Why did the Spitfire have elliptical wings

The Spitfire was made in England, underwing fighter and fighter-bomber information aircraft. The British airline's first aircraft made entirely of metal. J. Mitchell made the plans for this. The fuselage consists of three parts, one person could fly it. The wings are elliptical in shape, with a main holder. The chassis can be retracted in three places and has a rear wheel. The different types were built with different Rolls-Royce Merlin or Griffon engines.

In 1928 the Vickers Group bought the Supermarine aircraft manufacturer. Reginald J. Mitchell, born in 1895 and the main designer of the Supermarine Company, planned the S-6B, with which he won the Schneider Cup on September 13, 1931 with a seaplane. He developed the Spitfire, a revolutionary new machine design, from this seaplane.

To the one from the Ministry of Aviation under the number F.7 / 30. Mitchell also submitted his plans to which he received approval for a prototype in response. In 1933 he was attacked by pneumonia and went on sick leave on the European continent. After speaking to a few air specialists, he was convinced that war was just around the corner. He became obsessed with the idea that his fighter plane would mean a possible outcome of the war.

At the end of 1933 (when the first sample of the Hurricane was already being manufactured in the Hawker Corporation works), although he had not yet received a government order, Mitchell planned the completely new machine and had the first flight tests carried out and in January 1935 the assembly of the Prototypes (Supermarine type 300). It flew for the first time on March 5, 1936. The flight tests ran all year round. The tests were done by J. Mutt Summers and two more entry pilots.

He planned the wings in the thinnest way possible, which was the result of the fact that although 4 machine guns were installed, it was thinner than the Messerschmidt. According to others, Mitchell planned the so characteristic elliptical wing for the Heinkel He 70, which brilliantly crossed the esthetic aerodynamic effectiveness. Only much later, in the age of the supersonic machines, it became clear how much Mitchell had overtaken his own time with this wing design.

The Vickers company suggested the name Spitfire (fire-breathers) for the Ministry of Aviation, and Mitchell said, very ill, that people couldn't expect anything from them but such a stupid name. "

Mitchell saw them many times in his old Rolls-Royce near Eastleigh, and he drove out to the airfield to see his plane fly. He was out of luck because he could no longer experience series production: he died at the age of forty-two in 1937.

The first machines were delivered in August 1938, but only in early 1939 were they taken into use by the 19th Fliegerstaffel.

The Spitfire's first victory (what a fate) was in September 1939 when two British hurricanes were shot down in the Barking Creek Battle. The Spitfire's first real victory came in October 1939: a Heinkel He 111 was shot down.

The initially built-in two-blade, wood-screw Merlin II engine was exchanged for a three-blade Merlin III. The Mk was executed with a 768 kW engine and eight machine guns. With two 20mm machine guns, the Mk IB was and was renamed to the previous Mk IA.

The frame of the Spitfire Mk-21 had to be reinforced because of the four large anti-machine guns. The empty weight of the aircraft had to be increased (3,247.7 kg), almost a third more than the Mk l. They were equipped with powerful Griffon 61 or 85 motors: 5 star or 6 star, counter-rotating propellers. Series production began in 1944 and a total of 122 units were installed.

Further versions: Mk IIA / B; Seafire L Mk IIC; Mk III (egyetlen egy készäne belôle); Seafire Mk III; Mk V; PR Mk III (two pieces); PR Mk IV; PR Mk V; PR Mk VII; HF Mk VI; Mk VII; PR Mk X; Mk VIII; Mk IX; PR Mk XI; PR Mk XIII; Seafire F Mk XV; Mk XVI; Mk XII; Mk XIV; Seafire F Mk 17; Mk XVIII; PR Mk XIX; Mk 22; Mk 24; Seafire F Mk 45; Seafire F Mk 46; Seafire FR Mk 47.

In March 1949, the production of the Spitfire with the FR 47 was stopped. A total of 20351 (according to other information 22890, or 22907) Spitfire and 2408 Seafire were built.

Supermarine SPITFIRE F.Mk 21 Card Model by HMKS
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