The Avia S-199 is a propeller-driven Messerschmitt Bf 109G -based fighter aircraft built after World War II using the Bf 109G airframe and a Junkers Jumo 211F engine in place of the original and unavailable Daimler-Benz DB 605 engine. It is notable as the first fighter obtained by the Israeli Air Force , and used during the 1948 Arab-Israeli War .
152-776: Constructed in Czechoslovakia, with parts and plans left over from Luftwaffe aircraft production, the aircraft had numerous problems and was generally unpopular with its pilots. Czechoslovak pilots nicknamed it Mezek ("Mule"), while in Israel , it was officially known as the Sakeen ("knife" in Hebrew ). In practice, the aircraft was more often called Messerschmitt or Messer (which also means "knife", in German and Yiddish ). Avia continued building Messerschmitt Bf 109 G-6s after
304-592: A Luftwaffe detachment sent to aid Nationalist forces in the Spanish Civil War , provided the force with a valuable testing ground for new tactics and aircraft. Partially as a result of this combat experience, the Luftwaffe had become one of the most sophisticated, technologically advanced, and battle-experienced air forces in the world when World War II broke out in September 1939. By the summer of 1939,
456-629: A bomber Geschwader was about 80–90 aircraft. The peacetime strength of the Luftwaffe in the spring of 1939 was 370,000 men. After mobilisation in 1939 almost 900,000 men served, and just before Operation Barbarossa in 1941 personnel strength had reached 1.5 million men. The Luftwaffe reached its largest personnel strength during the period November 1943 to June 1944, with almost three million men and women in uniform; 1.7 million of these were male soldiers, 1 million male Wehrmachtsbeamte and civilian employees, and almost 300,000 female and male auxiliaries ( Luftwaffenhelfer ). In October 1944,
608-635: A close match for them. After the Battle of Britain, the Spitfire superseded the Hurricane as the principal aircraft of RAF Fighter Command , and it was used in the European , Mediterranean , Pacific , and South-East Asian theatres. Much loved by its pilots, the Spitfire operated in several roles, including interceptor, photo-reconnaissance, fighter-bomber, and trainer, and it continued to do so until
760-520: A corporative part of Letecké závody, n.p. [Aviation Works, National Corp.], but soon ran out of the 109's Daimler-Benz DB 605 engines after many were destroyed during an explosion at a warehouse in Krásné Březno . The S-199 continued to use the Bf 109G airframe , but with none of the original DB 605 engines available, an alternative power unit had to be sourced. It was decided that the aircraft would use
912-434: 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 10 minutes and the main flight took between 20 and 30 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
1064-498: A jig and the eight horizontal tail formers were riveted to them. A combination of 14 longitudinal stringers and four main longerons attached to the frames 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 , decreasing 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. The skin of
1216-489: A lack of understanding of doctrine and technical issues in aerial warfare which he left to others more competent. The Commander-in-Chief left the organisation and building of the Luftwaffe, after 1936, to Erhard Milch. However Göring, as a part of Hitler's inner circle, provided access to financial resources and materiel for rearming and equipping the Luftwaffe. Another prominent figure in German air power construction this time
1368-483: A large penalty for their fuel injection. When the fuel is fed before the supercharger, as on the Merlin, it evaporates and cools the air by 25°C. This cooling enhances the performance of the supercharger, and increases the power of the engine, with a corresponding increase in aircraft speed, particularly at high altitude." However, the early Merlin engine's lack of fuel injection meant that Spitfires and Hurricanes, unlike
1520-418: A leading role in the buildup of the Luftwaffe in 1933–36, but had little further involvement in the development of the force after 1936, and Milch became the " de facto " minister until 1937. The absence of Göring in planning and production matters was fortunate. Göring had little knowledge of current aviation, had last flown in 1922, and had not kept himself informed of the latest events. Göring also displayed
1672-450: A maximum rate of 320 per month, making CBAF the largest Spitfire factory in the UK and the largest and most successful plant of its type during the 1939–45 conflict. During the Battle of Britain, the Luftwaffe made concerted efforts to destroy the main manufacturing plants at Woolston and Itchen , near Southampton. The first bombing raid, which missed the factories, came on 23 August 1940. Over
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#17327767097071824-530: A monument to the glory of the Junkers Ju 52. It is the aircraft which the Spanish revolution has to thank for its victory." Poor accuracy from level bombers in 1937 led the Luftwaffe to grasp the benefits of dive-bombing. The latter could achieve far better accuracy against tactical ground targets than heavier conventional bombers. Range was not a key criterion for this mission. It was not always feasible for
1976-589: 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, numerous problems 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. In February 1936, the director of Vickers-Armstrongs, Sir Robert MacLean guaranteed production of five aircraft
2128-637: A proper evaluation was made. The Ju 86 was poor while the He 111 showed the most promise. The Spanish Civil War convinced Udet (along with limited output from the German munitions industry) that wastage was not acceptable in munition terms. Udet sought to build dive-bombing into the Junkers Ju 88 and conveyed the same idea, initiated specifically by the OKL for the Heinkel He 177 , approved in early November 1937. In
2280-537: A serviceman (not a pilot) in the Luftstreitkräfte during World War I, and later an experienced pilot with Lufthansa , was a prominent theorist of air power. Knauss promoted the Giulio Douhet theory that air power could win wars alone by destroying enemy industry and breaking enemy morale by "terrorising the population" of major cities. This advocated attacks on civilians. The General Staff blocked
2432-465: A short-range, high-performance interceptor aircraft by R. J. Mitchell , chief designer at Supermarine Aviation Works, which operated as a subsidiary of Vickers-Armstrong from 1928. Mitchell developed the Spitfire's distinctive elliptical wing (designed by Beverley Shenstone ) with innovative sunken rivets to have the thinnest possible cross-section, achieving a potential top speed greater than that of several contemporary fighter aircraft, including
2584-446: A similar fashion to a leaf spring ; 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 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 an acceptable compromise as this reduced
2736-559: A strategic air war (although the British and French were in a much weaker position), and Hitler ordered the Luftwaffe be expanded to five times its earlier size. The OKL badly neglected the need for transport aircraft; even in 1943, transport units were described as Kampfgeschwadern zur besonderen Verwendung (Bomber Units on Special Duties, KGzbV). and only grouping them together into dedicated cargo and personnel transport wings ( Transportgeschwader ) during that year. In March 1938, as
2888-419: A total of 2,360 Spitfires and Seafires, more than 10% of total production. Henshaw wrote about flight testing Spitfires: After a thorough preflight 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
