Coordinates | 29°25′″N98°30′″N |
---|---|
{{infobox aircraft begin |name | Supermarine Spitfire |image File:Ray_Flying_Legends_2005-1.jpg |caption Spitfire LF Mk IX, ''MH434'', flown by Ray Hanna in 2005. This aircraft shot down a Fw 190 in 1943 while serving with 222 Squadron RAF. }} |
{{infobox aircraft type |type | Fighter / Photo-reconnaissance aircraft |manufacturer Supermarine |designer R. J. Mitchell |first flight 5 March 1936 |introduction 4 August 1938 |retired 1961 Irish Air Corps |status |primary user Royal Air Force |more users |produced 1938–1948 |number built 20,351 |unit cost £12,604 (Estonian order for 12 Spitfire in 1939). |variants with their own articles Supermarine Seafire Supermarine Spiteful }} |
---|
The Spitfire was designed as a short-range, high-performance interceptor aircraft by R. J. Mitchell, chief designer at Supermarine Aviation Works (since 1928 a subsidiary of Vickers-Armstrong). Mitchell continued to refine the design until his death from cancer in 1937, whereupon his colleague Joseph Smith became chief designer. The Spitfire's elliptical wing had a thin cross-section, allowing a higher top speed than several contemporary fighters, including the Hawker Hurricane. Speed was seen as essential to carry out the mission of home defence against enemy bombers.
During the Battle of Britain, the Spitfire was perceived by the public as ''the'' RAF fighter of the battle, whereas in fact, the more numerous Hurricane actually shouldered a greater proportion of the burden against the ''Luftwaffe''. The Spitfire units did, however, have a lower attrition rate and a higher victory to loss ratio than those flying Hurricanes .
After the Battle of Britain, the Spitfire became the backbone of RAF Fighter Command, and saw action in the European, Mediterranean, Pacific and the South-East Asian theatres. Much loved by its pilots, the Spitfire served in several roles, including interceptor, photo-reconnaissance, fighter-bomber, carrier-based fighter, and trainer. It was built in many variants, using several wing configurations. Although the original airframe was designed to be powered by a Rolls-Royce Merlin engine producing 1,030 hp (768 kW), it was adaptable enough to use increasingly more powerful Merlin and the later Rolls-Royce Griffon engines; the latter was eventually able to produce 2,035 hp (1,520 kW).
R. J. Mitchell's 1931 design to meet Air Ministry specification F7/30 for a new and modern fighter capable of , 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. The Type 224 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. Of the seven designs tendered to F/30, the Gloster Gladiator biplane was accepted for service.
Mitchell had already begun working on a new aircraft, designated Type 300, based on the Type 224, but with a retractable undercarriage and the wingspan reduced by . The Type 300 was submitted to the Air Ministry in July 1934, but again was not accepted. The design then evolved through a number of changes, including incorporating a faired, enclosed cockpit, oxygen-breathing apparatus, smaller and thinner wings, and the newly-developed, more powerful Rolls-Royce PV-XII V-12 engine, later named the "Merlin". In November 1934, Mitchell, with the backing of Supermarine's owner, Vickers-Armstrong, started detailed design work on this refined version of the Type 300 and, on 1 December 1934, the Air Ministry issued a contract ''AM 361140/34'', providing £10,000 for the construction of Mitchell's improved F7/30 design. On 3 January 1935, the Air Ministry formalised the contract and a new Specification F10/35 was written around the aircraft.
In April 1935, the armament was changed from two .303 in (7.7 mm) Vickers machine guns in each wing to four .303 in (7.7 mm) Brownings, following a recommendation by Squadron Leader Ralph Sorley of the Operational Requirements section at the Air Ministry.
On 5 March 1936, the prototype (''K5054'') took off on its first flight from Eastleigh Aerodrome (later Southampton Airport). At the controls was Captain Joseph "Mutt" Summers, chief test pilot for Vickers (Aviation) Ltd., who was reported in the press as saying "Don't touch anything" on landing. This eight minute flight came four months after the maiden flight of the contemporary Hurricane.
''K5054'' was fitted with a new propeller, and Summers flew the aircraft on 10 March 1936; during this flight the undercarriage was retracted for the first time. After the fourth flight, a new engine was fitted, and Summers left the test-flying to his assistants, Jeffrey Quill and George Pickering. They soon discovered that the Spitfire was a very good aircraft, but not perfect. The rudder was over-sensitive and the top speed was just 330 mph (528 km/h), little faster than Sydney Camm's new Merlin-powered Hurricane. A new and better-shaped wooden propeller meant the Spitfire reached 348 mph (557 km/h) in level flight in mid-May, when Summers flew ''K5054'' to RAF Martlesham Heath and handed the aircraft over to Squadron Leader Anderson of the Aeroplane & Armament Experimental Establishment (A&AEE). Here, Flight Lieutenant Humphrey Edwardes-Jones took over the prototype for the RAF. He had been given orders to fly the aircraft and then to make his report to the Air Ministry as soon as he landed. Edwardes-Jones made a positive report; his only request was that the Spitfire be equipped with an undercarriage position indicator. A week later, on 3 June 1936, the Air Ministry placed an order for 310 Spitfires, before any formal report had been issued by the A&AEE; interim reports were later issued on a piecemeal basis.
