing area: 242.1 ft² (22.48 m²)
          • Airfoil: NACA 2200
          • Empty weight: 5,090 lb (2,309 kg)
          • Loaded weight: 6,622 lb (3,000 kg)
          • Max takeoff weight: 6,770 lb (3,071 kg)
          • Powerplant: 1× Rolls-Royce Merlin 45 supercharged V12 engine, 1,470 hp at 9,250 ft (1,096 kW at 2,820 m)

          Performance

          • Maximum speed: 378 mph, (330 knots605 km/h)
          • Combat radius: 410 nmi (470 mi, 760 km)
          • Ferry range: 991 nmi (1,140 mi, 1,840 km)
          • Service ceiling 35,000 ft (11,300 m)
          • Rate of climb: 2,665 ft/min (13.5 m/s)
          • Wing loading: 24.56 lb/ft² (119.91 kg/m²)
          • Power/mass: 0.22 hp/lb (360 W/kg)

          Armament

          • Guns: Mk I, Mk II, Mk VA
            
            • 8x 0.303 inch (7.7 mm) Browning machine guns, 350 rounds per gun

          Later versions (VB on)
          

          • • 2× 20 mm (0.787 in) Hispano Mk II cannon, 60 (later 120 (Mk VC)) shells per gun
            • 4× 0.303 inch (7.7 mm) Browning machine guns, 350 rounds per gun
          • Bombs:
            
            • 2× 250 lb (110 kg) bombs

        See also

        • British military history of World War II
        • Lucy, Lady Houston
        • Rolls-Royce Merlin and Griffon
        • Supermarine
        • Allied Technological Cooperation During WW2
          

        Related development

        • Supermarine S.6B
        • Supermarine Seafire
        • Supermarine Spiteful
        • Supermarine Seafang
          

        Comparable aircraft

        • Bell P-39
        • Curtiss P-40
        • Dewoitine D.520
        • Focke Wulf Fw 190
        • Hawker Hurricane
        • Hawker Tempest
        • Heinkel He 112
        • Kawasaki Ki-61 Hien
        • Macchi MC.202 Folgore
        • Macchi C.205 Veltro
        • Martin-Baker M.B.5
        • Messerschmitt Bf 109
        • Mikoyan-Gurevich MiG-3
        • North American P-51 Mustang
        • Yakovlev Yak-9
          

        Related lists

        • List of most produced aircraft
        • List of aircraft of the RAF
          

        References

        Notes

        1. ^ Price, 1986. p.67.
        2. ^ ^{a b}
        3. ^ Green 1975
        4. ^ Spitfire XIV vs Bf 109 G/K
        5. ^ Avia.russia.ee Supermarine Type 224 Retrieved: 6 March 2007.
        6. ^ Price, 1999. p 16, 17.
        7. ^ Wikidictionary: spitfire
        8. ^ Deighton 1977, p. 99.
        9. ^ Spitfire constructionRetrieved 20 February 2008
        10. ^ Spitfires and Polished Metal: Restoring the Classic Fighter Graham Moss and Barry McKee, Airlife, 1999
        11. ^ Note: The ellipse is proven to be the most efficient wing shape in terms of optimum spanwise lift distribution, whilst the associated chord tapering results in a high aspect ratio, important for lessening induced drag so that airflow does not ‘break’ over the wing. Also of noteworthy importance is the type’s low thickness-to-chord ratio – the thin wings promote effective airflow, another vital factor in reducing drag.
        12. ^ Carpenter 1996
        13. ^ Note: Starting with the Merlin XII fitted in Spitfire Mk IIs in late 1940 this was changed to a 70% water-30% glycol mix.
        14. ^ Note: See Supermarine Spitfire variants for details.
        15. ^ ^{a b} Price 1999
        16. ^ Spifire I versus Bf 109E
        17. ^ Dibbs and Holmes, 1997. p.190.
        18. ^ Tanner,1976. Section 1. Fig. 1.
        19. ^ Note: Although March 5 has often appeared as the date of the first flight, Alfred Price has researched the subject and explains in The Spitfire Story that 6 March is the right date.
        20. ^ Castle Bromwich Retrieved: 9 February 2008.
        21. ^ ^{a b c} Smallwood 1996, p. 8–15.
        22. ^ A worker at Woolston Retrieved: 9 February 2008.
        23. ^ Note: On the road between Salisbury and Andover there is a "Spitfire Lane" leading to the Chattis Hill aerodrome Discussion on Spitfire shadow sites Retrieved: 10 February 2008.
        24. ^ Note: the test pilots were based at Highpost and flown by light aircraft to the other airfields.
        25. ^ ^{a b c}
        26. ^ Spitfire Testing Retrieved: 9 September 2008.
        27. ^ Alex Henshaw, 1999
        28. ^ Henshaw Retrieved: 9 February 2008.
        29. ^ Lists of serial numbers/contractsRetrieved: 22 February 2008.
        30. ^ (Pdf file) Description of this flight
        31. ^ Spitfire: Simply Superb part three. Air International, Volume 28, Number 4. April 1985.
        32. ^ Flintham 1990, p. 254–263.
        33. ^ Green 2007, p. 91.
        34. ^ Price 1991, p. 158.
        35. ^ List of Airworthy SpitfiresRetrieved 23 February 2008
        36. ^ Aviation Museum (AU)
        37. ^ Hellenic Air Force Museum Spitfire
        38. ^ Area 51.
        39. ^ Spitfire at Fantasy of Flight
        40. ^ List of Spitfire I and II aircraft used by Polish Air Force squadrons (PDF file)
        41. ^ Green and Swanborough 2001
        42. ^ Jane 1946, p. 139–141.

