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Polikarpov I-3
The Polikarpov I-3 (russian: Поликарпов И-3) was a Soviet fighter designed during the late 1920s. It entered service in 1929, but was retired in 1935 with the advent of fighters with higher performance. Design and development Development of the I-3 began in mid-1926 after investigations into the loss of the Polikarpov DI-1 were completed. Although the new biplane shared many of the characteristics of the earlier design, including the staggered sesquiplane layout of the wings, it was a new design. It was designed by the OSS (russian: Otdel Sookhoputnykh Samolyotov — Landplane Department) of ''Aviatrest'' (Aviation Trust) under the supervision of Nikolai Nikolaevich Polikarpov, head designer of the department. There was much debate within the OSS about the proper powerplant for the new fighter, but Polikarpov rejected the Wright Tornado radial engine and decided in favor of the BMW VI liquid-cooled V12 engine. A wooden mock-up was completed in April 1927, but formal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soviet Union
The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a Federation, federal union of Republics of the Soviet Union, fifteen national republics; in practice, both Government of the Soviet Union, its government and Economy of the Soviet Union, its economy were highly Soviet-type economic planning, centralized until its final years. It was a one-party state governed by the Communist Party of the Soviet Union, with the city of Moscow serving as its capital as well as that of its largest and most populous republic: the Russian Soviet Federative Socialist Republic, Russian SFSR. Other major cities included Saint Petersburg, Leningrad (Russian SFSR), Kyiv, Kiev (Ukrainian Soviet Socialist Republic, Ukrainian SSR), Minsk (Byelorussian Soviet Socialist Republic, Byelorussian SSR), Tas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conventional Undercarriage
Conventional landing gear, or tailwheel-type landing gear, is an aircraft undercarriage consisting of two main wheels forward of the center of gravity and a small wheel or skid to support the tail.Crane, Dale: ''Dictionary of Aeronautical Terms, third edition'', page 133. Aviation Supplies & Academics, 1997. From the Ground Up, 27th edition, page 11 The term taildragger is also used, although some argue it should apply only to those aircraft with a tailskid rather than a wheel. The term "conventional" persists for historical reasons, but all modern jet aircraft and most modern propeller aircraft use tricycle gear. History In early aircraft, a tailskid made of metal or wood was used to support the tail on the ground. In most modern aircraft with conventional landing gear, a small articulated wheel assembly is attached to the rearmost part of the airframe in place of the skid. This wheel may be steered by the pilot through a connection to the rudder pedals, allowing the rudder ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polikarpov I-15
The Polikarpov I-15 (russian: И-15) was a Soviet biplane fighter aircraft of the 1930s. Nicknamed ''Chaika'' (''russian: Чайка'', "Seagull") because of its gulled upper wings,Gunston 1995, p. 299.Green and Swanborough 1979, p. 10. it was operated in large numbers by the Soviet Air Force, and together with the Polikarpov I-16 monoplane, was one of the standard fighters of the Spanish Republicans during the Spanish Civil War, where it was called Chato (snub-nose). Design and development The design for the 14th fighter for the VVS, the I-14, started as an advanced (for the era) monoplane under the direction of Andrei Tupolev. He grew concerned that the design would not mature, and ordered two backup biplane designs as the I-14A and B just to be safe. Polikarpov had just been released from prison in August 1932, and was handed the I-14A project. When both the I-14 and I-14A were ordered into production, Polikarpov's design, a development of the I-5 fighter became the famou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polikarpov I-5
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). Development The 1928 Five-Year Plan ordered the Tupolev design bureau to develop a mixed-construction (metal and wood/fabric) biplane fighter powered by a Bristol Jupiter VII engine with the first prototype completed by 1 September 1929. The new fighter was designated I-5 (''Istrebitel''—Fighter), but had the internal Tupolev designation of ANT-12. Concurrently, Ni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bobruisk
Babruysk, Babrujsk or Bobruisk ( be, Бабруйск , Łacinka: , rus, Бобруйск, Bobrujsk, bɐˈbruɪ̯s̪k, yi, באָברויסק ) is a city in the Mogilev Region of eastern Belarus on the Berezina River. , its population was 209,675. The name Babrujsk (as well as that of the Babruyka River) probably originates from the Belarusian word (; 'beaver'), many of which used to inhabit the Berezina. However, beavers in the area had been almost eliminated by the end of the 19th century due to hunting and pollution. Babrujsk occupies an area of , and comprises over 450 streets whose combined length stretches for over . Babrujsk is located at the intersection of railroads to Asipovichy, Zhlobin, Aktsyabrski and roads to Minsk, Homyel, Mahilyow, Kalinkavichy, Slutsk, and Rahachow. It has the biggest timber mill in Belarus, and is also known for its chemical, machine building and metal-working industries. In 2021, there were 38 public schools in Babrujsk, with over 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bryansk
Bryansk ( rus, Брянск, p=brʲansk) is a types of inhabited localities in Russia, city and the administrative center of Bryansk Oblast, Russia, situated on the Desna (river), River Desna, southwest of Moscow. Population: Geography Urban layout The location of the settlement was originally associated with navigable river-routes and was located in the area of the Chashin Kurgan, where the fortress walls were erected. For reasons that have not yet been clarified, the city changed its location and by the middle of the 12th century had established itself on the steep slopes of the right bank of the Desna on Pokrovskaya Hill (russian: Покровская гора). The foundations of the future urban development of the city were laid even earlier, when around the city-fortress in the 17th century after the Time of Troubles of 1598-1613 on the coastal strip at the foot of the Bryansk fortress the posadskaya "Zatinnaya Sloboda" was upset, and on the upper plateau, between Verkhniy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smolensk
