OKB Chyetverikov was a Soviet aircraft design bureau headed by designer Igor Vyacheslavovich Chyetverikov at the TsAGI (Tsentrahl'nyy Aerodinamicheskiy i Ghidrodinamicheskiy Institoot- central aerodynamics and hydrodynamics institute) Menzhinskii factory in 1931 in order to produce flying boat designs. Chyetverikov, Igor Vyacheslavovich (1909–1987), was a Soviet aircraft designer, and a Candidate in Technical Sciences (1951). After completion of the Institute of the railroad and highway engineers, from 1928 he worked in D.P.Grigorovich’s OKB, where he conducted static and flight tests of training biplane MU-2. After the arrest of Grigorovich, he worked in Richard KB. With the departure of Richard, KB MOS was transferred to TsKB (Tsentrahl'noye konstrooktorskoye byuro - central construction bureau) TsAGI (Tsentrahl'nyy Aerodinamicheskiy i Ghidrodinamicheskiy Institoot- central aerodynamics and hydrodynamics institute) in the name of N. Ye. Zhukovskiy, where Chyetverikov headed the naval aviation division. In December 1931 Chyetverikov departed for Sevastopol to participate in the tests of his long-range reconnaissance aircraft MDR-3. However, during the second flight MDR-3 begun to experience a strong vibration of the tail assembly-buffeting. On the 25 March 1932 tests are finally interrupted on the bureau's first major project. The MDR-3 was only a limited success, and then only after substantial redesign by Tupolev after the design documentation for MDR-3 was transferred to ZOK TscAgi (KB Tupolev), where the design was used as a base for Ant-27 (MDR-4). In 1930, G.M.Beriev, working in Chyetverikov’s division, proposes a project MBR-2 which Chyetverikov supports. However, after the transfer of TsKB TsAGI to TSKB-39 during 1933, brigade №5 (naval aircraft) is headed by Beriev and not Chyetverikov. Unemployedin 1933, Chyetverikov turned to the division for design for gliders and propeller-driven sleighs (OSGA) of NII GVF(Naoochno-Issledovatel'skiy Institoot Grazdahnskovo Vozdooshnovo Flota - scientific test institute for civil air fleet) with the proposal for creation of aircraft for the submarines (SPL and Hydro-1). In 1934-1935 Chyetverikov designed and built a light flying boat in two versions: OSGA-101 - deck-based aircraft, and SPL – a folding aircraft for a submarine. In 1935 the SPL was presented by Chyetverikov at the Milan exhibition of 1935, and in 1937 it was used to establish several World records. More information...
According to PR-model, dmzdubna.ru is ranked 1,064,563rd in multilingual Wikipedia, in particular this website is ranked 116,210th in Russian Wikipedia.
The website is placed before mediacenterstan.com and after bromium.com in the BestRef global ranking of the most important sources of Wikipedia.