The British public first saw the Spitfire at the RAF Hendon air-display on Saturday 27 June 1936. Although full-scale production was supposed to begin immediately, there were numerous problems which could not be overcome for some time and the first production Spitfire, ''K9787'', did not roll off the Woolston, Southampton assembly line until mid-1938. The first and most immediate problem was that the main Supermarine factory at Woolston was already working at full capacity fulfilling orders for Walrus and Stranraer flying boats. Although outside contractors were supposed to be involved in manufacturing many important Spitfire components, especially the wings, Vickers-Armstrong (the parent company) were reluctant to see the Spitfire being manufactured by outside concerns and were slow to release the necessary blueprints and subcomponents. As a result of the delays in getting the Spitfire into full production, the Air Ministry put forward a plan that production of the Spitfire be stopped after the initial order for 310, after which Supermarine would build Bristol Beaufighters. The managements of Supermarine and Vickers were able to persuade the Air Ministry that the problems could be overcome and further orders were placed for 200 Spitfires on 24 March 1938, the two orders covering the K, L and N prefix serial numbers.
Mitchell's design aims were to create a well-balanced, high-performance bomber interceptor and fighter aircraft capable of fully exploiting the power of the Merlin engine, while being relatively easy to fly. At the time, no enemy fighters were expected to appear over Great Britain; to carry out the mission of home defence, the design was intended to climb quickly to meet enemy bombers.
The Spitfire's airframe was complex: the streamlined, semi-monocoque duralumin fuselage featured a large number of compound curves built up from a skeleton of 19 frames, starting from the main engine bulkhead (frame number one) to the tail unit attachment frame. Aft of the engine bulkhead were five half-frames to accommodate the fuel tanks and cockpit. From the seventh frame, to which the pilot's seat and (later) armour plating was attached, to the nineteenth, which was mounted at a slight forward angle just forward of the fin, the frames were oval, each reducing slightly in size and each with numerous holes drilled through them to lighten them as much as possible without weakening them. The U-shaped frame 20 was the last frame of the fuselage proper and the frame to which the tail unit was attached. Frames 21, 22 and 23 formed the fin; frame 22 incorporated the tailwheel opening and frame 23 was the rudder post. Before being attached to the main fuselage, the tail unit frames were held in a jig and the eight horizontal tail formers were riveted to them.
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. The fuselage plating was 24, 20 and 18 gauge in order of thickness towards the tail, while the fin structure was completed using short longerons from frames 20 to 23, before being covered in 22 gauge plating. There was ample room for camera equipment and fuel tanks which were to be fitted during the Spitfire's operational service life.
The skins of the fuselage, wings and tailplane were secured by rivets and in critical areas such as the wing forward of the main spar where an uninterrupted airflow was required, with flush rivets; the fuselage used standard dome-headed riveting. From February 1943 flush riveting was used on the fuselage, affecting all Spitfire variants. 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.
At first the ailerons, elevators and rudder were fabric-covered. When combat experience showed that fabric-covered ailerons were impossible to use at high speeds, fabric was replaced with a light alloy, enhancing control throughout the speed range.
In 1934, Mitchell and the design staff decided to use a semi-elliptical wing shape to solve two conflicting requirements; the wing needed to be thin, to avoid creating too much drag, while still able to house a retractable undercarriage, plus armament and ammunition. Beverley Shenstone, the aerodynamicist on Mitchell's team, explained why that form was chosen:
The elliptical wing was decided upon quite early on. Aerodynamically it was the best for our purpose because the induced drag, that caused in producing lift, was lowest when this shape was used: the ellipse was ... theoretically a perfection ... To reduce drag we wanted the lowest possible thickness-to-chord, consistent with the necessary strength. But near the root the wing had to be thick enough to accommodate the retracted undercarriages and the guns ... Mitchell was an intensely practical man... The ellipse was simply the shape that allowed us the thinnest possible wing with room inside to carry the necessary structure and the things we wanted to cram in. And it looked nice.
Mitchell has sometimes been accused of copying the wing shape of the Heinkel He 70, which first flew in 1932; but as Shenstone explained "Our wing was much thinner and had quite a different section to that of the Heinkel. In any case it would have been simply asking for trouble to have copied a wing shape from an aircraft designed for an entirely different purpose."
The wing section used was from the NACA 2200 series, which had been adapted to create a thickness-to-chord ratio of 13% at the root, reducing to 9.4% at the tip. A dihedral of six degrees was adopted to give increased lateral stability. The undercarriage legs were attached to pivot points built into the inner, rear section of the main spar and retracted outwards and slightly backwards into wells in the non-load-carrying wing structure. The resultant narrow undercarriage track was considered to be an acceptable compromise as this reduced the bending loads on the main-spar during landing. In turn, the leading-edge structure lost its function as a condenser, but it was later adapted to house integral fuel tanks of various sizes.
Another feature of the wing was its washout. The trailing edge of the wing twisted slightly upward along its span, the angle of incidence decreasing from +2° at its root to -½° at its tip. This caused the wing roots to stall before the tips, reducing tip-stall that could otherwise have resulted in a spin. As the wing roots started to stall, the aircraft vibrated, warning the pilot, and hence allowing even relatively inexperienced pilots to fly the aircraft to the limits of its performance. This washout was first featured in the wing of the Type 224 and became a consistent feature in subsequent designs leading to the Spitfire. The complexity of the wing design, especially the precision required to manufacture the vital spar and leading-edge structures, at first caused some major hold-ups in the production of the Spitfire. The problems increased when the work was put out to subcontractors, most of whom had never dealt with metal-structured, high-speed aircraft. By June 1939, most of these problems had been resolved, and Spitfire production was no longer held up by a lack of wings.
