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Wang Bin, General Qiu, Chief Engineer Lin and others soon arrived at the control tower of the base. After all, this was a manned test flight, and the range that could be seen with the naked eye was very limited, even with a telescope, Its range of vision is also very limited.

However, according to the subject of the test flight, this test flight not only needs to conduct a test flight of various common actions, but also tests the maximum speed and maximum altitude.

After all, according to Qiye's original data, that is, the data before the engine was replaced.

Its top speed can also reach about Mach 2.0, and its top altitude can reach an altitude of 20,000 meters.

So what they want to test is whether Qi Ye can meet higher requirements in terms of maximum speed and maximum altitude after being replaced with a new engine.

As for whether Qiye's fuselage can support it at such a fast speed and at such a height, neither General Qiu nor Chief Engineer Lin at the base are worried about this point. After all, they are very concerned about Qiye. understandable.

What's more, this Qiye, which is preparing for a test flight, is not an ordinary Qiye. Many of its key parts have been specially treated, so the strength of this Qiye's body is definitely stronger than that of an ordinary Qiye. Grandpa is much stronger.

"Take off!" Following the command from the control tower, Zhao Feng immediately pushed the joystick lightly. Under the action of the engine, the plane began to slide forward slowly, and the speed also began to gradually increase. , and reached Qiye’s take-off requirements, Zhao Feng immediately pulled up the joystick, and Qiye left the ground at once, and rushed towards the air at an angle of almost 45 degrees, even at such an upward take-off angle At this time, not only did Qi Ye not slow down, but he was still speeding up.

Obviously, after installing a new engine, Qiye’s power is stronger at this time. If it is replaced with an old engine, when taking off, let alone an angle of 45 degrees, even if it is an angle of 30 degrees, seven Grandpa basically couldn't do it, not to mention, while flying at this angle, Qiye's speed was still increasing.

Wang Bin and others on the ground were also very excited. After all, they took off successfully and took off at a large angle, which meant that their engine was definitely a qualified engine.

Professor Po and the others were also a little excited. After all, Professor Po had put in the most effort during the development of this engine.

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Although the drawing of this engine was provided by Wang Bin,

However, the modification, manufacture and test run of this engine are all in charge of Professor Jak himself. Only Professor Jak knows how much effort and hardship they have put in during this period.

At this time, everyone in the entire air force base, including General Qiu, the pilots without missions, and the ground crew on the ground, all turned their eyes to the Qiye in the sky.

Compared with Wang Bin and the others, they are the ones who know the Qiye best, and now that the Qiye is taking off at such a large angle, they are looking forward to the engine on this Qiye even more. .

When the Qiye flew to a certain height, Wang Bin picked up the binoculars to watch the Qiye in the sky doing various movements.

I saw the Qiye in the air sometimes turning in a large radius, and sometimes turning into a small radius, sometimes doing a dive, and sometimes doing a snake-like maneuver in the air. It can be said that these movements made by the Qiye in the sky It is no worse than the actions of the national performance team, but because there is only one plane, the effect is not as spectacular as those performance teams.

Soon, all the low-altitude and high-speed flight test subjects were completed one by one. At this time, the aircraft reached the low-altitude and high-speed flight test subjects.

"Report to the tower, the plane is in good condition, and the engines are all normal, and we are applying for a low-altitude, high-speed flight test." Zhao Feng's voice came from the loudspeaker on the tower command platform.

"Low-altitude and high-speed flight is possible!" After hearing Zhao Feng's words, the tower commander looked at General Qiu and saw that he ordered low-altitude and high-speed flight, so he ordered.

Following the tower's order, I saw a stronger engine sound coming from the direction of which Qiye in the air, and Qiye also changed his flying attitude to a level flight attitude flying eastward. The speed is also increasing rapidly.

Not long after, Zhao Feng's voice came again from the tower's horn: "Report to the tower that the plane has broken through the sound barrier. The current speed of the plane is Mach 1.2, and the plane is still accelerating."

"Mach 1.23!"

"Mach 1.28!"

"Mach 1.45!"

"...!"

"The plane has reached Mach 1.7, the condition is good, the engine power is very abundant." Soon, the plane reached the speed of Mach 1.7! You must know that this is the speed at low altitude!

However, after the Qiye reached this speed, the control tower ordered Zhao Feng to increase the flight altitude and conduct a test flight with the maximum altitude and maximum speed. Now the speed of the aircraft at low altitude has reached Mach 1.7, which is very fast at low altitude. Dangerous, if you are not careful, there is a high possibility that the plane will crash and people will die. For the sake of safety, the low-altitude test will stop here.

Compared with test data and aircraft, Zhao Feng's life as an excellent pilot in Huaxia is more important. As for the test of the maximum speed at low altitude, Wang Bin and the others can completely test it on other aircraft, such as drones.

Within a few minutes, Zhao Feng reported to the control tower. At this time, he had reached an altitude of 15,000 meters, and the altitude was still rising. At the same time, the speed of the plane was also slightly improved compared to the previous one, reaching Mach 1.8. .

"Continue to increase your altitude until the limit of the aircraft's elevation, and continue to increase the speed in terms of flight speed." The control tower continued to order immediately.

"Understood!" Zhao Feng's answer came from the loudspeaker.

At the same time, the radar on the tower side also showed the height and speed of the Seventh Master that Zhao Feng was driving at this time.

16,000 meters, 17,000 meters... 20,000 meters, the altitude of the plane soon exceeded the highest altitude that Qi Ye could reach, and Qi Ye's ascent speed was still very fast Fast, and not slowed down because the altitude has exceeded the original limit.

At the same time, the speed of the plane also increases with the altitude, the air becomes thinner, the resistance becomes smaller, and it becomes faster, and soon exceeds Mach 2, which is the original limit of Qiye, and it is still increasing rapidly.

After all, Qiye's original engine had a maximum thrust of less than five tons, and even with afterburner turned on, its maximum thrust was only less than six tons.

And the engine installed on this Qi Ye! Its maximum thrust without extra force has reached 15 tons! But Qiye's original engine has three times the thrust!

This is still the case without afterburner. If afterburner is added, it will definitely exceed 16 tons. Therefore, after breaking through the original speed and height limit, this Seventh Master can continue to increase its height and speed.