3040-622: A wave of protests from abroad. It has been suggested that the bombing of Guernica was carried out for military tactical reasons, in support of ground operations, but the town was not directly involved in any fighting at that point in time. It was not until 1942 that the Germans started to develop a bombing policy in which civilians were the primary targets, although the Blitz on London and many other British cities involved indiscriminate bombing of civilian areas, 'nuisance raids' which could even involve
3192-563: A week, beginning 15 months after an order was placed. On 3 June 1936, the Air Ministry placed an order for 310 aircraft. Full-scale production of the Spitfire began at Supermarine's facility in Woolston, but the order clearly could not be completed in the 15 months promised. Supermarine was a small company, already busy building Walrus and Stranraer flying boats, and Vickers was busy building Wellington bombers. The initial solution
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#17327767097073344-409: A wing shape from an aircraft designed for an entirely different purpose." The elliptical wing was decided upon quite early on. Aerodynamically it was the best for our purpose because the induced drag 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
3496-467: Is a British single-seat fighter aircraft used by the Royal Air Force and other Allied countries before, during, and after World War II . It was the only British fighter produced continuously throughout the war. The Spitfire remains popular among enthusiasts. Around 70 remain airworthy , and many more are static exhibits in aviation museums throughout the world. The Spitfire was designed as
3648-504: 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
3800-575: The Oberkommando der Luftwaffe organised Nazi human experimentation , and Luftwaffe ground troops committed massacres in Italy, Greece, and Poland. The Imperial German Army Air Service was founded in 1910 with the name Die Fliegertruppen des deutschen Kaiserreiches , most often shortened to Fliegertruppe . It was renamed the Luftstreitkräfte on 8 October 1916. The air war on
3952-635: The Fliegertruppe's initial, 1914–15 era Feldflieger Abteilung observation/reconnaissance air units, each with six two-seater aircraft apiece, had been attached to specific army formations and acted as support. Dive bomber units were considered essential to Truppenführung , attacking enemy headquarters and lines of communications. Luftwaffe "Regulation 10: The Bomber" ( Dienstvorschrift 10: Das Kampfflugzeug ), published in 1934, advocated air superiority and approaches to ground attack tactics without dealing with operational matters. Until 1935,
4104-652: The Anschluss was taking place, Göring ordered Felmy to investigate the prospect of air raids against Britain. Felmy concluded it was not possible until bases in Belgium and the Netherlands were obtained and the Luftwaffe had heavy bombers. It mattered little, as war was avoided by the Munich Agreement, and the need for long-range aircraft did not arise. These failures were not exposed until wartime. In
4256-526: The Blackburn F.3 and Westland F.7/30 and privately funded designs from Gloster. The 224 was an open-cockpit monoplane with bulky gull wings and a large, fixed, spatted undercarriage powered by the 600-horsepower (450 kW), evaporatively cooled Rolls-Royce Goshawk engine. It made its first flight in February 1934. Of the seven designs tendered to F7/30, the Gloster Gladiator biplane
4408-651: The Hawker Hurricane . Mitchell continued to refine the design until his death in 1937, whereupon his colleague Joseph Smith took over as chief designer. Smith oversaw the Spitfire's development through many variants , from the Mk 1 to the Rolls-Royce Griffon-engined Mk 24, using several wing configurations and guns. The original airframe was designed to be powered by a Rolls-Royce Merlin engine producing 1,030 hp (768 kW). It
4560-580: The Junkers Jumo 211F engine and same propeller type, both as fitted to the Heinkel He 111 bomber . However, the results were far from satisfactory and the outcome was an aircraft that displayed some quite alarming handling characteristics. The substitute engine with the propeller lacked the responsiveness of the Daimler-Benz unit and the torque created by the massive paddle-bladed propeller made control very difficult. This, in combination with
4712-486: 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 6° was adopted to give increased lateral stability. A wing feature that contributed greatly to its success was an innovative spar boom design, made up of five square tubes that fitted into each other. As the wing thinned out along its span, the tubes were progressively cut away in
Avia S-199 - Misplaced Pages Continue
4864-686: The Spitfire which also equipped the Egyptian Air Force. The Avias were mostly withheld from service by the end of October, when only six remained operational. The S-199 continued making sporadic sorties until mid-December. Data from The Complete Book of Fighters General characteristics Performance Armament Related development Aircraft of comparable role, configuration, and era Related lists Luftwaffe Albert Kesselring The Luftwaffe ( German pronunciation: [ˈlʊftvafə] )
5016-529: The Western Front received the most attention in the annals of the earliest accounts of military aviation, since it produced aces such as Manfred von Richthofen , Ernst Udet , Oswald Boelcke , and Max Immelmann . After the defeat of Germany, the service was dissolved on 8 May 1920 under the conditions of the Treaty of Versailles, which also mandated the destruction of all German military aircraft. Since
5168-412: The aerodrome , and the installation of the most modern machine tools then available began two months after work started on the site. Although Morris Motors, under Lord Nuffield (an expert in mass motor-vehicle construction), managed and equipped the factory, it was funded by the government. By the beginning of 1939, the factory's original estimated cost of £2,000,000 had more than doubled, and even as
5320-408: 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 wing drop, often leading to a spin. As the wing roots started to stall, the separating air stream started to buffet (vibrate) the aircraft, warning the pilot, allowing even relatively inexperienced pilots to fly it to
5472-548: The racial policy of Nazi Germany did not apply to him. Wilberg remained in the air staff, and under Walther Wever helped draw up the Luftwaffe's principle doctrinal texts, "The Conduct of the Aerial War" and "Regulation 16". The German officer corps was keen to develop strategic bombing capabilities against its enemies. However, economic and geopolitical considerations had to take priority. The German air power theorists continued to develop strategic theories, but emphasis
5624-524: The shadow factory plan , to boost British aircraft production capacity under the leadership of Herbert Austin . He was given the task of building nine new factories, and to supplement the British car-manufacturing industry by either adding to overall capacity or increasing the potential for reorganisation to produce aircraft and their engines. In 1938, construction began on the Castle Bromwich Aircraft Factory (CBAF), next to
5776-647: The 109's narrow-track undercarriage , made landings and takeoffs extremely hazardous. The Daimler-Benz DB 605 engine allowed for a central cannon mount ( Motorkanone in German) that fired through the propeller spinner. As the Jumo 211 did not have provision for this, the S-199 used a version of the Rüstsatz VI modification kit. This consisted of a single MG 151 cannon mounted beneath each wing, but this further impaired
