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1975年初,进行了五年的气动布局和结构布局及其部件研究工作宣告完成。契尔年柯夫因病不能再担任课题负责人,1975年任命米哈依尔·彼得洛维奇·西蒙诺夫担任飞机的总设计师。随着生产苏-27第一架试验机开始,引出了一连串激动人心的故事。第一架样机的生产挑选的都是训练有素、经验最丰富的生产者参加。还在绘制苏-27生产图纸阶段,试生产的工艺人员就介入了,特别是焊接人员,因为飞机广泛采用了焊接技术。焊接人员不仅要掌握新工艺,同时还要把它用于第一批样件,不久就出现了十分难堪的局面。在中央翼壁板焊接时出现了
In early 1975, a five-year aerodynamic layout and structural layout and component study were completed. Chernykoff was no longer responsible for the subject due to illness, in 1975 Mikhail Petrovich Simonov was appointed chief architect of the plane. With the production of SU-27 first test machine began, leads to a series of exciting stories. The production of the first prototype was selected by well-trained and experienced producers. Also drawing Su-27 production drawing stage, trial production process personnel involved, especially welding personnel, because the aircraft widely used welding technology. Welding personnel not only have to master the new technology, but also to use it for the first batch of samples, and soon appeared in a very embarrassing situation. Appeared during welding of the central wing panels