All of the main flight controls were originally metal structures with fabric covering.Designers and pilots felt that having ailerons which were too heavy to move at high speed would avoid possible aileron reversal, stopping pilots throwing the aircraft around and pulling the wings off. It was also felt that air combat would take place at relatively low speed and that high-speed manoeuvring would be physically impossible. During the Battle of Britain, pilots found the ailerons of the Spitfire were far too heavy at high speeds, severely restricting lateral manoeuvres such as rolls and high speed turns, which were still a feature of air-to-air combat. Flight tests showed the fabric covering of the ailerons "ballooned" at high speeds, adversely affecting the aerodynamics. Replacing the fabric covering with light alloy dramatically improved the ailerons at high speed.
The Spitfire had detachable wing tips which were secured by two mounting points at the end of each main wing assembly: when the Spitfire took on a role as a high altitude fighter (Marks VI and VII and some early Mk VIIIs) the standard wing tips were replaced by extended, "pointed" tips which increased the wingspan from 36 ft 10 in (11.23 m) to 40 ft 2 in (12.3 m). The other wing tip variation, used by several Spitfire variants, was the "clipped" wing; the standard wing tips were replaced by wooden fairings which reduced the span to 32 ft 6 in (9.9 m) The wing tips used spruce formers for most of the internal structure with a light alloy skin attached using brass screws.
The airflow through the main radiator was controlled by pneumatic exit flaps. In early marks of Spitfire (Mk I to Mk VI) the single flap was operated manually using a lever to the left of the pilot's seat. When the two-stage Merlin was introduced in the Spitfire Mk IX the radiators were split to make room for an intercooler radiator; the radiator under the starboard wing was halved in size and the intercooler radiator housed alongside. Under the port wing a new radiator fairing housed a square oil cooler alongside of the other half-radiator unit. The two radiator flaps were now operated automatically via a thermostat.
The light alloy split flaps at the trailing edge of the wing were also pneumatically operated via a finger lever on the instrument panel. Only two positions were available; fully up or fully down (85°). The flaps were normally lowered only during the final approach and for landing, and the pilot was to retract them before taxiing.
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.
The new wing of the Spitfire F Mk 21 and its successors was designed to help alleviate this problem; the wing's stiffness was increased by 47%, and a new design of aileron using piano hinges and geared trim tabs meant that the theoretical aileron reversal speed was increased to . Alongside of the redesigned wing Supermarine also experimented with the original wing, raising the leading edge by one inch (2.54 cm), with the hope of improving pilot view and reducing drag. This wing was tested on a modified F Mk 21, also called the F Mk 23, (sometimes referred to as "Valiant" rather than "Spitfire"). The increase in performance was minimal and this experiment was abandoned.
Supermarine developed a new laminar flow wing based on new aerofoil profiles developed by NACA in the United States, with the objective of reducing drag and improving performance. These laminar flow airfoils were the Supermarine 371-I used at the root and the 371-II used at the tip. Supermarine estimated that the new wing could give an increase in speed of 55 mph (89 km/h) over the Spitfire Mk 21. The new wing was initially fitted to a Spitfire Mk XIV; later a new fuselage was designed, with the new fighter becoming the Supermarine Spiteful.
In June 1939, a single Spitfire was fitted with a single drum-fed Hispano in each wing, an installation that required large blisters on the wing to cover the 60-round drum. The cannons suffered frequent stoppages, mostly because the guns were mounted on their sides to fit as much of the magazine as possible within the wing. In January 1940, P/O George Proudman flew this prototype in combat, but the starboard gun stopped after firing a single round, while the port gun fired 30 rounds before seizing. If one cannon seized, the recoil of the other threw the aircraft off aim. Nevertheless, 30 more cannon-armed Spitfires were ordered for operational trials, and they were soon known as the Mk IB, to distinguish them from the Browning-armed Mk IA, and were delivered to No. 19 Squadron beginning in June 1940. The Hispanos were found to be so unreliable that the squadron requested an exchange of its aircraft with the older Browning-armed aircraft of an operational training unit. By August, Supermarine had perfected a more reliable installation with an improved feed mechanism and four .303s in the outer wing panels. The modified fighters were then delivered to 19 Squadron.
The final cost of the first 310 aircraft, after delays and increased programme costs, came to £1,870,242 or £1,533 more per aircraft than originally estimated. Production aircraft cost about £9,500. The most expensive components were the hand-fabricated and finished fuselage at approximately £2,500, then the Rolls-Royce Merlin engine at £2,000, followed by the wings at £1,800 a pair, guns and undercarriage, both at £800 each, and the propeller at £350.