5928-578: The 1926 manual "Directives for the Conduct of the Operational Air War" continued to act as the main guide for German air operations. The manual directed OKL to focus on limited operations (not strategic operations): the protection of specific areas and support of the army in combat. With an effective tactical-operational concept, the German air power theorists needed a strategic doctrine and organisation. Robert Knauss [ de ] ,
6080-614: The 1950s. The Seafire was an aircraft carrier–based adaptation of the Spitfire, used in the Fleet Air Arm from 1942 until the mid-1950s. In 1931, the Air Ministry released specification F7/30 , calling for a modern fighter capable of a flying speed of 250 mph (400 km/h) to replace the Gloster Gauntlet biplane. R. J. Mitchell designed the Supermarine Type 224 to fill this role in competition with
6232-521: The Aerial Air War in 1935, Wever rejected the theory of Douhet and outlined five key points to air strategy: Wever began planning for a strategic bomber force and sought to incorporate strategic bombing into a war strategy. He believed that tactical aircraft should only be used as a step to developing a strategic air force. In May 1934, Wever initiated a seven-year project to develop the so-called " Ural bomber ", which could strike as far as into
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6384-456: The Air Ministry put forward a plan that its production be stopped after the initial order for 310, after which Supermarine would build Bristol Beaufighters . The managements of Supermarine and Vickers were able to convince the Air Ministry that production problems could be overcome, and a further order was placed for 200 Spitfires on 24 March 1938. The two orders covered the K, L, and N prefix serial numbers. The first production Spitfire came off
6536-476: The Bf 110. The Luftwaffe also greatly expanded its aircrew training programmes by 42%, to 63 flying schools. These facilities were moved to eastern Germany, away from possible Allied threats. The number of aircrew reached 4,727, an increase of 31%. However, the rush to complete this rapid expansion scheme resulted in the deaths of 997 personnel and another 700 wounded. 946 aircraft were also destroyed in these accidents. The number of aircrew completing their training
6688-840: The Blitz of 1940–1941, but failed to break British morale, and the RAF shot down German planes by over a two to one ratio. Hitler had already ordered preparations for Operation Barbarossa, the invasion of the Soviet Union. In spring 1941 the Luftwaffe helped its Axis partner, Italy, secure victory in the Balkans Campaign and continued to support Italy or the Italian Social Republic in the Mediterranean, Middle East and African theaters until May 1945. Supermarine Spitfire The Supermarine Spitfire
6840-568: The British Expeditionary Force at Dunkirk despite intense bombing. The BEF escaped to continue the war. During the Battle of Britain in summer 1940, the Luftwaffe inflicted severe damage on Britain's Royal Air Force , but did not achieve the air superiority that Hitler had demanded for the proposed invasion of Britain , which was postponed and then canceled in December 1940. The Luftwaffe ravaged British cities during
6992-720: The Castle Bromwich plant to his ministry. Beaverbrook immediately sent in experienced management staff and workers from Supermarine, and gave control of the factory to Vickers-Armstrongs. Although resolving the problems took time, 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, at
7144-552: The Goshawk led to the adoption of a cooling system which used 100% glycol . The radiators were housed in a new radiator-duct designed by Fredrick Meredith of the Royal Aircraft Establishment (RAE) at Farnborough, Hampshire . This used the cooling air to generate thrust , greatly reducing the net drag produced by the radiators. In turn, the leading-edge structure lost its function as a condenser, but it
7296-654: The He 177A until September 1942. By the summer of 1939, the Luftwaffe had ready for combat nine Jagdgeschwader (fighter wings) mostly equipped with the Messerschmitt Bf 109E , four Zerstörergeschwader (destroyer wings) equipped with the Messerschmitt Bf 110 heavy fighters, 11 Kampfgeschwader (bomber wings) equipped mainly with the Heinkel He 111 and the Dornier Do 17Z, and four Sturzkampfgeschwader (dive bomber wing") primarily armed with
7448-650: The Heinkel and Dornier, which fulfilled the Luftwaffe's requirements for bombers that were faster than 1930s-era fighters, many of which were biplanes or strut-braced monoplanes. Despite the participation of these aircraft (mainly from 1938 onward), it was the venerable Junkers Ju 52 (which soon became the backbone of the Transportgruppen ) that made the main contribution. During the Spanish Civil War Hitler remarked, "Franco ought to erect
7600-567: The Luftwaffe had twenty-eight Geschwader (wings) . The Luftwaffe also operated a paratrooper force known as the Fallschirmjäger . The Luftwaffe proved instrumental in the German victories across Poland and Western Europe in 1939 and 1940. Although the Luftwaffe inflicted severe damage to the RAF 's infrastructure during the Battle of Britain and devastated many British cities during
7752-710: The Luftwaffe. Kesselring also had to contend with Göring appointing "yes men" to positions of importance. Udet realised his limitations, and his failures in the production and development of German aircraft would have serious long term consequences. The failure of the Luftwaffe to progress further towards attaining a strategic bombing force was attributable to several reasons. Many in the Luftwaffe command believed medium bombers to be sufficient power to launch strategic bombing operations against Germany's most likely enemies; France, Czechoslovakia, and Poland. The United Kingdom presented greater problems. General der Flieger Hellmuth Felmy , commander of Luftflotte 2 in 1939,
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#17327767097077904-431: The OKL had hoped. The Luftwaffe rendered invaluable support to the army, mopping up pockets of resistance. Göring was delighted with the performance. Command and control problems occurred, but flexibility and improvisation in both the army and the Luftwaffe solved these problems. The Luftwaffe was to have in place a ground-to-air communication system, which played a vital role in the success of 1940's Fall Gelb . In
8056-628: The RLM would not gamble on developing a heavy bomber which would also take time. Göring remarked, "the Führer will not ask how big the bombers there are, but only how many there are." The premature death of Wever, one of the Luftwaffe's finest officers, left the Luftwaffe without a strategic air force during World War II, which eventually proved fatal to the German war effort. The lack of strategic capability should have been apparent much earlier. The Sudeten Crisis highlighted German unpreparedness to conduct
8208-471: 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. In 1935, the Air Ministry approached Morris Motors Limited to ask how quickly their Cowley plant could be turned to aircraft production. In 1936, this informal request for major manufacturing facilities was replaced by a formal scheme, known as
8360-730: The Second World War. In the mid-1930s, aviation design teams worldwide began developing a new generation of fighter aircraft. The French Dewoitine D.520 and the German Messerschmitt Bf 109 , for example, were designed to take advantage of new techniques of monocoque construction, and the availability of new, high-powered, liquid-cooled, in-line aero engines. They also had refinements such as retractable undercarriages, fully enclosed cockpits, and low-drag, all-metal wings. These advances had been introduced on civil airliners years before, but were slow to be adopted by
