On this day, 71 years ago, July 26, 1954 (June 27, 1954, the lunar calendar), China successfully built its own primary trainer for the first time. On July 26, 1954, China held a test flight ceremony meeting for the first time successfully built its own primary trainer-the "Junior Teaching V". Strict test flight evaluation proved that these aircraft performed well and were fully in line with the standards. Since then, the history that China could not manufacture aircraft has ended, and a decisive step has been taken in China's aviation industry from repair to manufacturing. The picture shows the "Primary Education V" stored in the Aviation Museum of China. On April 1, 1954, the National Aviation Industry Administration approved Nanchang Aircraft Manufacturing Plant to produce Jacques-18s in advance. In July 1954, the Nanchang factory successfully copied the first Jacques-18 trainer and named it Chujiao-5. At 5:15 pm on July 3, 1954, the first flight of Chujiao-5 was successful. The supporting Zhuzhou Aero Engine Manufacturing Factory was also officially established. Although it now seems that the Chujiao-5 is getting old, it is the beginning of my country's mass manufacturing of aircraft and aircraft engines, and it has unusual significance. Ten Chujiao-5 aircraft were produced that year, and 60 were delivered to the troops the following year. By 1958, a total of 379 aircraft were produced. The fuselage of the aircraft is welded into a skeleton by alloy steel pipes, forming a frame-type fuselage skeleton. The front section of the fuselage and engine fairing are made of aluminum alloy skin. The rear half of the fuselage is covered by cloth skin. The wing consists of a trapezoidal outer wing and a rectangular middle wing. The middle wing is an all-metal structure, consisting of two girders and 8 wings. Fortunately, I am worried that I am in the middle of the mountain. 5-liter fuel tank. The middle wing is connected to the fuselage frame. The leading edges, beams, ribs, etc. of the outer wings and tail wings are made of aluminum alloy; Cloth skin. The engine is an M-11FP 5-cylinder air-cooled piston engine that is reliable and easy to use. For the rear three-point landing gear, the main wheel is semi-buried in the middle wing, and the tail wheel is fixed and unretractable. The tandem sealed cockpit has a good field of view. The aircraft is equipped with a radio transceiver and in-flight communication equipment. The wingspan is 10.60 meters, the total length of the fuselage is 8.072 meters, the height of the aircraft is 3.10 meters, the normal takeoff weight is 1120 kilograms, the empty weight is 816 kilograms, the maximum flat flight speed is 248 kilometers/hour, the cruising speed is 160 kilometers/hour, and the climb rate (low altitude) is 3.5 meters/second., the practical lifting limit is 4000 meters, the maximum range is 1000 kilometers, the battery life is 8.28 hours, the take-off and-roll distance is 205 meters, and the landing speed is 85 kilometers/hour. The landing and running distance is 207 meters. Comment: The beginning of China's aircraft manufacturing industry