        
        

        Bibliography

        • Bader, Douglas. Fight for the Sky: The Story of the Spitfire and Hurricane. London: Cassell Military Books, 2004. ISBN 0-30435-674-3.
        • Bungay, Stephen. The Most Dangerous Enemy – A History of the Battle Of Britain. London: Aurum, 2006. ISBN 1-85410-801-8.
        • Carpenter, Chris. Flightwise: Part 1, Principles of Aircraft Flight. Shrewsbury, UK: AirLife, 1996. ISBN 1-85310-719-0.
        • Cull, Brian with Galea, Fredrick. Spitfires Over Malta: The Epic Air Battles of 1942. London: Grub Street, 2005. ISBN 1-904943-30-6
        • Deighton, Len. Fighter: The True Story of the Battle of Britain. London: Grafton 1977. ISBN 0-78581-208-3.
        • Dibbs, John and Holmes, Tony. Spitfire: Flying Legend. Southampton, UK: Osprey Publishing, 1997. ISBN 1-84176-005-6.
        • Flack, Jeremy. Spitfire - The World's Most Famous Fighter. London: Chancellor Press, 1994. ISBN 1-85152-637-4.
        • Flintham, Victor. Air Wars and Aircraft: A Detailed Record of Air Combat, 1945 to the Present. New York: Facts on File, 1990. ISBN 0-81602-356-5.
        • Green, Peter. "Spitfire Against a Lightning." Flypast No. 315, October 2007.
        • Green, William. Famous Fighters of the Second World War, 3rd ed. New York: Doubleday, 1975. ISBN 0-356-08334-9.
        • Green, William and Swanborough, Gordon. The Great Book of Fighters. St. Paul, Minnesota: MBI Publishing, 2001. ISBN 0-7603-1194-3.
        • Gueli, Marco. "Spitfire con Coccarde Italiane (Spitfire in Italian service)." (in Italian) Storia Militare n.62, November 1998.
        • Henshaw, Alex. Sigh for a Merlin: Testing the Spitfire: 2Rev Ed edition . London: Crecy Publishing, 1999. ISBN 0-9475-5483-5.
        • Holmes, Tony. Spitfire vs Bf 109: Battle of Britain. London: Osprey Aerospace, 2007. ISBN 978-1-84603-190-8
        • Jane, Fred T. “The Supermarine Spitfire.” Jane’s Fighting Aircraft of World War II. London: Studio, 1946. ISBN 1-85170-493-0.
        • Jane, Fred T. Jane's Fighting Aircraft of World War II(reprint). New York: Crescent Books, 1998. ISBN 0-517-67964-7.
        • McKinstry, Leo. Spitfire - Portrait of a Legend. London: John Murray, 2007. ISBN 0-71956-874-9.
        • Morgan, Eric B. and Shacklady, Edward. Spitfire: The History. London: Key Publishing, 1992. ISBN 0-946219-10-9.
        • Price, Alfred. The Spitfire Story: Second edition. London: Arms and Armour Press Ltd., 1986. ISBN 0-85368-861-3.
        • Price, Alfred. Spitfire - Fighter Supreme. London: Arms and Armour Press, 1991. ISBN 1-85409-056-9.
        • Price, Alfred. The Spitfire Story: New edited edition. London: Weidenfeld Military, 1999. ISBN 1-85409-514-5.
        • Quill. Jeffrey. Spitfire: A Test Pilot’s Story. London: Arrow Books, 1983. ISBN 0-09-937020-4.
        • Shores, Christopher and Cull, Brian with Malizia, Nicola. Malta: The Spitfire Year. London: Grub Street, 1991. ISBN 0-948817-16-X.
        • Smallwood, Hugh. Spitfire in Blue. London: Osprey Aerospace, 1996. ISBN 1-85532-615-9
        • Spick, Mike. Supermarine Spitfire. New York: Gallery Books, 1990. ISBN 0-8317-14034.
        • Tanner, John. The Spitfire V Manual (AP1565E reprint). London: Arms and Armour Press, 1981. ISBN 0-85368-420-0.

        
        

        External links

        

        Wikimedia Commons has media related to:

        Supermarine Spitfire
        • The Spitfire Site
        • The Spitfire Society
        • Alan Le Marinel hosts Supermarine Spitfire
        • Spitfire Performance Testing
        • Combat History of the Supermarine Spitfire - The Defence of Malta (1942)
        • Pacific Spitfires
        • Warbird Alley: Spitfire page - Information about Spitfires still flying today
        • K5054 - Supermarine Type 300 prototype Spitfire & production aircraft history
        • Spitfire/Seafire Serial Numbers, production contracts and aircraft histories
        • The Supermarine Spitfire in Indian Air Force Service
        • The Spitfire: Seventy Years On - Includes images of the factory
        • Spitfire Mk. VIII and Mk. XVI - Temora Aviation Museum page
        • National Heritage Warbird Foundation
        • Airworthy Spitfires
        • Supermarine Spitfire - History of a legend (RAF Museum)
        • 5071 Spitfire, a Great Western Railway Castle Class locomotive was named after the aircraft in 1940.
        • Article that presents the Norwegian history of famous Spitfire ML407 - The Grace Spitfire
        • Spitfire restoration.com
        • Spitfire IIA & IIB Pilot's Manual; Pdf file

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