Under the plan, on 12 July 1938, the Air Ministry bought a site consisting of farm fields and a sewage works next to Castle Bromwich Aerodrome in the West Midlands. This shadow factory would supplement Supermarine's original factories in Southampton in building the Spitfire. The Castle Bromwich Aircraft Factory ordered the most modern machine tools then available, which were being installed two months after work started on the site. Although Morris Motors under Lord Nuffield (an expert in mass motor-vehicle construction) at first managed and equipped the factory, it was funded by government money. When the project was first mooted it was estimated that the factory would be built for £2,000,000, however, by the beginning of 1939 this cost had doubled to over £4,000,000. The Spitfire's stressed-skin construction required precision engineering skills and techniques outside the experience of the local labour force, which took some time to train. However, even as the first Spitfires were being built in June 1940 the factory was still incomplete, and there were numerous problems with the factory management, which ignored tooling and drawings provided by Supermarine in favour of tools and drawings of its own designs, and with the workforce which, while not completely stopping production, continually threatened strikes or "slow downs" until their demands for higher than average pay rates were met.
By May 1940, Castle Bromwich had not yet built its first Spitfire, in spite of promises that the factory would be producing 60 per week starting in April. Beaverbrook immediately sent in experienced management staff and experienced workers from Supermarine and gave over control of the factory to Vickers-Armstrong. Although it would take some time to resolve the problems, in June 1940, 10 Mk IIs were built; 23 rolled out in July, 37 in August, and 56 in September. By the time production ended at Castle Bromwich in June 1945, a total of 12,129 Spitfires (921 Mk IIs, 4,489 Mk Vs, 5,665 Mk IXs, and 1,054 Mk XVIs) had been built.
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 1940. Over the next month, other raids were mounted until, on 26 September 1940, both factories were completely wrecked, with 92 people being killed and a large number injured; most of the casualties were experienced aircraft production workers.
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 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 hangar where many prototype and experimental Spitfires were assembled but having no associated aerodrome no Spitfires ever flew from Hursley.
Four towns and their satellite airfields were chosen to be the focal points for these workshops:
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.
Henshaw wrote about flight testing Spitfires:
After a thorough pre-flight check I would take off and, once at circuit height, I would trim the aircraft and try to get her to fly straight and level with hands off the stick ... Once the trim was satisfactory I would take the Spitfire up in a full-throttle climb at 2,850 rpm to the rated altitude of one or both supercharger blowers. Then I would make a careful check of the power output from the engine, calibrated for height and temperature ... If all appeared satisfactory I would then put her into a dive at full power and 3,000 rpm, and trim her to fly hands and feet off at 460 mph IAS (Indicated Air Speed). Personally, I never cleared a Spitfire unless I had carried out a few aerobatic tests to determine how good or bad she was. The production test was usually quite a brisk affair: the initial circuit lasted less than ten minutes and the main flight took between twenty and thirty minutes. Then the aircraft received a final once-over by our ground mechanics, any faults were rectified and the Spitfire was ready for collection. I loved the Spitfire in all of her many versions. But I have to admit that the later marks, although they were faster than the earlier ones, were also much heavier and so did not handle so well. You did not have such positive control over them. One test of manoeuvrability was to throw her into a flick-roll and see how many times she rolled. With the Mark II or the Mark V one got two-and-a-half flick-rolls but the Mark IX was heavier and you got only one-and-a-half. With the later and still heavier versions, one got even less. The essence of aircraft design is compromise, and an improvement at one end of the performance envelope is rarely achieved without a deterioration somewhere else.
When the last Spitfire rolled out in February 1948, a total of 20,351 examples of all variants had been 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 continuous production before, during and after the Second World War. Although the key aim of Fighter Command was to stop the ''Luftwaffe's'' bombers, in practice the tactic was to use Spitfires to counter German escort fighters, particularly the Bf 109s, while the Hurricane squadrons attacked the bombers.
Well-known Spitfire pilots included J E "Johnnie" Johnson (34 enemy aircraft shot down), who flew the Spitfire right through his operational career from late 1940 to 1945. Douglas Bader (20 e/a) and R S "Bob" Tuck (27 e/a) flew Spitfires and Hurricanes during the major air battles of 1940, and both were shot down and became POWs while flying Spitfires over France in 1941 and 1942. Some notable Commonwealth pilots were George Beurling (31 a/e) from Canada, A G "Sailor" Malan (27 e/a) from South Africa, New Zealanders Alan Deere (17 e/a) and C F Gray (27 e/a) and the Australian Hugo Armstrong (12 e/a).
The Spitfire continued to play increasingly diverse roles throughout the Second World War and beyond, often in air forces other than the RAF. The Spitfire, for example, became the first high-speed photo-reconnaissance aircraft to be operated by the RAF. Sometimes unarmed, they flew at high, medium and low altitudes, often ranging far into enemy territory to closely observe the Axis powers and provide an almost continual flow of valuable intelligence information throughout the war. In 1941 and 1942, PRU Spitfires provided the first photographs of the ''Freya'' and ''Würzburg'' radar systems and, in 1943, helped 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. On 7 March 1942, 15 Mk Vs carrying 90-gallon fuel tanks under their bellies took off from the off the coast of Algeria on a 600-mile flight to Malta. Those Spitfires V were the first to see service outside Britain. Over the Northern Territory of Australia, RAAF Spitfires helped defend the port city of Darwin against air attack by the Japanese Naval Air Force. The Spitfire also served on the Eastern Front: approximately a thousand were supplied to the Soviet Air Force. Though some were used at the frontline in 1943, most of them saw service with the ''Protivo-Vozdushnaya Oborona'' (English: "Anti-air Defence Branch").
During WWII, Spitfires were used by the USAAF in the 4th Fighter Squadron until replaced by P-47 Thunderbolts in March 1943.
