Flight difficulty of Ali Kunsha airport

Mars and his colleagues began to verify the preparations for the test flight of Ali Airport after the team made a detailed investigation on the topography, meteorological conditions and airport security. In the face of the thick data book collected, Mars said a word: "Difficult!"

Ali Airport is located in the valley surrounded by Himalayas and Gangdise Mountains. There are mountain obstacles on the take-off and landing routes, and planes can only take off and land in the winding valley. In addition, the weather in Ali is complex and changeable, and the gale time of magnitude 8 or above is as long as 120 days every year, which increases the flight difficulty of Ali Airport. At the same time, due to the scarcity of vegetation in Ali area, the airport heats up rapidly during the day, and high temperature and high altitude will lead to double attenuation of flight performance and limited aircraft load. Planes can only take off and land in the morning, and the cumulative airworthiness time of the airport is less than half of that of the plain airport. Ali Airport is 550km away from Hotan Airport, the nearest airport in Xinjiang, and1100km away from Lhasa Airport. The alternate airport has a long flight distance and the situation is complicated. These comprehensive difficulty factors add up, and Ali Airport is undoubtedly the most difficult plateau airport to fly at present.

In the face of difficulties, Mars did not flinch. He and the crew made full preparations for the test flight. In the test flight on May 28th, Mars, as the responsible captain, flew over the majestic sacred mountain and lake for the first time. The plane obviously felt particularly bumpy during the take-off and landing phase. This is because the plane flies in the valley, and the complicated and changeable terrain makes the wind direction change quickly. Pilots must pay attention to the monitoring and control of aircraft. Thanks to a lot of preparatory work in the early stage, Mars and the crew resolutely controlled the complicated and changeable wind direction and speed, calmly responded, and successfully completed the verification flight test mission of Ali Airport.

After the test flight was completed, Ali's maiden voyage was in front of Mars and his colleagues.

"I have flown over many plateau airports in the southwest, but I have never encountered such a huge load reduction as Ali Airport." Mars's feeling. Ali airport has a high altitude and thin air, and the performance of the aircraft is obviously attenuated. Coupled with the high temperature, the take-off of the plane at Ali Airport will definitely be greatly reduced, and it can transport about 60 people at most. The huge load reduction brings great security pressure to airlines and also faces great operational difficulties. In order to take off in Ali area, Mars and his colleagues faced difficulties, comprehensively grasped the climate data of Ali airport in the same period last year, made a reasonable flight plan through scientific analysis, and used strict sales strategies to minimize the losses caused by a large number of load reductions. At the same time, Air China Southwest Branch decided to use the powerful unit equipped by Captain No.3 for a long time to run the Ali route to ensure flight safety.