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    Tuesday

    Paper model Messerschmitt Me 262


    The Me 262 was the world's first operational jet fighter. It was also the best of its generation, with an advanced aerodynamic design. Its development was much delayed, less by political disagreement than by engines troubles, and the Me 262 arrived too late to influence the end of WWII. Even the series aircraft had extremely unreliable and short-lived engines. The few Me 262 used in combat demonstrated their clear superiority, but were unable achieve much more. Around 1430 built.

    Paper model Messerschmitt Me 262 download here


    Type: Me 262A-1a
    Country: Germany
    Function: fighter
    Year: 1944 Crew: 1
    Engines: 2 * 900kg Junkers Jumo 004B-1
    Wing Span: 12.48 m
    Length: 10.60 m
    Height: 3.84 m
    Wing Area: 21.70 m2
    Empty Weight: 3800 kg
    Max.Weight: 6400 kg
    Speed: 870 km/h
    Ceiling: 11450 m
    Range: 1050 km
    Armament: 4*g30 mm

    Despite inconsistent official interest, German companies were working on combat aircraft based on the new turbojet engines. Following the flight tests of the He-178, in the fall of 1939 Heinkel began serious development of an operational fighter, the "He-280", which was to be powered by twin improved Heinkel engines.


    Even before this, in the fall of 1938, a Messerschmitt design team under Dr. Waldermar Voight had drawn up concepts for a interceptor fighter with twin turbojet engines. The preliminary designs for "Project 1065", as it was designated, went through a iteration or two and finally resulted in a proposal submitted to the RLM in May 1940.


    Messerschmitt's dream fighter had the turbojets mounted in nacelles under the middle of the wings. The wings were slightly swept to ensure proper center of gravity, and had an unusually thin chord, or ratio of thickness to width, for good high-speed performance. As the wing's features for high-speed performance compromised low-speed handling, a "slat" was added to the front of the outer wings. The slat was automatically extended to improve handling at low speeds.


    The fuselage had a triangular cross section and substantial fuel capacity to feed the thirsty engines. The aircraft was a "tailsitter", with fully retractable landing gear. In July 1940, the RLM ordered three prototypes, under the designation "Messerschmitt 262 (Me-262)", to be powered by BMW-003 engines.


    Airframe development far outpaced engine development, and so the first prototype, the "Me-262-V1" ("V" standing for "Versuchs" or "Experimental"), was fitted with a single Jumo-210G piston engine with 710 horsepower and a two-bladed propeller for preliminary test flights. First flight was on 18 April 1941. The RLM was becoming more interested in the aircraft, ordering five more prototypes in July 1941, to follow the initial order for three.


    The Me-262-V1 was finally fitted with a pair of BMW-003 turbojets, each with 550 kilograms (1,200 pounds) thrust, in November 1941. The Jumo 210G piston engine was retained, which was fortunate, since the turbojet engines were hopelessly unreliable. On 25 March 1942, Messerschmitt test pilot Fritz Wendel took off and suffered immediate failures of both engines. He managed to make a go-round on the piston engine and land, damaging the aircraft but suffering no injury himself.


    Development of the BMW-003 engine was progressing slowly, while work on the Junkers Jumo-004 seemed more promising, and so the third prototype, the "Me-262-V3", was fitted with two Jumo-004A pre-production engines with 840 kilograms (1,850 pounds) thrust each. Wendel took the V3 into the air on 18 July 1942 and found the aircraft extremely impressive. Unfortunately, the V3 prototype was wrecked on its second test flight, three weeks later.

    The Me-262V-2 prototype, also powered by Jumo-004As, was not delivered until 2 October 1942. Despite all the delays and problems, the RLM had already ordered 15 preproduction Me-262s in May 1942, and added 30 more to the order in October 1942. The He-280 was clearly inferior in performance and the Me-262 was clearly the better option, but there was still no commitment to put the Me-262 into full production.

    The RLM was waffling between committing to production of the the Me-262 and the "Me-209", an improved version of the piston-powered Messerschmitt Bf-109 fighter. The head of the RLM, Erhard Milch, was conservative and favored the Me-209 over the much more radical Me-262.

    However, in the spring of 1943 the tide began to shift towards the jet fighter. The Luftwaffe General of Fighters, Adolf Galland, flew the recently-delivered "V4" prototype on 22 May 1943. He enthusiastically endorsed the type and suggested that the Me-209 be cancelled. A few days later, the RLM placed an order for 100 production Me-262s.

    Even then, the Me-262's political troubles were far from over, and in fact were just about to take a very nasty turn. Hitler, alarmed by the success of Allied amphibious landings in Africa and Italy, was very concerned about developing a fast fighter-bomber ("Jagdbomber" or "Jabo") to pin down invasion forces on the beaches until reinforcements could arrive to drive them back into the sea. Adolf Galland and the Jagdwaffe insisted that all production should be fighters used for defense of Germany against the Allied bomber formations

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    Sunday

    Free plans Su-35

    Paper model Su-35

    You can download plans of paper model SU-35 here

    Model airplanes Su-35 is very detailed: 18 pages of drawings to A4 and 3 page assembly instructions.


    Su-35 is a Russian jet fighter 4 + + generation (however, some experts suggest that the totality of characteristics (ZOCT Scoring by 5th Gen Metrics) he satisfies the requirements for the fighter to the 5 th generation as well as the F-22).

    Su-35 has no formal letter symbols, however, to avoid confusion with the old Su-35 is often referred to as the Su-35BM, it has the factory code T-10BM.

    A distinctive feature of the aircraft is updated avionics, integrating avionics systems, new radar with phased array and new engines with rotary thrust vector. The aircraft is a transition between the fourth and fifth generation fighters.

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