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Nievdachin, Viacheslav Pavlovich
Born in 1887, the first references to Viacheslav Pávlovich Nievdachin date back to 1913, when together with the aeronautical manufacturer VN Jioni , he installed his own built floats to a Farman IV biplane. This aircraft was used in Odessa by Jioni and AV Shiukov to carry out propaganda flights with a characteristic decoration, which included chains of small electric lamps powered by batteries, which, starting from the cockpit, ran the entire wing leading edge and the interalar supports. No evidence has been preserved on the later fate of this device.
During World War I he served as a department head at the Kacha Aviation School, Sevastopol. In 1920 he was one of the members of the Commission for Heavy Aviation / KOMTA).
At the beginning of the 1920s, he became a reference figure in the circles of lovers of aviation. Following a request from glider lovers, the Glavvozdujoflot management decided to approve the creation of a circle of gliders subordinate to the Air Fleet Scientific Office. At the organizational meeting held on October to November of 1921, at the request of Professor VP Vietchikin this circle was called "thermal flying" (Парящий полет). Its first president was AA Zhavrov, who would soon be replaced by KK Artseulov. Among its first members was VP Nievdachin.
In 1923 he was one of the 10 participants in the I National Sailing Competitions flying his “Buriviestnik” glider, being awarded and in the second edition he was part of the organizing committee.
Under his direction, between 1922 and 1929, using funding from the Friends of the Air Fleet Society (ODVF), a glider and four light aircraft were built. All his creations bore the name "Buriviestnik", but with different indices. The glider was named P-5. The S-2, S-3, S-4 and S-5 light aircraft.
Between 1924 and 1925 the ODVF launched a competition for the development of low-power aircraft and aviation engines. The evaluation committee, which met between 5 and 23 June 1925 declared that none of the projects could be recommended for production without modifications. Despite this, the works of VP Nievdachin, SD Chernijovski, VL Alexandrov, brothers II and EI Pogoski and the project “Tri Druga” were valued positively.
In addition to his love for light aviation, Nievdachin dedicated part of his life to large-scale aviation, working in the propeller and engine group of the Aviation Factory No. 1 and since 1927 in No. 25, subordinate to the Department of Land Aircraft (OSS) under the direction of NN Polikarpov.
He was imprisoned during the great purge and worked on the infamous TsKB-29. At this stage he was responsible for the development of the wing center plane in the Myasichev DVB-102 (“102”) model, designed and built in this prison institution.
It is known that he kept working as a technologist in the aeronautical industry until his death in 1953.

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