"Yes!" Jiang Yanhai agreed directly, he was not hypocritical.

The reason is very simple, other engines, WS series engines should have been finalized a long time ago, and what was done before was only the replacement of materials.

The tests that should be done for these engines have already been done, and as for some other detailed tests, they are not important, at least not as important as the ones in Jiang Yanhai's hands.

"But there's one thing I need to explain first." Jiang Yanhai said.

"You say." Several of the old professors looked at him.

"The design of the whole engine adopts another design scheme, so it uses conventional ordinary aviation fuel, the maximum thrust is only 177 kN, and the intermediate thrust is only 152 kN, and its current data is with a new type of aviation fuel specially formulated by me."

"New jet fuel?" Several old professors were stunned, although the 177 thousand Nius and 152 thousand Nius that Jiang Yanhai said were actually enough to be amazing, but as they saw before, this number naturally everyone didn't want.

"Is this jet fuel expensive?" One of the professors immediately asked.

"It's not expensive, it's actually about the same as the current price of aviation fuel, and the price of a ton up and down is estimated to be a few hundred, mainly because it needs new additives and different formulas, so if you use it, the fighter jet refueling may have to be separated from the previous one." Jiang Yanhai explained.

Hearing that it was just this problem, and that the cost had not increased much, all the professors immediately breathed a sigh of relief.

"This is not a problem, as long as you pay attention to one point in logistics, this is completely disproportionate to the combat effectiveness it can form, and this small flaw can be tolerated." The other professor immediately spoke.

"Then there are no other problems." Jiang Yanhai nodded.

"I heard you're going to design your own fighter?" Professor Qian remembered something again and asked again.

"Yes, I wanted to design a stealth fighter by myself, in fact, from the beginning, to the size and specifications of this engine, performance parameters, including aviation fuel, I designed it for this new fighter." Jiang Yanhai nodded directly.

There was some incredulity on all the professors, even though all fighter jets were designed by giving a fighter performance data and then trying to figure out how to design it.

However, when the data of this fighter was given at the beginning of the design, it was also based on the actual situation, considering the overall manufacturing level, research and development level of the entire country, etc., and then the performance parameters were given, and then the design was carried out.

It was the first time they had heard that someone had first specified the metamorphosis data of this stealth fighter, and then in order to achieve such data, they would develop engines, and even develop new formula materials and new aviation fuel, in order to achieve the data of this stealth fighter.

The key is...... From the data of this engine, you can understand how perverted the data of the stealth fighter that this kid originally planned to develop is.

Could it be ...... This is the difference between a genius and an ordinary person designing things?

"Well, boy, I take the liberty of asking, what is the maximum speed of this stealth engine you are going to design?" Liu Lao over there didn't hold back, he was a professional fighter jet, this kid was going to be a stealth fighter, and it was estimated to be a double-engine heavy stealth fighter.

Single-engine thrust 27 tons...... A heavy stealth fighter propelled by twin engines with 54 tons of thrust, how can this speed be slow.

"Limit speed Mach 4! The regular cruising limit speed is Mach 3. Jiang Yanhai didn't hide it.

"Poof......" Liu Lao was choked again.

Conventional cruising speeds are Mach 3??? Boy, you really dare to think about it!

The problem is that this kid even got the engine out for this number, and according to this thrust, if the weight of the fighter he designed is about the same as that of the J20, there is no problem in reaching this speed.

"Boy, you know what? Reaching this speed isn't just a problem with the engine. Liu Lao couldn't help but speak again, this is his essential work, of course he knows what the point is.

"I knew that thermal barriers were a huge problem, so I developed a new type of super-strong stealth composite material myself! According to my idea, about 70% of the material of the body will be made of this composite material, so that its stealth ability is almost impossible for even meter-wave radar to detect. ”

In addition, while maintaining the size of the J20, the empty weight can be reduced to about 15 tons. But the strength of its material allows it to withstand the high temperatures of hundreds of degrees Celsius rubbing against the air. ”

"However, the difficulty of making this composite material is a bit large, and the estimated cost is a bit high." Jiang Yanhai knew that this was an opportunity, one of these old professors here was counted as one, and their words were very effective.

All Professors: "......" Everyone's face was a little weird.

"You've got it all right?" Liu Lao's tone was weird, and now he didn't dare to despise this kid, because all the things this kid had said so far had come true!

"Hmmm! There are two types in total, one for magnetic loss stealth coatings and one for structural stealth composites. Paint is easy to say, but this composite material is difficult. Jiang Yanhai nodded directly.

"You kid...... No wonder you want to show me the J20's internal circuit design, okay...... You're amazing! That way, if you don't mind if you do have a blueprint, we old guys will give you a hand. Liu Lao spoke directly.

"This ...... How can this be. Jiang Yanhai was taken aback, what are you kidding, one of them is counted as one, and it can be said that it is at the level of the ancestor in academics, let them give themselves a hand?

Then you can't be sprayed to death by the people in the circle?!

"Why not?" Professor Li asked rhetorically.

"You are all respected seniors...... Jiang Yanhai immediately spoke.

It's just that before he finished speaking, he was directly interrupted by Professor Li.

"Boy, there is a specialization in the art industry, there is a precedence in hearing the Tao, there is no elder and younger, the master is the first, and there must be my teacher in the threesome. You haven't heard these words, have you? ”

"Yes." Jiang Yanhai took a deep breath before speaking.

"Okay, then don't talk nonsense, we people give you a hand, since you have confidence, then hand over to us what you have designed at the moment, designing a fighter is a systematic project, and we old guys still have some face in the industry...... By the way, did you come up with a name for the fighter you were going to design? Professor Li asked.

"It's up, Phantom." Jiang Yanhai said seriously.

"Good name! Then you are the chief designer of this Phantom fighter! There's nothing to be embarrassed about, we can still command some people, since you have confidence, let's get it out together, whether it can work or not, don't you know? You have the courage, the determination, the action, do we old guys still care about some reputation? Professor Li's old voice was loud.

Jiang Yanhai was silent, what is the backbone of the republic?! That's it!