8512-556: 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. A purpose-built works, specialising in manufacturing fuselages and installing engines,
8664-793: The Soviet Union, which was also isolated in Europe. A secret training airfield was established at Lipetsk in 1924 and operated for approximately nine years using mostly Dutch and Soviet, but also some German, training aircraft before being closed in 1933. This base was officially known as the 4th squadron of the 40th wing of the Red Army . Hundreds of Luftwaffe pilots and technical personnel visited, studied, and were trained at Soviet Air Force schools in several locations in Central Russia. Roessing, Blume, Fosse, Teetsemann, Heini, Makratzki, Blumendaat, and many other future Luftwaffe aces were trained in
8816-652: The Spanish Civil War. It helped the Falange under Francisco Franco to defeat the Republican forces. Over 20,000 German airmen gained combat experience that would give the Luftwaffe an important advantage going into the Second World War. One infamous operation was the bombing of Guernica in the Basque country . It is commonly assumed this attack was the result of a "terror doctrine" in Luftwaffe doctrine. The raids on Guernica and Madrid caused many civilian casualties and
8968-433: The Spitfire captured the public's imagination as the main RAF fighter, in part because the Spitfire was generally a better fighter aircraft than the Hurricane. Spitfire units had a lower attrition rate and a higher victory-to-loss ratio than Hurricanes, most likely due to the Spitfire's higher performance. During the battle, Spitfires generally engaged Luftwaffe fighters—mainly Messerschmitt Bf 109E –series aircraft, which were
9120-400: The Treaty of Versailles forbade Germany to have an air force, German pilots trained in secret. Initially, civil aviation schools within Germany were used, yet only light trainers could be used in order to maintain the façade that the trainees were going to fly with civil airlines such as Deutsche Luft Hansa . To train its pilots on the latest combat aircraft, Germany solicited the help of
9272-431: The Type 300. On 1 December 1934, the Air Ministry issued contract AM 361140/34, providing £10,000 for the construction of Mitchell's improved Type 300 design. In April 1935 Ralph Sorley spoke to Mitchell about the new specification F10/35 which called for armament of at least six and preferably eight guns while at the same time removing bomb carry requirement and reducing fuel capacity. Mitchell foresaw no problem adding
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#17327767097079424-503: The UK over the North Sea , and Germany did not have any single-engine fighters with the range to accompany them. To carry out the mission of home defence, the design was intended to allow the Spitfire to climb quickly to intercept enemy bombers. The Spitfire's airframe was complex. The streamlined, semi-monocoque , duralumin-skinned fuselage had a number of compound curves built up over a skeleton of 19 formers , also known as frames. These started from frame number one, immediately behind
9576-450: The USSR in joint Soviet-German schools that were set up under the patronage of Ernst August Köstring . The first steps towards the Luftwaffe's formation were undertaken just months after Adolf Hitler came to power. Hermann Göring , a World War I ace, became National Kommissar for aviation with former Luft Hansa director Erhard Milch as his deputy. In April 1933 the Reich Aviation Ministry ( Reichsluftfahrtministerium or RLM)
9728-458: The USSR. Udet realised that the upcoming war with the USSR might cripple Germany. Udet, torn between truth and loyalty, suffered a psychological breakdown and even tried to tell Hitler the truth, but Göring told Hitler that Udet was lying, then took Udet under control by giving him drugs at drinking parties and hunting trips. Udet's drinking and psychological condition became a problem, but Göring used Udet's dependency to manipulate him. Throughout
9880-580: The aircraft's performance. A final hidden danger lay in the gun synchronizer for the cowl-mounted MG 131 machine guns , which did not function as envisaged, leading to some Israeli pilots shooting off their own propellers. Despite these drawbacks, around 550 S-199s were built, including a number of conversion trainers designated CS-199 (armed) and C-210 (unarmed). The first flight took place in March 1947, and production ended in 1949. The last examples were withdrawn from Czechoslovak service (with their National Security Guard) in 1957. Israeli agents negotiated
10032-482: The altered aerodynamics, culminating in those of the Mk 22/24 series, which were 25% larger in area than those of the Mk I. As the Spitfire gained more power and was able to manoeuvre at higher speeds, the possibility that pilots would encounter aileron reversal increased, and the Supermarine design team set about redesigning the wings to counter this. The original wing design had a theoretical aileron reversal speed of 580 mph (500 kn; 930 km/h), which
10184-497: The anti-aircraft units had 600,000 soldiers and 530,000 auxiliaries, including 60,000 male members of the Reichsarbeitsdienst , 50,000 Luftwaffenhelfer (males age 15–17), 80,000 Flakwehrmänner (males above military age) and Flak-V-soldaten (males unfit for military service), and 160,000 female Flakwaffenhelferinnen and RAD-Maiden , as well as 160,000 foreign personnel ( Hiwis ). The Luftwaffe's Condor Legion experimented with new doctrine and aircraft during
10336-472: The army to move heavy artillery over recently captured territory to bombard fortifications or support ground forces, and dive bombers could do the job faster. Dive bombers, often single-engine two-man machines, could achieve better results than larger six or seven-man aircraft, at a tenth of the cost and four times the accuracy. This led to Udet championing the dive bomber, particularly the Junkers Ju 87 . Udet's "love affair" with dive-bombing seriously affected
10488-423: The assembly line in mid-1938 and was flown by Jeffrey Quill on 15 May 1938, almost 24 months after the initial order. 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. A production aircraft cost about £9,500. The most expensive components were the hand-fabricated and finished fuselage at roughly £2,500, then
10640-401: The bending loads on the main-spar during landing. Ahead of the spar, the thick-skinned leading edge of the wing formed a strong and 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. Constant problems with the evaporative system in
10792-413: The case of the Ju 88, 50,000 modifications had to be made. The weight was increased from seven to twelve tons. This resulted in a speed loss of 200 km/h. Udet merely conveyed the OKL's own dive-bombing capability request to Ernst Heinkel concerning the He 177, who vehemently opposed such an idea, which ruined its development as a heavy bomber. Göring was not able to rescind the dive-bombing requirement for
10944-402: The company in the Southampton area. Quill devised the standard testing procedures, which with variations for specific aircraft designs operated from 1938. Alex Henshaw , chief test pilot at Castle Bromwich from 1940, was placed in charge of testing all Spitfires built at that factory. He co-ordinated a team of 25 pilots and assessed all Spitfire developments. Between 1940 and 1946, Henshaw flew
11096-533: The destruction of Allied bombers, the Luftwaffe was overwhelmed by the Allies' superior numbers and improved tactics, and a lack of trained pilots and aviation fuel. In January 1945, during the closing stages of the Battle of the Bulge , the Luftwaffe made a last-ditch effort to win air superiority , and met with failure. With rapidly dwindling supplies of petroleum, oil, and lubricants after this campaign, and as part of
