Seventy-one years ago today, on July 26, 1954 (June 27, 1954), our country's first batch of aircraft was successfully manufactured and a test flight ceremony was held. On July 26, 1954, the first batch of aircraft made by China itself was held for a test flight ceremony. The Republic at the beginning of its establishment still has the scars of war everywhere. Under the extremely poor material and technical conditions, the aircraft trial-production personnel overcame many difficulties and finally produced the first batch of aircraft and successfully tested them. This batch of aircraft is a primary trainer aircraft. The fuselage is frame-type, with a single wing under the lunar calendar and a single engine. It has good stability and is easy to operate. In addition to training pilots for the Air Force, this aircraft can also be used in agriculture, forestry and animal husbandry, as well as postal transportation and international sports.