" flying fortress ", 1936-1939gg ., 1938-1948 ., 30s, a.zhirnov ., activities, airplane, airport, all-metal, american, angl.north american, app. snub, applications, art, average, b -17, b-25, b-25 mitchell, basic, biplane, bob, boeing b-17, bomber, c.a.s.a., car, civil, clouds, construction, crew, designer, developed by, dhc-3 turbo otter, diamond da42, double, engines, england, english, fighter polutoroplan, fighters, fighting, flying fortress, four-engine, four-engine bombers, frequently, front, general purpose, green, heavy, heavy bomber, i-15, land, landed, lightweight, military, mitchell, moniker, monoplane, north, passenger version, pe- 8, periods, picture, plane, pre-war, quadruple, quintuple, radius, road, runway, senior officials, service, single-engined, sky, soviet, soviet union, spain, spitfire mk.7, su35, support, the first, torpedo, training, turboprop, twin star, twin-engine, type 245, ut-2, vickers, vildebeest, war, ww2, yakovlev