11248-405: 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 (12.24 m). The other wing-tip variation, used by several Spitfire variants, was the "clipped" wing;
11400-568: The entire combined Wehrmacht military forces as a whole, the Luftwaffe ceased to be an effective fighting force. After the defeat of Nazi Germany, the Luftwaffe was disbanded in 1946. During World War II, German pilots claimed roughly 70,000 aerial victories, while over 75,000 Luftwaffe aircraft were destroyed or significantly damaged. Of these, nearly 40,000 were lost entirely. The Luftwaffe had only two commanders-in-chief throughout its history: Reichsmarschall Hermann Göring and later Generalfeldmarschall Robert Ritter von Greim for
11552-522: The entry of Douhet's theory into doctrine, fearing revenge strikes against German civilians and cities. In December 1934, Chief of the Luftwaffe General Staff Walther Wever sought to mold the Luftwaffe's battle doctrine into a strategic plan. At this time, Wever conducted war games (simulated against France) in a bid to establish his theory of a strategic bombing force that would, he thought, prove decisive by winning
11704-513: 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. During the Battle of Britain, pilots found the Spitfire's ailerons 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. The Spitfire had detachable wing tips which were secured by two mounting points at
11856-567: 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, 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
12008-434: The first Spitfires were being built in June 1940, the factory was still incomplete, and suffering from personnel problems. The Spitfire's stressed-skin construction required precision engineering skills and techniques that were beyond the capabilities of the local labour force, and some time was required to retrain them. Difficulties arose with management, who ignored Supermarine's tooling and drawings in favour of their own, and
12160-474: The focal points for these workshops: Southampton's Eastleigh Airport; Salisbury and the High Post and Chattis Hill aerodromes; Trowbridge and RAF Keevil ; and Reading's Henley and Aldermaston aerodromes. Completed Spitfires were delivered to the airfields on Commer " Queen Mary " low-loader trailers, there to be fully assembled, tested, then passed on to the RAF. An experimental factory at Newbury
12312-855: The four Avias were assembled and sent into combat for the first time on 29 May during Operation Pleshet , attacking the Egyptian army between Isdud and the Ad Halom bridge, south of Tel Aviv . A few days later, on 3 June, taking off from Herzliya Airport the type scored the Israeli Air Force's first aerial victories when Modi Alon shot down two Royal Egyptian Air Force C-47s , which had just bombed Tel Aviv. The type proved unreliable and performed poorly in combat. Furthermore, maintenance problems meant that no more than five were typically airworthy at any one time. However, Israeli-operated S-199s did score victories over their opponents, including
12464-428: The four main fuselage longerons to the rest of the airframe. Behind the bulkhead were five U-shaped half-frames which accommodated the fuel tanks and cockpit. The rear fuselage started at the 11th frame, to which the pilot's seat and (later) armour plating were attached, and ended at the 19th, which was mounted at a slight forward angle just forward of the fin. Each of these nine frames was oval, reducing in size towards
12616-477: The fuselage, wings, and tailplane was secured by dome-headed rivets, and in critical areas such as the wing forward of the main spar where an uninterrupted airflow was required, with flush rivets. From February 1943 flush riveting was used on the fuselage, affecting all Spitfire variants. In some areas, such as at the rear of the wing and the lower tailplane skins, the top was riveted and the bottom fixed by brass screws which tapped into strips of spruce bolted to
12768-497: The guns and welcomed the reduction which would reduce weight. A specification for an eight gun fighter, F5/34 had come from a recommendation by Squadron Leader Ralph Sorley of the Operational Requirements section at the Air Ministry. In the redesign the change was made from Vickers machine guns to .303 in (7.7 mm) Brownings) , and the fuel tankage dropped to 75 gallons from 94. On 5 March 1936,
12920-496: The heart of the Soviet Union. In 1935, this design competition led to the Dornier Do 19 and Junkers Ju 89 prototypes, although both were underpowered. In April 1936, Wever issued requirements for the 'Bomber A' design competition: a range of 6,700 kilometres (4,200 mi) with a 900 kilograms (2,000 lb) bomb load. However Wever's vision of a "Ural" bomber was never realised, and his emphasis on strategic aerial operations
13072-468: The history of Nazi Germany, the Luftwaffe had only two commanders-in-chief. The first was Göring, with the second and last being Generalfeldmarschall Robert Ritter von Greim . His appointment as commander-in-chief of the Luftwaffe was concomitant with his promotion to Generalfeldmarschall , the last German officer in World War II to be promoted to the highest rank. Other officers promoted to
13224-650: The iconic Junkers Ju 87B Stuka . The Luftwaffe was just starting to accept the Junkers Ju 88A for service, as it had encountered design difficulties, with only a dozen aircraft of the type considered combat-ready. The Luftwaffe's strength at this time stood at 373,000 personnel (208,000 flying troops, 107,000 in the Flak Corps, and 58,000 in the Signals Corps). Aircraft strength was 4,201 operational aircraft: 1,191 bombers, 361 dive bombers, 788 fighters, 431 heavy fighters, and 488 transports. Despite deficiencies, it
13376-606: The industrial and military effort strategic bombing would require. By 1939 the Luftwaffe was not much better prepared than its enemies to conduct a strategic bombing campaign, with fatal results during the Battle of Britain . The German rearmament programme faced difficulties acquiring raw materials. Germany imported most of its essential materials for rebuilding the Luftwaffe, in particular rubber and aluminum. Petroleum imports were particularly vulnerable to blockade. Germany pushed for synthetic fuel plants but still failed to meet demands. In 1937 Germany imported more fuel than it had at
13528-659: The interwar period, German pilots were trained secretly in violation of the treaty at Lipetsk Air Base in the Soviet Union . With the rise of the Nazi Party and the repudiation of the Versailles Treaty, the Luftwaffe's existence was publicly acknowledged and officially established on 26 February 1935, just over two weeks before open defiance of the Versailles Treaty through German rearmament and conscription would be announced on 16 March. The Condor Legion ,
13680-503: The last two weeks of the war. The Luftwaffe was deeply involved in Nazi war crimes . By the end of the war, a significant percentage of aircraft production originated in concentration camps , an industry employing tens of thousands of prisoners. The Luftwaffe's demand for labour was one of the factors that led to the deportation and murder of hundreds of thousands of Hungarian Jews in 1944. The Luftwaffe frequently bombed non-military targets,
13832-646: The later marks, although they were faster than the earlier ones, were also much heavier, 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
13984-622: 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 complex wing design, especially the precision required to manufacture the vital spar and leading-edge structures, caused some major delays in the production of the Spitfire at first. 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 production