The Spitfire is listed in the appendix to the novel ''KG 200'' as "known to have been regularly flown by" the German secret operations unit KG 200, which tested, evaluated and sometimes clandestinely operated captured enemy aircraft during World War II.
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° dive. In April 1944, the same aircraft suffered engine failure in another dive while being flown by Squadron Leader Anthony F. Martindale, RAFVR, when the propeller and reduction gear broke off. Martindale successfully glided the Spitfire 20 mi (32 km) back to the airfield and landed safely.
A Spitfire was modified by the RAE for high speed testing of the stabilator (then known as the "flying tail") of the Miles M.52 supersonic research aircraft. RAE test pilot Eric Brown stated that he tested this successfully during October and November 1944, attaining Mach 0.86 in a dive.
On 5 February 1952, a Spitfire 19 of 81 Squadron based at Kai Tek 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 ft (15,240 m) indicated altitude, with a true altitude of 51,550 ft (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 ft (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 0.96), which would have been the highest speed ever reached by a propeller-driven aircraft, but it has been speculated this figure resulted from inherent instrument errors.
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 practical engineering approach to the problems of high-speed flight had paid off.
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, developed 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. More Spitfire Mk Vs were built than any other type, with 6,487 built, followed by the 5,656 Mk IXs. Different wings, featuring a variety of weapons, were fitted to most marks; the A wing used eight .303 in (7.7 mm) machine guns, the B wing had four .303 in (7.7 mm) machine guns and two 20 mm (.79 in) Hispano cannon, and the C or Universal Wing could mount either four 20 mm (.79 in) cannon or two 20 mm (.79 in) and four .303 in (7.7 mm) machine guns. As the war progressed, the C wing became more common. Another armament variation was the E wing which housed two 20 mm (.79 in) cannon and two .50 in (12.7 mm) Browning machine guns.
Supermarine developed a two-seat variant known as the T Mk VIII to be used for training, but none were ordered, and only one example was ever constructed (identified as N32/''G-AIDN'' by Supermarine). In the absence of an official two-seater variant, a number of airframes were crudely converted in the field. These included a 4(SAAF) Squadron 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.
The Seafire, a name derived from Sea Spitfire, was a naval version of the Spitfire specially adapted for operation from aircraft carriers. Although the Spitfire was not designed for the rough-and-tumble of carrier-deck operations, it was considered to be the best available fighter at the time, and went on to serve with distinction. The basic Spitfire design did impose some limitations on the use of the aircraft as a carrier-based fighter; poor visibility over the nose, for example, meant that pilots had to be trained to land with their heads out of the cockpit and looking alongside the port cowling of their Seafire; also, like the Spitfire, the Seafire had a relatively narrow undercarriage track, which meant that it was not ideally suited to deck operations. Early marks of Seafire had relatively few modifications to the standard Spitfire airframe; however cumulative front line experience meant that most of the later versions of the Seafire had strengthened airframes, folding wings, arrestor hooks and other modifications, culminating in the purpose-built Seafire F/FR Mk 47.
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. Performance was greatly increased when later versions of the Seafire were fitted with the Griffon engines. These were too late to see service in the Second World War.
The first Rolls Royce Griffon-engined Mk XII flew on August 1942, and first flew operationally with 41 Squadron in April 1943. This mark could nudge in level flight and climb to an altitude of 33,000 ft (10,000 m) in under nine 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 Mk XVI) were adapted to the fighter-bomber role.
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 final version of the Spitfire, the Mk 24, first flew at South Marston on 13 April 1946. On 20 February 1948, almost twelve years from the prototype's first flight, the last production Spitfire, ''VN496'', left the production line. The Spitfire Mk 24 was used by only one regular RAF unit, with 80 Squadron replacing their Hawker Tempests with F Mk 24s in 1947. 80 Squadron continued its patrol and reconnaissance duties from Wunstorf in Germany as part of the occupation forces, until it relocated to Kai Tak Airport, Hong Kong in July 1949. During the Chinese Civil War, 80 Squadron's main duty was to defend Hong Kong from perceived Communist threats. They kept their Spitfires until 1 April 1954 when the last operational sortie of an RAF Spitfire was flown. Operation Firedog during the Malayan Emergency saw the Spitfire fly over 1,800 operational sorties against the Malaysian communists by Spitfires.
The last operational Spitfire sortie was by a PR Mk 19 Spitfire, ''PS888'' flying from RAF Seletar, in Singapore. Photographer George Yallop took a photo of PS888 in which the ground crew painted the words, "The Last" onto the port engine cowling of the PR Mk 19 after the final flight.
The last non-operational flight of a Spitfire in RAF service, which took place on 9 June 1957, was by a PR Mk 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. The last nation in the Middle East to operate Spitfires was Syria, which kept its F 22s until 1953.
In late 1962, Air Marshal Sir John Nicholls instigated a trial when he resurrected a Spitfire PR Mk 19 to fight against an English Electric Lightning F 3, a supersonic jet-engined 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 PR Mk 19. 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 doctrine at that time.
* (two, ex civilian, test only) | * | * | * | * | * | * | * | * | * | * | * | * | * | ** Union of India | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * |
What may be the most originally restored Spitfire in the world is maintained in airworthy condition at Fantasy of Flight in Polk City, Florida. Over a six-year period in the 1990s, this aircraft was slowly restored by Personal Plane Services in England using almost 90% of its original aircraft skins. Owner Kermit Weeks insisted that the aircraft be restored to as original condition as possible (unheard of in England at the time). Guns, cannons, gun sight and original working radios are all installed.
