Information: - Operation Barbarossa (German: "Unternehmen Barbarossa") was the code name for Nazi Germany's invasion of the Soviet Union during World War II, which was launched on Sunday 22 June 1941. The operation was driven by an ideological desire to conquer the Western Soviet Union so that it could be repopulated by Germans, to use Slav labour for the war effort, to seize the oil resources in the Caucasus and to seize the grain supply in the Ukraine. - A fixed-wing aircraft is an aircraft, such as an aeroplane, which is capable of flight using wings that generate lift caused by the vehicle's forward airspeed and the shape of the wings. Fixed-wing aircraft are distinct from rotary-wing aircraft, in which the wings form a rotor mounted on a spinning shaft, and ornithopters, in which the wings flap in similar manner to a bird. - The Polikarpov I-5 was a single-seat biplane which became the primary Soviet fighter between its introduction in 1931 through 1936, after which it became the standard advanced trainer. Following Operation Barbarossa, which destroyed much of the Soviet Air Forces (VVS), surviving I-5s were equipped with four machine guns and bomb racks and pressed into service as light ground-attack aircraft and night bombers in 1941. They were retired in early 1942 as Soviet aircraft production began to recover and modern ground-attack aircraft like the Ilyushin Il-2 became available. A total of 803 built (including 3 prototypes). - Aviation is the practical aspect or art of aeronautics, being the design, development, production, operation and use of aircraft, especially heavier than air aircraft. The word "aviation" was coined by French writer and former naval officer Gabriel La Landelle in 1863, from the verb "avier" (synonymous flying), itself derived from the Latin word "avis" ("bird") and the suffix "-ation". - A prototype is an early sample, model, or release of a product built to test a concept or process or to act as a thing to be replicated or learned from. It is a term used in a variety of contexts, including semantics, design, electronics, and software programming. A prototype is generally used to evaluate a new design to enhance precision by system analysts and users. Prototyping serves to provide specifications for a real, working system rather than a theoretical one. In some design workflow models, creating a prototype (a process sometimes called materialization) is the step between the formalization and the evaluation of an idea. - A monoplane is a fixed-wing aircraft with a single main wing plane, in contrast to a biplane or other multiplane, each of which has multiple planes. - In computing, WinG (pronounced "Win Gee") is an application programming interface that is a port of Windows 95's Device Independent Bitmaps to provide faster graphics performance on Windows 3.x operating environments, and was initially positioned as a way to help game developers more easily port their DOS games to Microsoft Windows, although it was quickly discontinued in favor of DirectX. - Grigorovich DI - 3 ( Russian : - 3 ) , ( Dvukhmyestnyi Istrebitel - two - seat fighter ) , was a prototype two - seat fighter developed in the Soviet Union in the 1930s . It was intended to be a long - range escort fighter developed from the DI - 2 with improved range and performance comparable to single - seat fighter aircraft of the time . DI - 3 was a single - bay biplane of mixed construction with a twin - rudder tailplane of variable incidence . Although initial tests demonstrated flight characteristics comparable to Polikarpov I - 5 , the addition of armament and operational equipment caused significant degradation in performance and DI - 3 did not enter mass production . The prototype was subsequently fitted with an enclosed cockpit and used as a VIP transport . - A biplane is a fixed-wing aircraft with two main wings stacked one above the other. The first powered, controlled aeroplane to fly, the Wright Flyer, used a biplane wing arrangement, as did many aircraft in the early years of aviation. While a biplane wing structure has a structural advantage over a monoplane, it produces more drag than a similar unbraced or cantilever monoplane wing. Improved structural techniques, better materials and the quest for greater speed made the biplane configuration obsolete for most purposes by the late 1930s. - The Ilyushin Il-2 (Cyrillic: -2) Sturmovik was a ground-attack aircraft (Cyrillic: , "Sturmovik") produced by the Soviet Union in large numbers during the Second World War. With 36,183 units of the Il-2 produced during the war, and in combination with its successor, the Ilyushin Il-10, a total of 42,330 were built, making it the single most produced military aircraft design in aviation history, as well as one of the most produced piloted aircraft in history along with the American postwar civilian Cessna 172 and the Soviet Union's own then-contemporary Polikarpov Po-2 "Kukuruznik" multipurpose biplane. - The Wright Flyer (often retrospectively referred to as Flyer I or 1903 Flyer) was the first successful heavier-than-air powered aircraft. It was designed and built by the Wright brothers. They flew it four times on December 17, 1903, near Kill Devil Hills, about four miles south of Kitty Hawk, North Carolina, US. Today, the airplane is exhibited in the National Air and Space Museum in Washington D.C. - The Soviet Air Forces (literally "Military Air Forces") was the official designation of one of the air forces of the Soviet Union. The other was the Soviet Air Defence Forces. The Air Forces were formed from components of the Imperial Russian Air Service in 1917, faced their greatest test during World War II, were involved in the Korean War, and dissolved along with the Soviet Union itself in 199192. Former Soviet Air Forces' assets were subsequently divided into several air forces of former Soviet republics, including the new Russian Air Force. "March of the Pilots" was its anthem. What is the relationship between 'grigorovich di-3' and 'military aircraft'?
The answer to this question is:
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