14136-399: The long-term development of the Luftwaffe, especially after Wever's death. The tactical strike aircraft programmes were meant to serve as interim solutions until the next generation of aircraft arrived. In 1936 the Junkers Ju 52 was the backbone of the German bomber fleet. This led to a rush on the part of the RLM to produce the Junkers Ju 86 , the Heinkel He 111, and the Dornier Do 17 before
14288-466: The lower ribs. The removable wing tips were made up of duralumin-skinned spruce formers. At first, the ailerons, elevators, and rudder were fabric-covered, but once combat experience showed that fabric-covered ailerons were impossible to use at high speeds a light alloy replaced the fabric, 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;
14440-523: The machine-gunning of civilians and livestock. When World War II began in 1939, the Luftwaffe was one of the most technologically advanced air forces in the world. During the Polish Campaign that triggered the war, it quickly established air superiority, and then air supremacy. It supported the German Army operations which ended the campaign in five weeks. The Luftwaffe's performance was as
14592-481: The main spar, preventing the wings from twisting. Mitchell has sometimes been accused of copying the wing shape of the Günter brothers -designed Heinkel He 70 , which first flew in 1932, but as Beverley Shenstone , the aerodynamicist on Mitchell's team, 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
14744-499: The meantime, German designs of mid-1930s origin such as the Messerschmitt Bf 109 , the Heinkel He 111 , the Junkers Ju 87 Stuka, and the Dornier Do 17 , performed very well. All first saw active service in the Condor Legion against Soviet-supplied aircraft. The Luftwaffe also quickly realised the days of the biplane fighter were finished, the Heinkel He 51 being switched to service as a trainer. Particularly impressive were
14896-457: The military, who favoured the biplane's simplicity and manoeuvrability. Mitchell's design aims were to create a well-balanced, high-performance fighter aircraft capable of fully exploiting the power of the Merlin engine, while being relatively easy to fly. At the time, with France as an ally , and Germany thought to be the most likely future opponent, no enemy fighters were expected to appear over Great Britain. German bombers would have to fly to
15048-403: 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. The wing section used was from
15200-562: The new wing could give an increase in speed of 55 mph (48 kn; 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 . The Rolls Royce engine's designers deliberately chose a carburettor for the Merlin engine: Sir Stanley Hooker explained in his autobiography that "the Germans paid
15352-439: The next month, other raids were mounted, until, on 26 September 1940, both factories were destroyed, with 92 people 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
15504-464: The practice of " terror bombing " (see Luftwaffe strategic bombing doctrine ). According to Corum, terror bombing was deemed to be "counter-productive", increasing rather than destroying the enemy's will to resist. Such bombing campaigns were regarded as diversion from the Luftwaffe's main operations; destruction of the enemy armed forces. Nevertheless, Wever recognised the importance of strategic bombing . In newly introduced doctrine, The Conduct of
15656-399: The propeller unit, to the tail unit attachment frame. The first four frames supported the glycol header tank and engine cowlings. Frame five, to which the engine bearers were secured, supported the weight of the engine and its accessories. This was a strengthened double frame which also incorporated the fireproof bulkhead, and in later versions of the Spitfire, the oil tank. This frame also tied
15808-485: The prototype ( K5054 ) , fitted with a fine-pitch propeller to give more power for takeoff, 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, who is quoted as saying, "don't touch anything" on landing. This eight-minute flight came four months after the maiden flight of the contemporary Hurricane. K5054
15960-514: The prototype for the RAF. He had been given orders to fly the aircraft and then to make his report to the Air Ministry on landing. Edwardes-Jones' report was positive; 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, at a cost of £ 1,395,000. before the A&;AEE had issued any formal report. Interim reports were later issued on
16112-522: The purchase of Avia S-199s from the Czechoslovak government in defiance of an arms embargo that Israel faced at the time. Twenty-five aircraft were obtained and all but two were eventually delivered. The price for a fully equipped plane was $ 190,000. The first four examples arrived on 20 May 1948, six days after Israel's declaration of independence and five days after the commencement of hostilities by Egypt . Forming Israel's first fighter squadron ,
16264-404: 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 by a thermostat . Another wing feature was its washout . The trailing edge of the wing twisted slightly upward along its span,
16416-656: The rank of Oberstleutnant or, exceptionally, an Oberst . Even a Leutnant (second lieutenant) could find himself commanding a Staffel . Similarly, a bomber wing was a Kampfgeschwader (KG), a night fighter wing was a Nachtjagdgeschwader (NJG), a dive bomber wing was a Stukageschwader (StG), and units equivalent to those in RAF Coastal Command, with specific responsibilities for coastal patrols and search and rescue duties, were Küstenfliegergruppen (Kü.Fl. Gr.). Specialist bomber groups were known as Kampfgruppen (KGr). The strength of
16568-432: 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 (740 km/h) IAS (Indicated Air Speed). Personally, I never cleared a Spitfire unless I had carried out
16720-417: The requirement from its inception on 5 November 1937 to have moderate dive-bombing capabilities in a 30-meter wingspan aircraft. Moreover, Germany did not possess the economic resources to match the later British and American effort of 1943–1944, particularly in large-scale mass production of high power output aircraft engines (with output of over least 1,500 kW (2,000 hp). In addition, the OKL had not foreseen
16872-568: The second highest military rank in Germany were Kesselring, Hugo Sperrle , Milch, and Wolfram von Richthofen . At the end of the war, with Berlin surrounded by the Red Army , Göring suggested to Hitler that he take over leadership of the Reich. Hitler ordered his arrest and execution, but Göring's SS guards did not carry out the order, and Göring survived to be tried at Nuremberg . Sperrle
17024-522: The spring of 1940 the Luftwaffe assisted the Kriegsmarine and Heer in the invasion of Norway . Flying in reinforcements and winning air superiority, the Luftwaffe contributed decisively to the German conquest. In May and June 1940, the Luftwaffe contributed to the unexpected German success in the Battle of France . It destroyed three Allied Air Forces and helped secure the defeat of France in just over six weeks. However, it could not destroy
17176-488: The standard wing tips were replaced by wooden fairings which reduced the span by 3 ft 6 in (1.07 m). The wing tips used spruce formers for most of the internal structure with a light alloy skin attached using brass screws. 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°). Flaps were normally lowered only during
