Genius is just the threshold for me!

Chapter 116 Major Issues of the Emei Project

The next morning.

Sunlight had just pierced through the thin mist and was shining on the laboratory windowpanes.

After finishing breakfast, Lin Dong came to Laboratory 78 to check the test flight data of the Hot Spicy aircraft from yesterday, as well as the reports reviewed by Wang Xingguo and the others.

After reviewing the data, I'm now preparing to optimize it.

Just then, a burst of cheerful laughter rang out from outside.

Wang Xingguo walked in carrying a thick file bag, his face beaming. Crinkles appeared at the corners of his eyes as he said with delight, "Hahaha... Xiao Dong, the preliminary medical report for the F-35 Lightning fighter jet last night is very good."

We quickly found solutions and approaches to several key challenges in the field of carrier-based aircraft in China.

It was that old guy Yuan Li from Shenyang Aircraft Corporation. After landing and finding out that we had shot down that fighter jet, he didn't smile for a single night. That old guy, he's just not a smiley person.

"Is your godfather still keeping an eye on things over there?"

When Lin Dong heard that Chief Engineer Yuan Li was naturally not fond of smiling, he couldn't help but laugh.

As a family member of Chengdu Aircraft Industry Group (CAC), Lin Dong naturally knew a thing or two about the competition between CAC and Shenyang Aircraft Corporation (SAC), two of the top domestic aircraft and military industrial enterprises.

Before the J-20 was successfully developed and completed its maiden flight, Shenyang Aircraft Corporation (SAC) had a wealth of resources thanks to the legacy of its older brother, Chengdu Aircraft Corporation (CAC), and was in a superior position in many aspects.

However, with the successful maiden flight of the J-20 fighter jet, Chengdu Aircraft Industry Group (CAC) secured the top spot in China's military aircraft industry overnight, thanks to its status as the country's first fifth-generation fighter jet.

It is said that...

When the core chief engineers at Shenyang Aircraft Corporation learned of this news, they slammed their fists on the table for several days, loudly announcing that the J-15 would be deployed on aircraft carriers within a certain number of years, and that the J-35, also known as the Yunlong fighter jet, would be developed and mastered within a certain number of years.

Shenyang Aircraft Corporation (SAC) focuses more on the development of carrier-based aircraft, while Chengdu Aircraft Corporation (CAC) mainly focuses on the development of conventional high-thrust large fighter jets.

Chengdu Aircraft Industry Group (CAC) did not participate in this F-35 Lightning fighter jet incident; instead, headquarters notified Shenyang Aircraft Corporation (SAC) to send someone to conduct a medical examination.

But it seems that Shenyang Aircraft Corporation (SAC) is not very happy with the F-35 fighter jets shot down by Chengdu Aircraft Industry Group (CAC).

"That's for sure."

"Carrier-based aircraft are the core of our country's strategy, so we naturally pay attention to their progress. Sometimes, Shenyang Aircraft Corporation also discusses some difficult problems with us."

Wang Xingguo smiled and said without the slightest embarrassment, "It was just yesterday when I was reporting to headquarters, I mentioned it briefly and asked them to inform those old guys like Yuan Li."

Don't tell them that the F-35 was shot down by Chengdu Aircraft Industry Group. Just wait and see their reaction when they land and find out the truth.

"..."

Lin Dong looked at Wang Xingguo, who was in a good mood, shook his head, and ignored their generation's usual petty squabbles.

"Are there any problems with the test flight data for this 'Hot' aircraft?"

Wang Xingguo said a few words, but didn't continue talking about Shenfei. Looking at the flight data on the screen, he said, "Yesterday, your dad, Engineer Xu, and I checked it together."

Aside from the engine being slightly overloaded and the materials not quite reaching their limits, no problems or stress concentration points were found in the overall fuselage structure.

"The device itself is fine; it's just that the optical recognition algorithm needs some optimization. I'll be back soon after that."

Lin Dong explained simply: "The sea surface has a high solar reflectivity, high water vapor content, and stronger atmospheric refraction, which will slightly affect the recognition rate of the previous algorithm."