''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. Some of the footage includes film shot in 1941 of operational Spitfires and pilots of 501 Squadron (code letters SD). Howard spent a long time researching the history of the Spitfire’s development for the film; Mrs. Mitchell and her son Gordon were on the set during much of the production.
Category:Propeller aircraft Category:Low wing aircraft Category:British fighter aircraft 1930-1939 Category:Single-engine aircraft Category:Carrier-based aircraft Category:1938 introductions Spitfire
ar:سوبرمارين سبتفاير ast:Supermarine Spitfire bs:Supermarine Spitfire bg:Спитфайър ca:Spitfire cs:Supermarine Spitfire da:Supermarine Spitfire de:Supermarine Spitfire el:Supermarine Spitfire es:Supermarine Spitfire eo:Supermarine Spitfire fa:سوپرمرین اسپیتفایر fr:Supermarine Spitfire gl:Supermarine Spitfire ko:스피트파이어 hr:Supermarine Spitfire id:Supermarine Spitfire it:Supermarine Spitfire he:ספיטפייר lb:Supermarine Spitfire hu:Supermarine Spitfire ms:Supermarine Spitfire nl:Supermarine Spitfire ja:スーパーマリン スピットファイア no:Supermarine Spitfire nn:Supermarine Spitfire pl:Supermarine Spitfire pt:Supermarine Spitfire ru:Supermarine Spitfire sk:Supermarine Spitfire sl:Supermarine Spitfire sr:Супермарин Спитфајер sh:Spitfire fi:Supermarine Spitfire sv:Supermarine Spitfire tr:Supermarine Spitfire uk:Supermarine Spitfire vec:Supermarine Spitfire vi:Supermarine Spitfire zh:噴火戰鬥機This text is licensed under the Creative Commons CC-BY-SA License. This text was originally published on Wikipedia and was developed by the Wikipedia community.
Coordinates | 29°25′″N98°30′″N |
---|---|
Name | Alan Deere |
Birth date | December 12, 1917 |
Death date | September 21, 1995 |
Birth place | Auckland, New Zealand |
Death place | New Zealand |
Placeofburial coordinates | |
Nickname | Al |
Birth name | Alan Christoper Deere |
Allegiance | British Commonwealth |
Branch | |
Serviceyears | 1937 — 1977 |
Rank | Air Commodore |
Unit | *No. 54 Squadron |
Battles | World War II
|
Awards | *Distinguished Service Order
|
Laterwork | Author }} |
Deere attended St Canices School in Westport before the family moved to Wanganui where the family established a home at 43 Plymouth Street, which allowed Deere to grow up in a semi-rural environment while he attended Marist Brothers' School and Wanganui Technical College. At the age of eight he saw an aircraft fly overhead and sprinted to see it land on a nearby beach. The pilot allowed him to sit in the cockpit and Deere determined to become a pilot.
After a school career dominated by success in sports, representing his school in rugby, cricket and boxing, Deere spent two years as a law clerk. Encouraged by his family doctor to follow his chosen career, Deere persuaded his mother to sign the under 21 application for entry into the Royal Air Force. He passed selection under Wing Commander R A Cochrane in April 1937 and sailed for England on the Rangitane in September, but was admitted to hospital with high blood pressure.
On 9 January 1938 he was granted a short service commission as acting Flying Officer and started initial officer training at RAF Uxbridge. He was selected for the RAF boxing team to tour South Africa, but flight training took priority and he was posted to 6 Flight Training School on 22 January. The aircraft he was to have travelled in crashed at Bulawayo with the loss of all on board.
Deere was promoted to Flying Officer on 28 October, and temporarily posted to No. 74 Squadron RAF on 20 August, before joining No. 54 Squadron RAF in September where he was joined by Colin Gray, who was to become New Zealand's top scoring pilot of World War II. Both squadrons operated Gloster Gladiators, the RAF's last biplane fighter.
On 24 May he added a Bf 110 over Dunkirk and on the 26th claimed two more in the same area.
On 28 May Deere was shot down by a Dornier Do17 he was attacking near Dunkirk. He was knocked unconscious when making a forced landing on a Belgian beach. Rescued by a soldier, Deere made his way on foot to Oost-Dunkerke where his head injuries were dressed. He hitched a ride on a British Army lorry to Dunkirk, and (after receiving some criticism from soldiers about the effectiveness of the RAF’s fighter cover), boarded a boat to Dover from where he took a train back to London, 19 hours after taking off from Hornchurch with his squadron.
Together with Leathart and Allen, Deere was awarded the DFC on 12 June 1940. The medal was presented at Hornchurch by King George VI on 27 June. The Citation read: :"During May 1940, this officer has, in company with his squadron, taken part in numerous offensive patrols over Northern France, and has been engaged in seven combats often against superior numbers of the enemy. In the course of these engagements he has personally shot down five enemy aircraft and assisted in the destruction of others. On one occasion, in company with a second aircraft, he escorted a trainer aircraft to Calais Marck aerodrome, for the purpose of rescuing a squadron commander who had been shot down there. The trainer aircraft was attacked by twelve Messerschmitt 109s whilst taking off at Calais, but Pilot Officer Deere, with the other pilot, immediately attacked, with the result that three enemy aircraft were shot down, and a further three severely damaged. Throughout these engagements this officer has displayed courage and determination in his attacks on the enemy." London Gazette – 14 June 1940.