17328-531: The start of the decade. By summer 1938, only 25% of the requirements could be covered. In steel materials, industry was operating at barely 83% of capacity, and by November 1938 Göring reported the economic situation was serious. The Oberkommando der Wehrmacht (OKW), the overall command for all German military forces, ordered reductions in raw materials and steel used for armament production. The figures for reduction were substantial: 30% steel, 20% copper, 47% aluminum, and 14% rubber. Under such circumstances, it
17480-541: The subsequent Blitz , it failed to force the British into submission. From 1942, Allied bombing campaigns gradually destroyed the Luftwaffe's fighter arm. From late 1942, the Luftwaffe used its surplus ground support and other personnel to raise Luftwaffe Field Divisions . In addition to its service on the Western front , the Luftwaffe operated over the Soviet Union, North Africa, and Southern Europe. Despite its belated use of advanced turbojet and rocket-propelled aircraft for
17632-430: The tail, and incorporated several lightening holes to reduce their weight 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
17784-452: The theoretical aileron reversal speed was increased to 825 mph (717 kn; 1,328 km/h). Alongside the redesigned wing, Supermarine also experimented with the original wing, raising the leading edge by 1 inch (25 mm), 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
17936-556: 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, two-bladed, wooden propeller allowed the Spitfire to reach 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
18088-582: The training aircraft and schools in their operational areas. A Geschwader was commanded by a Geschwaderkommodore , with the rank of either major, Oberstleutnant ( lieutenant colonel ) or Oberst ( colonel ). Other "staff" officers within the unit with administrative duties included the adjutant, technical officer, and operations officer, who were usually (though not always) experienced aircrew or pilots still flying on operations. Other specialist staff were navigation, signals, and intelligence personnel. A Stabschwarm (headquarters flight )
18240-446: The untimely death of Wever in early June 1936 in an aviation-related accident , by the late 1930s the Luftwaffe had no clear purpose. The air force was not subordinated to the army support role, and it was not given any particular strategic mission. German doctrine fell between the two concepts. The Luftwaffe was to be an organisation capable of carrying out broad and general support tasks rather than any specific mission. Mainly, this path
18392-471: The war through the destruction of enemy industry, even though these exercises also included tactical strikes against enemy ground forces and communications. In 1935, "Luftwaffe Regulation 16: The Conduct of the Air War" was drawn up. In the proposal, it concluded, "The mission of the Luftwaffe is to serve these goals." Historian James Corum states that under this doctrine, the Luftwaffe leadership rejected
18544-661: The war under the Avia S-99 name, at two aircraft factories in Czechoslovakia . One of them was officially called závod Avia ( Avia Plant) (1946–48) and závod Avia-Jiřího Dimitrova (Avia-George Dimitroff-Plant, 1948–49) in Čakovice near Prague, as a postwar corporative part of the Automobilové závody, n.p. [Automotive Works, National Corp.]. The other was named závod Vysočany (Vysočany Plant, 1948–49) in Prague, as
18696-405: The wing needed to be thin to avoid creating too much drag , but it had to be thick enough to house the retractable undercarriage, armament, and ammunition. An elliptical planform is the most efficient aerodynamic shape for an untwisted wing, leading to the lowest amount of induced drag . The ellipse was skewed so that the centre of pressure, which occurs at the quarter- chord position, aligned with
18848-454: The workforce continually threatened strikes or "slow downs" until their demands for higher wages were met. In spite of promises that the factory would be producing 60 per week starting in April, by May 1940, Castle Bromwich had not yet built its first Spitfire. On 17 May, Minister of Aircraft Production Lord Beaverbrook telephoned Lord Nuffield and manoeuvred him into handing over control of
19000-522: Was Helmuth Wilberg . Wilberg later played a large role in the development of German air doctrine. Having headed the Reichswehr air staff for eight years in the 1920s, Wilberg had considerable experience and was ideal for a senior staff position. Göring considered making Wilberg Chief of Staff (CS). However, it was revealed Wilberg had a Jewish mother. For that reason, Göring could not have him as CS. Not wishing his talent to go to waste, Göring ensured
19152-528: Was JG 1, its first Gruppe (group) was I./JG 1, using a Roman numeral for the Gruppe number only, and its first Staffel (squadron) was 1./JG 1. Geschwader strength was usually 120–125 aircraft. Each Gruppe was commanded by a Kommandeur , and a Staffel by a Staffelkapitän . However, these were "appointments", not ranks, within the Luftwaffe. Usually, the Kommodore would hold
19304-481: Was accepted for service. 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. This led to the Type 300, with retractable undercarriage and a wingspan reduced by 6 ft (1.8 m). This design was submitted to the Air Ministry in July 1934, but
19456-489: Was an impressive force. However, even by the spring of 1940, the Luftwaffe still had not mobilised fully. Despite the shortage of raw materials, Udet had increased production through introducing a 10-hour working day for aviation industries and rationalising production. During this period 30 Kampfstaffeln and 16 Jagdstaffeln were raised and equipped. A further five Zerstörergruppen ("Destroyer groups") were created (JGr 101, 102, 126, 152 and 176), all equipped with
19608-566: Was attached to each Geschwader . A Jagdgeschwader (hunting wing) (JG) was a single-seat day fighter Geschwader , typically equipped with Bf 109 or Fw 190 aircraft flying in the fighter or fighter-bomber roles. Late in the war, by 1944–45, JG 7 and JG 400 (and the jet specialist JV 44 ) flew much more advanced aircraft, with JG 1 working up with the Heinkel He 162 "emergency fighter" at war's end. A Geschwader consisted of groups ( Gruppen ), which in turn consisted of Jagdstaffel (fighter squadrons). Hence, Fighter Wing 1
19760-466: Was built at Star Road, Caversham in Reading. The drawing office in which all Spitfire designs were drafted was moved to Hursley Park , near Winchester . This site also had an aircraft assembly hangar where many prototype and experimental Spitfires were assembled, but since it had no associated aerodrome, no Spitfires ever flew from Hursley. Four towns and their satellite airfields were chosen to be
19912-580: Was charged with devising a plan for an air war over the British Isles. Felmy was convinced that Britain could be defeated through morale bombing. Felmy noted the alleged panic that had broken out in London during the Munich crisis , evidence he believed of British weakness. A second reason was technical. German designers had never solved the issues of the Heinkel He 177A's design difficulties, brought on by
20064-453: Was chosen to encourage more flexible use of air power and offer the ground forces the right conditions for a decisive victory. In fact, on the outbreak of war, only 15% of the Luftwaffe's aircraft were devoted to ground support operations, counter to the long-held myth that the Luftwaffe was designed for only tactical and operational missions. Wever's participation in the construction of the Luftwaffe came to an abrupt end on 3 June 1936 when he