"That's fine then."

Wang Xingguo nodded and picked up the file bag he had brought: "The core data of the Emei WS-15 project. The overall engine design demonstration has been completed. 624 and 606 are ready to proceed to the next physical design phase."

"Is the progress so fast?"

Lin Dong looked somewhat surprised, took the file bag, pulled out the documents inside, and quickly looked through them page by page.

Ok?

After reading only a little over half of it, Lin Dong frowned and then sped up the page-turning speed.

After reading the last page, Lin Dong stuffed the document back in and shook his head at Wang Xingguo.

There's a problem.

"Is there a problem?"

Wang Xingguo was startled. His excited expression vanished, and he widened his eyes, saying, "No problem!"

Teams 624 and 606 have done the calculations many times, and I've done them myself... We still can't find any problems with this design!"

"There is a problem."

Lin Dong nodded and affirmed, "This plan is too conservative."

"Too conservative?" Wang Xingguo frowned, his brow furrowing into a knot.

"Yes, that's too conservative."

Lin Dong handed the file bag back to Wang Xingguo and said seriously, "The WS-15 is a large engine with high thrust, not a small or medium thrust engine."

If we continue designing according to these parameters, the difficulty will be much lower, the progress will be much faster, and the static thrust will be fine in ground testing.

However, during high-altitude testing, the dynamic thrust will almost certainly fail to meet the standard, and it will be a serious failure.

"By then, what you'll have built will be a bloated WS-15 turbofan engine; it looks impressive on the ground, but it'll be a complete rip-off in the air."

There are two metrics for the thrust of a jet engine: one is the static thrust on the ground, and the other is the dynamic thrust during flight.

Under normal circumstances, the dynamic thrust of an engine is less than its static thrust, but this attenuation range follows a certain pattern and will not be too extreme.

Because the drag is reduced when the fighter jet is flying, even if the thrust is reduced to some extent, it can still meet the needs of the fighter jet during flight.

However, if the design is flawed and the dynamic thrust decreases too much, the fighter jet will have problems and will just roar without moving when it takes off.

"That bad?"

At this, Wang Xingguo's face turned extremely ugly, and his fingers holding the file bag trembled slightly.

According to Lin Dong, problems won't be discovered in the early stages. On the contrary, things will go smoothly because the difficulty is reduced. The problems will only be exposed when the dynamic thrust is tested at high altitude.

But by then, it was too late.

Because of the entire engine design time, manufacturing and assembly time, plus multiple rounds of testing, it will take at least two to two and a half years in total.

Two and a half years later, the entire design scheme was scrapped and rebuilt.

Putting aside the effort and resources wasted, the key issue is the time lost and the impact on the entire strategic layout, which is the fatal disaster.

"It's even worse than that."

Lin Dong nodded, sighed, and said, "Redesign it. Be bolder and more proactive in your approach. Don't be so conservative... This is a necessary step in our first independent, forward-developed project."

At this time.

Lin Dong finally understood why the WS-15 engine was developed so many years later than the J-20 fighter jet in his previous life, and why the J-20A was developed so late.

Based on the reasoning from today's plan.

The first-generation WS-15 turbofan engine will most likely undergo high-altitude testing around 2014 to 2015, only to find that its dynamic thrust is severely insufficient, ultimately forcing the entire design to be scrapped and the process to start over.

The team restructuring, the blow to confidence, and the time spent on redevelopment all happened in between...

This ultimately resulted in the J-20A not making its official debut until 2025, fourteen years after the J-20's successful maiden flight.

of course.

This can be considered an essential step in the forward development of high-thrust engines, a path of confidence in overcoming challenges.

As the first domestically developed engine, the WS-15 is different from the previously developed WS-10 and WS-14 engines.

The WS-10 and WS-14 engines all referenced foreign engine designs.

Only the WS-15 turbofan engine from the Emei project has no foreign technology to refer to; it is a high-thrust engine that is completely independently developed and developed domestically.

However, because this was their first time conducting forward development, the designers were unsure and lacked confidence, so they set the parameters too conservatively...