Just as Jiang Yanhai was talking to Professor Qian, the video conversation quickly lit up. In about 5 minutes or so, the screen in front of Jiang Yanhai lit up a total of 6.

"Okay, the people have arrived, boy, you send us all the design materials of the engine you designed, if there is really a thrust-to-weight ratio of 27...... Even if the performance in other areas is not up to par, it is enough for us to do it. Liu Lao said with some excitement.

These professors have all been introduced, Jiang Yanhai is also a little excited, these are the backbone of the republic, it can be said that they are all Taishan Beidou-level characters who support the sky of the entire motherland, these old professors, you don't usually know them, but without them, this country would not have so many advanced weapons and equipment.

Without these advanced weapons and equipment, even if a soldier like Jiang Yanhai and others had the heart to serve the country, they would not have a sharp weapon to kill the enemy.

After saying hello to these old professors, Jiang Yanhai began to operate the tactical tablet in front of him and transmitted the completed test results.

"Xiao Jiang, what tests have been done for this engine you designed? Did it start with component testing? An old professor surnamed Li, the oldest of whom was close to eighty years old and was a woman, asked.

"Professor Li, no, I developed it in a private research institute, because the official research institute can't waste state funds casually, so I directly designed it, and then spent money to assemble the entire engine production, directly tested the whole machine components, and has completed a 150-hour long test test." Jiang Yanhai said while transferring the file.

"What?! Have you completed 150 hours of long test drives? Professor Qian and several other old professors were a little excited.

Jiang Yanhai nodded, to be honest, he was actually a little worried, because these people were not young, and the youngest were in their fifties.

It's not that there are no young talents, but these old professors are all Taishan Beidou-level figures, and their level of secrecy is high enough, so such a thing will naturally be handed over to these old professors for transmission as soon as possible.

"Quick, pass us the papers." Professor Qian was a little excited, and several other professors were also obviously a little excited.

It can withstand 150 hours of test testing, which proves that this engine is very mature! You must know that in previous years, none of the engines designed and produced in China could support 150 hours of test testing!

The document was quickly transferred, after all, the file is not big, just all the detailed data about the tests, these professors are all figures in aero engines, and even many aviation school textbooks are written by them.

Naturally, these things are not difficult for them.

"Principal Zheng." Jiang Yanhai lowered his voice.

"What's wrong?" Principal Zheng raised his head and glanced at the screen before asking in a low voice.

"I think, these old professors, shouldn't they pay attention in advance, they are all old, if they are too excited." Jiang Yanhai hesitated, but still expressed his worries.

You must know that when Professor Zhao first got it, his blood pressure was a little high, and Professor Zhao was young.

Principal Zheng looked at the screen, and then said in a low voice: "It's hard for you kid to think of this, don't worry, there is someone around them who is in charge of taking care of them at any time, and there must be someone next to you for such a thing, but you can't see it." ”

"Then I'll rest assured, otherwise, if something happens to them, I'll become a sinner." Jiang Yanhai breathed a sigh of relief.

"Don't worry, it's okay, and even if you don't let them know, such a big event, for those scientists who have worked hard for the country's aero engine all their lives, even if something happens, they have to see this scene with their own eyes!" Principal Zheng nodded earnestly.

Jiang Yanhai also nodded silently, although these old scientists are not soldiers and have not fought at the forefront of the war, they are also on another battlefield, dedicating their lives to this country and this nation.

Time passed little by little, and after more than ten minutes, an old voice came from the screen with some excitement.

"Good...... Good, good! Heroes out of teenagers! Heroes are boys! The eldest, Professor Li, knocked on the table excitedly, and her face was already full of tears.

It seems difficult for others to understand, but I am afraid that only these old professors, who have also worked hard in the institute all their lives, trying to hold up a strong umbrella for the sky of the republic, can understand.

"Teacher, don't get excited, your health is not good." Another professor, who was younger, but also in his fifties, hurriedly spoke.

"Yes, Lao Li, don't get excited, we old guys still want to see this engine installed on the war eagle of our motherland in person." Professor Qian also hurriedly spoke.

"Can I not get excited? How many years? Back then, we bought the technology back from the former Soviet Union, and the engine we built had a life of only 300 hours! 300 hours! You must know that all the expenses of that era were saved by countless people who were frugal and saved a little bit! ”

"But we couldn't even extend the life of the engine, at that time an engine in the United States could have more than 5,000 hours, and we only had 300 hours! It's almost one-twentieth of people's homes! ”

"A fighter barely flies long, and we have to replace the engine, until finally we extend this life to 800 hours."

"But even if it was only 800 hours, we had to mass-produce it when our country's economy was so sluggish! Isn't it to hold up a safe sky for our land? Today we finally caught up...... Caught up with ...... I thought I wouldn't see it before I died. Professor Li said as he burst into tears.

A girl in her twenties on the other side of the screen was silently wiping Professor Li's tears with a handkerchief.

"Xiao Jiang." Professor Qian and several other professors also heard some red circles in their eyes, but they were okay and could bear it.

"I'm here." Jiang Yanhai hurriedly stood upright.

"Well done, well done! Where do you do this test? If there is no place to test, come to the research institute here in Taihang. Professor Qian said directly.

"There are places for other tests, but we don't have a high-altitude test bench, so we may really need to go to Taihang." Jiang Yanhai did not hesitate, but spoke directly.

"If there's a finished product, send it right away, and I'll let the other engines make way for you." Professor Qian said categorically.