As the name suggests, the on hook verification of the aircraft is the startup test after the engine is installed on the aircraft. At the same time, it is also a test item that must be carried out after the model aircraft is manufactured and off-line.


    At this time, Qiu Shi also nodded and didn''t speak, but from his eyes, we can clearly see that he was worried.


    After all, some time ago, the improved model of aircraft No. 6 taught us a profound lesson, and this accident also poured cold water on the passionate ambition of most aircraft manufacturers and designers in China.


    You know, since Tiangong technology has developed a variety of aircraft engines, countless domestic manufacturers with aircraft design and manufacturing licenses have suddenly ignited their ambitions. These aircraft design and manufacturing enterprises include both private and official enterprises, and their technical strength is also strong or weak. For example, East China Sea airlines, Jiangbei airlines and northwest airlines have absolute ability to design and manufacture aircraft with strong performance.


    However, those small enterprises are different. Although they also have aircraft manufacturing licenses, they can only manufacture some UAVs before, but now they have launched aircraft manufacturing projects of various models without considering the technology and other realities of their own companies. Even some companies have little strength, But he started the big plane project, which made Qiu division very worried about the aviation management department. If it goes on like this, something will happen sooner or later.


    Now the accident has given these people a blow in the head, so that those companies with inflated confidence can see the reality and make their goals. Manufacturing aircraft is not a simple world, nor can it be made with money.


    "Mr. Wang! The plane has been checked, everything is normal, and the fuel of the plane has been filled! Hang up test can be carried out at any time." about an hour later, the ground handling person in charge of Tiangong technology reported to Wang Bin through the walkie talkie!


    "Let''s start the test!" Wang Bin said immediately after listening to the person in charge of ground service.


    With Wang Bin''s order, three crew members were on the plane on the airport runway. Soon, the words of these crew members came from the tower!


    "The crew is in place and everything is normal. Phoenix one requests to hang up for test."


    "Start!"


    Just as Wang Bin''s words fell, the two engines of the phoenix-1 No. 1 aircraft on the airport runway began to rotate, and the rotation speed of the launcher became faster and faster. At the same time, the thrust generated by the engine made the phoenix-1 transport aircraft slowly slide forward along the runway.


    At this time, the voice of the crew came again from the communication system of the tower: "report to the tower that the engine is working normally, and all data of Phoenix 1 aircraft are normal......"


    At the same time, when the crew reported the situation in the aircraft to the control center, Wang Bin and others also looked at the huge display screen of the control center, which displayed the real-time synchronization parameters of the aircraft.


    All the data displayed on the screen are green. It can be seen that the aircraft is in good condition at this time, and there are no abnormal conditions, which makes Qiu Shi and others who were worried a lot relieved.


    At this time, the speed of the aircraft taxiing on the runway becomes faster and faster under the power provided by the engine. Finally, when the speed of the aircraft reaches the take-off limit, the aircraft does not pull up, but starts to slow down until the aircraft stops.


    After stopping, the plane began to turn around and then accelerate again. Finally, when it reached the take-off limit, the plane began to slow down again until it stopped at the end of the runway, that is, just before the test.


    When the plane stopped, the people in the control center couldn''t help applauding. After all, they saw the data on the screen just now, and there was no little red data. In other words, there were no problems during the hang-up run test of the aircraft, and all the data were within the design data range.


    With the completion of the on hook taxiing test, the fuel in the aircraft was released under the operation of the staff. At the same time, the ground crew began to check the inside and outside of the aircraft to see how the situation was. Although the real-time data of the aircraft was on the big screen and there was no problem, the on-site ground crew and staff inspection were necessary,


    Early the next morning, Wang Bin and Qiu Shi came to the airport again, and at this time, the phoenix-1 aircraft was already on the runway. At the same time, the preparations had been completed, including the inspection of the aircraft and fuel filling.


    So Wang Bin said directly after greeting Qiu Shi and others. "Start testing!"


    With Wang Bin''s order, at this time, the crew of the aircraft immediately turned on the engine of the aircraft to the maximum, and the engine of the aircraft immediately made an amazing roar. The whole aircraft immediately slid forward, and the speed became faster and faster. Finally, after the aircraft taxied for a kilometer on the ground, it pulled up and flew into the sky.


    Just after the successful flight of the aircraft, everyone in the whole airport and the control center gathered warm applause, and the technicians and designers who designed and manufactured the aircraft were also very excited at this time.


    You know, this is a real manned plane! It is also a medium-sized aircraft rather than a small aircraft, which is definitely a historic breakthrough for Tiangong technology, which means that Tiangong technology will no longer be just an engine manufacturer in the future.


    Tiangong technology is also an aircraft manufacturer, an aircraft manufacturer capable of manufacturing advanced aircraft.


    After taking off, the plane flew towards the air at an angle of 15 degrees, and the altitude was higher and higher, and the speed was faster and faster. It did not slow down because the plane climbed upward.


    After all, according to the design of the aircraft, the aircraft can climb at an angle of 23-30 degrees with full fuel and maintain its own speed.


    As the plane took off, it soon disappeared over Tiangong technology and flew to the East.


    So we all looked at the big screen in the control room. From the data and real-time images, we can clearly see that the aircraft has reached an altitude of more than 8000 meters, and its speed has reached Mach 0.9, that is, the subsonic water level. The most important thing is that the aircraft still flies upward at the level of 15 degrees, And the speed is also slowly increasing.


    At this time, Qiu Shi was worried and said to Wang Bin, "President Wang! It seems that today is a test flight subject, and there is no supersonic flight program. At the same time, there seems to be no flight test above 10000 meters. Is it necessary for the crew to reduce the speed and height of the aircraft?"