20216-594: Was created in 1940 to direct operations in Norway and Denmark, and other Luftflotten were created as necessary. Each Luftflotte would contain several Fliegerkorps (Air Corps), Fliegerdivision (Air Division), Jagdkorps (Fighter Corps), Jagddivision (Air Division), or Jagdfliegerführer (Fighter Air Command). Each formations would have attached to it a number of units, usually several Geschwader , but also independent Staffeln and Kampfgruppen . Luftflotten were also responsible for
20368-584: Was established. The RLM was in charge of the development and production of aircraft. Göring's control over all aspects of aviation became absolute. On 25 March 1933 the German Air Sports Association absorbed all private and national organisations, while retaining its 'sports' title. On 15 May 1933, all military aviation organisations in the RLM were merged, forming the Luftwaffe; its official 'birthday'. The National Socialist Flyers Corps ( Nationalsozialistisches Fliegerkorps or NSFK)
20520-414: 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 capable aircraft, but not perfect. The rudder was oversensitive, and
20672-704: Was formed in 1937 to give pre-military flying training to male youths, and to engage adult sport aviators in the Nazi movement. Military-age members of the NSFK were drafted into the Luftwaffe. As all such prior NSFK members were also Nazi Party members, this gave the new Luftwaffe a strong Nazi ideological base in contrast to the other branches of the Wehrmacht (the Heer (army) and the Kriegsmarine (navy)). Göring played
20824-412: Was given to army support, as Germany was a continental power and expected to face ground operations following any declaration of hostilities. For these reasons, between 1933 and 1934, the Luftwaffe's leadership was primarily concerned with tactical and operational methods. In aerial terms, the army concept of Truppenführung was an operational concept, as well as a tactical doctrine. In World War I,
20976-437: Was killed along with his engineer in a Heinkel He 70 Blitz, ironically on the very day that his "Bomber A" heavy bomber design competition was announced. After Wever's death, Göring began taking more of an interest in the appointment of Luftwaffe staff officers. Göring appointed his successor Albert Kesselring as Chief of Staff and Ernst Udet to head the Reich's Air Ministry Technical Office ( Technisches Amt ), although he
21128-526: Was later adapted to house integral fuel tanks of various sizes — a feature patented by Vickers-Supermarine in 1938. The airflow through the main radiator was controlled by pneumatic exit flaps. In early marks of the 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;
21280-462: Was lost. The only design submittal for Wever's 'Bomber A' that reached production was Heinkel 's Projekt 1041 , which culminated in the production and frontline service as Germany's only operational heavy bomber, the Heinkel He 177 , on 5 November 1937, the date on which it received its RLM airframe number . In 1935, the military functions of the RLM were grouped into the Oberkommando der Luftwaffe (OKL; "Air Force High Command"). Following
21432-611: Was minimal and this experiment was abandoned. Supermarine developed a new laminar-flow wing based on new aerofoil profiles developed by the National Advisory Committee for Aeronautics 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
21584-484: Was no longer held up by a lack of wings. All the main flight controls were originally metal structures with fabric covering. Designers and pilots felt that having ailerons which required a degree of effort to move at high speed would avoid unintended aileron reversal, throwing the aircraft around and potentially pulling the wings off. Air combat was also felt to take place at relatively low speeds and high-speed manoeuvring would be physically impossible. Flight tests showed
21736-409: Was not a technical expert. Despite this Udet helped change the Luftwaffe's tactical direction towards fast medium bombers to destroy enemy air power in the battle zone rather than through industrial bombing of its aviation production. Kesselring and Udet did not get on. During Kesselring's time as CS, 1936–1937, a power struggle developed between the two as Udet attempted to extend his own power within
21888-422: Was not accepted. It then went through a series of changes, including the incorporation of an enclosed cockpit, oxygen-breathing apparatus, smaller and thinner wings, and the newly developed, more powerful Rolls-Royce PV XII V-12 engine , which was 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
22040-400: Was not possible for Milch, Udet, or Kesselring to produce a formidable strategic bombing force even had they wanted to do so. The development of aircraft was now confined to the production of twin-engined medium bombers that required much less material, manpower, and aviation production capacity than Wever's "Ural Bomber". German industry could build two medium bombers for one heavy bomber and
22192-574: Was prosecuted at the OKW trial , one of the last twelve of the Nuremberg trials after the war. He was acquitted on all four counts. He died in Munich in 1953. At the start of the war the Luftwaffe had four Luftflotten (air fleets), each responsible for roughly a quarter of Germany. As the war progressed more air fleets were created as the areas under German rule expanded. As one example, Luftflotte 5
22344-451: Was somewhat lower than that of some contemporary fighters. The Royal Aircraft Establishment noted that, at 400 mph (350 kn; 640 km/h) indicated airspeed , roughly 65% of aileron effectiveness was lost due to wing twist. The new wing of the Spitfire F Mk 21 and its successors was designed to help alleviate this problem. Its stiffness was increased by 47%, and a new aileron design using piano hinges and geared trim tabs meant
22496-463: Was strong enough and adaptable enough to use increasingly powerful Merlins, and in later marks, Rolls-Royce Griffon engines producing up to 2,340 hp (1,745 kW). As a result, the Spitfire's performance and capabilities improved over the course of its service life. During the Battle of Britain (July–October 1940), the more numerous Hurricane flew more sorties resisting the Luftwaffe , but
22648-706: Was the aerial-warfare branch of the Wehrmacht before and during World War II . Germany 's military air arms during World War I , the Luftstreitkräfte of the Imperial Army and the Marine-Fliegerabteilung of the Imperial Navy , had been disbanded in May 1920 in accordance with the terms of the 1919 Treaty of Versailles , which banned Germany from having any air force. During
22800-445: Was the subject of a Luftwaffe daylight raid, but the bombs missed their target and hit a nearby school. All production aircraft were flight tested before delivery. During the Second World War, Jeffrey Quill was Vickers Supermarine's chief test pilot, in charge of flight testing all aircraft types built by Vickers Supermarine. He oversaw a group of 10 to 12 pilots responsible for testing all developmental and production Spitfires built by
22952-419: Was to subcontract the work. Although outside contractors were supposed to be involved in manufacturing many important Spitfire components, especially the wings, Vickers-Armstrongs (the parent company) was reluctant to see the Spitfire being manufactured by outside concerns, and was slow to release the necessary blueprints and subcomponents. As a result of the delays in getting the Spitfire into full production,
23104-540: Was up to 3,941, The Luftwaffe's entire strength was now 2.2 million personnel. In April and May 1941, Udet headed the Luftwaffe delegation inspecting the Soviet aviation industry in compliance with the Molotov–Ribbentrop Pact . Udet informed Göring "that Soviet air forces are very strong and technically advanced." Göring decided not to report the facts to Hitler, hoping that a surprise attack would quickly destroy
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