On 9 July Deere shot down a Bf 109 over the channel, but then collided head on with a Bf 109 of 4 Staffel Jagdgeschwader 51 flown by Oberfeldwebel Johann Illner. The propeller blades of Deere's spitfire "Kiwi" were bent backwards, the engine disabled, and much of the fin and rudder lost. Nevertheless, he managed to glide back to the coast near Manston where his forced landing in a paddock ended against a stone wall.
The colour scheme of this aircraft (P9398, KL-B, named, like all Deere's aircraft, "Kiwi"), was accurately recorded and in consequence it has been a favourite with modellers and manufacturers. The remains of this aircraft have recently been excavated and are to be rebuilt.
After Adlertag (Eagle Day) on 11 August he shot down a Bf 109, two more plus a Bf 110 the next day, and on the 15th added another Bf 109 over the Channel. However he was then trapped in an unequal dogfight with Bf 109s which attempted to block his return to England. Deere made the coast but was forced to bail out at low altitude, and was admitted to Victoria Hospital with minor injuries. He discharged himself the following day. Deere was shot down again on 28 August - this time by a Spitfire - but parachuted to safety. A frustrating combat on the 30th saw him claim a probable Do 17.
The following day the Luftwaffe raided Hornchurch. Deere led a section of three Spitfires which attempted to take off during the raid. A bomb destroyed all three aircraft. Deere's Spitfire was blown on its back, trapping him. Pilot Officer Eric Edsall, though badly injured when his own Spitfire had been destroyed, crawled to Deere’s aircraft and freed him. Seeing Edsall's injuries, Deere then carried his rescuer to the sick bay.
Deere was critical of the lack of training given to new pilots: :"We were desperately short of pilots.[...] We were getting pilots who had not been on Spitfires because there were no conversion units at that time. They came straight to a squadron from their training establishments. Some of them did have a few hours on the Hurricanes, a monoplane experience, but not on the Spitfire. For example, we got two young New Zealanders into my flight. Chatting to them I found they'd been six weeks at sea coming over. They were trained on some very outdated aircraft, I can't remember, out in NZ. One of the pilots had taken them up to see the handling and brief them on the Spitfire. Then they'd go off for one solo flight and circuit, then they were into battle. The answer of course is that they didn't last. Those two lasted two trips and they both finished up in Dover hospital. One was pulled out of the Channel. One landed by parachute."
Such was the toll on men of 54 Squadron that on 3 September, before the peak of the battle, the squadron was withdrawn from 11 group and moved to the northern airfield at Catterick to rest and recover.
A Bar to his DFC was awarded on 6 September 1940. The Citation read: :"Since the outbreak of war this officer has personally destroyed eleven, and probably one other, enemy aircraft, and assisted in the destruction of two more. In addition to the skill and gallantry he has shown in leading his flight, and in many instances his squadron, Flight Lieutenant Deere has displayed conspicuous bravery and determination in pressing home his attacks against superior numbers of enemy aircraft, often pursuing them across the Channel in order to shoot them down. As a leader he shows outstanding dash and determination." London Gazette – 6 September 1940.
130px|thumb|left|Alan Deere, by Cuthbert Orde, 1941On 7 May 1941 he was posted to Ayr as Flight Commander of No. 602 Squadron RAF. On 5 June he suffered engine failure over the North Sea and glided back to another forced landing on the coast, crawling out the small side door after the Spitfire flipped on to its back, destroying the canopy and temporarily trapping him. At the end of July he took over as Squadron commander of 602 Squadron, and on 1 August it moved back to Kenley. On the same day he shot down another Bf 109. On the 10th he was scrambled to investigate a single enemy aircraft flying westwards but could not locate the machine and abandoned the search after being told the aircraft had crashed near Glasgow, so missing the chance to shoot down Rudolf Hess' Bf 110. (See: Rudolf Hess landing for further details.)
In January 1942 he was sent on a lecturing and public relations trip to America teaching American pilots fighter tactics learnt in the Battle of Britain.
Deere returned to action on 1 May, taking command of a Royal Canadian Air Force squadron, No. 403 Squadron RCAF, at North Weald. In August he went on a course at RAF Staff College and was subsequently posted to Headquarters 13 Group on staff duties.
He engineered a return to operations, somewhat unofficially, as a supernumerary with No. 611 Squadron RAF at Biggin Hill. He shot down an Fw 190 soon after, but wrote of his great respect for the type and its pilots.
He was given command of the Kenley fighter wing, but this was changed at the last minute to keep him as Wing Leader at Biggin Hill. While there, Deere was awarded the DSO, the citation reading: "This officer has displayed exceptional qualities of skill, which have played a large part in the successes of formations he has led. His fearlessness, tenacity and unswerving devotion to duty have inspired all with whom he has flown. Wing Commander Deere has destroyed 18 enemy aircraft." London Gazette – 4 June 1943.
Deere led 121 sorties during his six months as Wing Leader, and added another four claims to his total.
