Seventy-five years ago today, on August 1, 1950 (June 18, 1950 lunar calendar), China's civil aviation officially set sail. On August 1, 1950, China's civil aviation officially set sail. The navigation plan approved by the State Council stipulates that the first two direct lines will be opened, Tianjin-Hankou-Guangzhou, Tianjin-Hankou-Chongqing, and four branch lines from Chongqing-Chengdu, Chongqing-Kunming, Chongqing-Guiyang, Chongqing-Hankou. In addition, according to the agreement between the Chinese government and the Soviet government on the establishment of the Sino-Soviet Civil Aviation Joint Stock Company, the Chinese and Soviet governments have selected personnel to establish the company management committee to carry out various preparatory work. After the company was officially established on July 1, it will officially start sailing on August 1. Its sailing plan stipulates that three direct routes are currently opened, namely Beijing - Taiyuan - Xi'an - Lanzhou - Jiuquan (Suzhou) - Dihua - Almaty, Beijing - Zhangjiakou - Kurun - Irkutsk, Beijing - Shenyang - Harbin - Qiqihar - Chita.