Smolensk ( rus, Смоленск, p=smɐˈlʲensk, a=smolensk_ru.ogg) is a city and the administrative center of Smolensk Oblast, Russia, located on the Dnieper River, west-southwest of Moscow. First mentioned in 863, it is one of the oldest cities in Russia. Population: The city has been destroyed several times throughout its long history because it was on the invasion routes of various empires. Smolensk is known for its electronics, textiles, food processing, and diamond faceting industries. Etymology The name of the city is derived from the name of the Smolnya River. Smolnya river flows through Karelian and Murmansk areas of north-western Russia. The origin of the river's name is less clear. One possibility is the old Slavic word () for black soil, which might have colored the waters of the Smolnya. An alternative origin could be the Russian word (), which means resin, tar, or pitch. Pine trees grow in the area, and the city was once a center of resin processing an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grigorovich I-2
The Grigorovich I-2 was a biplane fighter aircraft of the Soviet Union, the first indigenous fighter to enter service in substantial numbers. Developed from the Grigorovich I-1, it first flew on 4 November 1924, piloted by A.I. Zhukov. The M-5 engine was a Soviet copy of the Liberty L-12. Production of the redesigned I-2bis was 211 aircraft. Production was performed by Aviation Repair Plant No.3 in Smolensk. Operators ; * Soviet Air Forces The Soviet Air Forces ( rus, Военно-воздушные силы, r=Voyenno-vozdushnyye sily, VVS; literally "Military Air Forces") were one of the air forces of the Soviet Union. The other was the Soviet Air Defence Forces. The Air Forces ... Specifications (I-2bis) See also External links D.Grigorovich page at www.aviation.ru {{Soviet fighter designations 1920s Soviet and Russian fighter aircraft Grigorovich aircraft Aircraft first flown in 1924 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Belorussian Military District
The Byelorussian Military District (russian: Белорусский военный округ, translit=Belorusskiy Voyenyi Okrug; alternatively Belarusian; ) was a military district of the Soviet Armed Forces. Originally formed just before World War I as the Minsk Military District out of the remnants of the Vilno Military District and the Warsaw Military District, it was headed by the Russian General Eugen Alexander Ernst Rausch von Traubenberg. With the outbreak of the Russian Civil War it was reorganized into the Western Front and in April 1924 it was renamed to the Western Military District. In October 1926 it was redesignated the Belorussian Military District, with its staff in Smolensk. And in July 1940 it was renamed the Western Special Military District. It covered the territory of the Byelorussian SSR and the western part of the RSFSR (including Smolensk area, Bryansk area, and parts of Kaluga area). History In 1928, the first maneuvers of troops of the district w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scarff Ring
The Scarff ring was a type of machine gun mounting developed during the First World War by Warrant Officer (Gunner) F. W. Scarff of the Admiralty Air Department for use on two-seater aircraft. The mount incorporated bungee cord suspension in elevation to compensate for the weight of the gun, and allowed an airgunner in an open cockpit to swivel and elevate his weapon (a Lewis machine gun) quickly, and easily fire in any direction. Later models permitted the fitting of two Lewis guns; while this doubled the firepower available, operation of the paired guns was more cumbersome, and required considerable strength from the gunner, especially at altitude, so that many gunners preferred the original single gun - and this became the postwar standard. In either case, the mounting was simple and rugged, and gave its operator an excellent field of fire. It was widely adapted and copied for other airforces. As well as becoming a standard fitting in the British forces during the First World ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Degtyaryov Machine Gun
The Degtyaryov machine gun (russian: Пулемёт Дегтярёвa Пехотный, Pulemyot Degtyaryova Pekhotny literally: "Degtyaryov's infantry machine gun") or DP-27/DP-28 is a light machine gun firing the 7.62×54mmR cartridge that was primarily used by the Soviet Union, with service trials starting in 1927, followed by general deployment in 1928. Besides being the standard Soviet infantry light machine gun (LMG) during World War II, with various modifications it was used in aircraft as a flexible defensive weapon, and it equipped almost all List of tanks of the Soviet Union, Soviet tanks in WWII as either a flexible bow machine gun or a Weapon mount#Coaxial, co-axial machine gun controlled by the gunner. It was improved in 1943 producing the DPM, but it was replaced in 1946 with the RP-46 which improved on the basic DP design by converting it to use belt feed. The DP machine gun was supplemented in the 1950s by the more modern RPD (weapon), RPD machine gun and entirely ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mikulin M-17
The Mikulin M-17 was a Soviet-licensed copy of the German BMW VI V-12 liquid-cooled aircraft piston engine, further developed by Alexander Mikulin and used by Soviet aircraft and tanks during World War II. Production began in 1930 and continued through 1942. More than 27,000 were produced, of which 19,000 were aircraft engines while the rest were used in Soviet tanks of the period. Acquisition and production The Soviets had bought examples of BMW's III and IV engines earlier in the 1920s and bought two examples of the VI engine in 1926 for evaluation. Following successful bench trials of the engine the Soviets decided to purchase a license for it. A deal was concluded in October 1927 after prolonged negotiations. The Soviets paid $50,000 and were to pay 7.5% of the price of each engine produced after the first fifty. In exchange, the German company was to inform the Soviets of all changes to the engine for a period of five years. Soviet engineers and technicians were to be t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