Alan Deere was promoted to Wing Commander on 1 July 1951, and became Commanding Officer of RAF North Weald the following year. In 1955 he was on the directing staff of the RAF Staff College. He was promoted to Group Captain on 1 January 1958. He was Aide-de-camp to the Queen in 1962, and was appointed Assistant Commandant of the RAF College at RAF Cranwell in 1963. Promoted to Air Commodore on 1 July 1964, Deere took command of (East Anglian) Sector.
On 30 January 1965 he was given the signal honour of leading fellow Battle of Britain fighter pilots in the main funeral cortege for Winston Churchill. In 1966 he commanded No. 1 School of Technical Training at RAF Halton. He was consulted for the movie ''Battle of Britain''.
Alan Deere retired from the Royal Air Force on 12 December 1967. He then took up the civilian position of Director of RAF Rugby, which subsequently was expanded to Director RAF Sport. During this period he was Chairman of the RAF Rugby Board and a member of the Combined Services Rugby Team selection panel. A team selected while he was on the panel played the New Zealand All Blacks at Twickenham. He eventually retired to the village of Wendover, near Halton.
He died on 21 September 1995 aged 77 years from cancer, a disease which also claimed his grandfather and four of brothers. His ashes were scattered over the River Thames from a Spitfire of the Battle of Britain Memorial Flight.
Deere was the third of six sons, Pat, Brian, Leslie (known as Jimmy), Kevin and Des. Four of his brothers served in the armed forces during the Second World War.
Brian Deere's son, Brenden Deere between 2001 and 2009 restored back to flying status Spitfire Mark IX PV270. This aircraft is painted in his uncle's markings when he was Wing Commander Flying at Biggin Hill in June 1943.
Category:1917 births Category:1995 deaths Category:Royal New Zealand Air Force personnel Category:New Zealand World War II flying aces Category:New Zealand World War II pilots Category:Recipients of the Distinguished Flying Cross (United States) Category:Companions of the Distinguished Service Order Category:Officers of the Order of the British Empire Category:Royal Air Force officers Category:People from the West Coast Region Category:People from Whanganui Category:The Few Category:Recipients of the Distinguished Flying Cross and Bar (United Kingdom)
he:אלן דיר ja:アラン・クリストファー・ディーアThis text is licensed under the Creative Commons CC-BY-SA License. This text was originally published on Wikipedia and was developed by the Wikipedia community.
The World News (WN) Network, has created this privacy statement in order to demonstrate our firm commitment to user privacy. The following discloses our information gathering and dissemination practices for wn.com, as well as e-mail newsletters.
We do not collect personally identifiable information about you, except when you provide it to us. For example, if you submit an inquiry to us or sign up for our newsletter, you may be asked to provide certain information such as your contact details (name, e-mail address, mailing address, etc.).
When you submit your personally identifiable information through wn.com, you are giving your consent to the collection, use and disclosure of your personal information as set forth in this Privacy Policy. If you would prefer that we not collect any personally identifiable information from you, please do not provide us with any such information. We will not sell or rent your personally identifiable information to third parties without your consent, except as otherwise disclosed in this Privacy Policy.
Except as otherwise disclosed in this Privacy Policy, we will use the information you provide us only for the purpose of responding to your inquiry or in connection with the service for which you provided such information. We may forward your contact information and inquiry to our affiliates and other divisions of our company that we feel can best address your inquiry or provide you with the requested service. We may also use the information you provide in aggregate form for internal business purposes, such as generating statistics and developing marketing plans. We may share or transfer such non-personally identifiable information with or to our affiliates, licensees, agents and partners.
We may retain other companies and individuals to perform functions on our behalf. Such third parties may be provided with access to personally identifiable information needed to perform their functions, but may not use such information for any other purpose.
In addition, we may disclose any information, including personally identifiable information, we deem necessary, in our sole discretion, to comply with any applicable law, regulation, legal proceeding or governmental request.
We do not want you to receive unwanted e-mail from us. We try to make it easy to opt-out of any service you have asked to receive. If you sign-up to our e-mail newsletters we do not sell, exchange or give your e-mail address to a third party.
E-mail addresses are collected via the wn.com web site. Users have to physically opt-in to receive the wn.com newsletter and a verification e-mail is sent. wn.com is clearly and conspicuously named at the point of
collection.If you no longer wish to receive our newsletter and promotional communications, you may opt-out of receiving them by following the instructions included in each newsletter or communication or by e-mailing us at michaelw(at)wn.com
The security of your personal information is important to us. We follow generally accepted industry standards to protect the personal information submitted to us, both during registration and once we receive it. No method of transmission over the Internet, or method of electronic storage, is 100 percent secure, however. Therefore, though we strive to use commercially acceptable means to protect your personal information, we cannot guarantee its absolute security.
If we decide to change our e-mail practices, we will post those changes to this privacy statement, the homepage, and other places we think appropriate so that you are aware of what information we collect, how we use it, and under what circumstances, if any, we disclose it.
If we make material changes to our e-mail practices, we will notify you here, by e-mail, and by means of a notice on our home page.
The advertising banners and other forms of advertising appearing on this Web site are sometimes delivered to you, on our behalf, by a third party. In the course of serving advertisements to this site, the third party may place or recognize a unique cookie on your browser. For more information on cookies, you can visit www.cookiecentral.com.
As we continue to develop our business, we might sell certain aspects of our entities or assets. In such transactions, user information, including personally identifiable information, generally is one of the transferred business assets, and by submitting your personal information on Wn.com you agree that your data may be transferred to such parties in these circumstances.