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General Wang Bin and Qiu and Lin Chi and others will soon come to the base of the base. After all, this is a test flight that is driving, only with the naked eye, the range can be seen very limited, even even use a telescope, It is also very limited in the range.

But according to the subject of the test flight, this test is not only a test flight of ordinary various actions, but also the maximum speed and the maximum height test.

After all, according to the original data of the seven, the data is not replaced before the engine.

Its maximum speed can also reach about 2.0 Mach, and the highest height can reach a high altitude of 20,000 meters.

So what they have to test is that seven masters have reached a higher demand after replacing new engines.

As for such a fast speed and so height, the seven-one body body is not able to support, for this, whether the Qiu General, the base is not worried, after all, they are very good for seven years. Understanding.

Moreover, this seven masses that are preparing to test flying are not ordinary seven masters. Many of its key parts have been specially treated, so this seven-master body fuselage is absolutely a general seven Max is much better.

"Take off!" As the tower came to order, Zhao Feng immediately pushed the operating rod. Under the engine's role, the start slowly walked toward the front, and the speed began to gradually speed, with the speed acceleration And when the Qi Qi took off, Zhao Feng immediately pulled up the operating rod, and the seven did leaving the ground, and the angle of almost 45 degrees will rush to the air, even if this is the angle of this At this time, the seven master is not only speed, but it is still acceleration.

Obviously, after changing the new engine, the motivation of seven masters at this time, if the old engine is changed, when takeoff, don't say the angle of 45 degrees, even if it is a 30 degree angle, seven Lord is basically can't do, let alone, in this angle flight, the speed of seven is still increasing.

Wang Bin and others on the ground are also very excited. After all, take off success, and still take off at a great angle, which represents, their engine, is definitely a qualified engine.

And the professor, etc.

Although this engine's drawings are provided by Wang Bin, the modification of this engine is all responsible for the professor, and how much effort is made during the period, and it is only a hardship.

At this time, the entire air force base owner, including Qiu General, a pilot without missions, the ground-owned personnel, etc., all the eyes look at the seven masters of the air.

Compared to Wang Bin, they are the most understandable people in this seven master, and now this seven master take off with such a large angle, which makes them more expecting for the engine in this seven master. .

When this seven master flew to a certain height, Wang Bin took the seven master of the telescope to watch the air.

I saw the seven years of the air and the large radius turned, and sometimes it turned into a small radius turning, and when I dive the action, I made a snake-shaped motor in the air. It can be said that these actions made in this seven master. The difference between the country's performance team is only because there is only one plane, so the effect is not as spectacular.

Soon, low-altitude test flying action subjects were completed one by one, and the aircraft arrived at the low-altitude high-speed flight test phase.

"Reporting the tower, the aircraft is good, the engine is normal, and the application is applied for low-altitude high-speed flight test." The speakers on the tower podium came from Zhao Feng's voice.

"You can perform low-altitude high-speed flying!" Listening to Zhao Feng, the tower of the tower looked at the generals of seeing Qiu, seeing his command can carry a low-altitude high-speed flight, so the command.

With the command of the tower, I saw which seven directions in the air came back to the more powerful engine sound, and the seven masters changed their flight postures, turned into the flying gesture to the east, while the plane Speed ​​is also rapidly upgrading.

Not long after, the speakers of the tower were again transmitted: "Report the tower, the plane has broken the sound barrier, the current speed is 1.2 Mach, the plane is still accelerating."

"1.23 Mach!"

"1.28 Mach!"

"1.45 Mach!"

"...!"

"The plane has reached 1.7 Mach, the condition is good, the engine is very powerful." Soon, the plane reached 1.7 Mach! I know this is the speed under low space!

However, after this seven master reaches this speed, the tower will order Zhao Feng to improve the height of the flight, carry out the maximum height and the highest speed test, now the aircraft has reached 1.7 Mach at a low altitude, so the speed is very small. Dangerous, slightly inadvertent, it is very likely that the machine will be destroyed. For safety, low-altitude test is first until it will.

Compared to test data and aircraft, as the good pilots of Huaxia, Zhao Feng's life is more important. As for the low-altitude speed test, Wang Bin can completely put it on other aircraft, such as drone. Test.

I didn't have a few minutes. Zhao Feng reported on the tower. At this time he has reached the height of 15,000 meters, and the height continues to rise, and the speed of the aircraft is slightly improved than before, it reaches 1.8 Mach .

"Continue to enhance your height until the aircraft can improve the limit, and continue to speed up in terms of flight speed." Tower continues immediately to order.

"Understand!" The speaker came from Zhao Feng's answer.

At the same time, on the radar of the tower, it also shows the height and speed of Zhao Feng driving this seven master.

10,000 meters, 10,000 meters ..... 20,000 meters, very fast the height of the plane, has exceeded the highest height that the seven can achieve, and the rise in the seven years is still very Fast, did not slow because the height has exceeded the original limit.

At the same time, the speed of the aircraft also rises with the height, the air becomes thinner, and it becomes faster, and soon exceeds the two Mach, which is the limit of the seven master, and it is still fast.

After all, the original engine, the biggest thrust is less than five tons, even if it is starting, the maximum thrust is less than six tons.

And this Juilde installed this engine! Its maximum uneven thrower has also reached fifteen tons! However, the seven masses have the original engine's triple thrust!

This is still not aggressive, and if it is stretched, it will definitely exceed 16 tons, so this seven master can continue to increase the height and speed after breaking through the original speed and height limit.