When they arrived at the semi-buried hangar, Li Hai discovered that two big guys, Zhu Wei and Luo Xun, were already here, chatting under the nose of the J-15 numbered 581.
Li Hai could tell at a glance that these J-15s were different from the ones he had flown before. Even their appearance looked much smoother.
"Did you see it?" Zhu Wei asked with a smile.
Li Hai nodded and said, "Is this the new batch?"
Mao Lele looked left and right, but he couldn't see any changes in the No. 581 J-15.
"This is a Type B test machine. There are four of them in total. We all have special planes." Zhu Wei said with a smile.
Li Hai looked at the new J-15 painted in shit yellow and asked with a smile, "It has not yet been finalized. The manufacturer is so generous this time and only takes out four of them at once?"
Luo Xun smiled and said, "Headquarters is not satisfied with the performance of Type A, and the manufacturers are also anxious. If we give them a few more tests, they can finalize it earlier, mass produce it earlier, and deliver it earlier. Otherwise, they won't even be able to recover the research and development costs."
"The headquarters has good calculations." Li Hai nodded with a smile.
Mao Lele listened to their conversation and felt confused, with doubts on his face. Seeing that the three seniors had no intention of explaining, he was too embarrassed to ask.
At this moment, a senior colonel and a middle-aged man strode over.
"Xiao Ming, the representative stationed at the manufacturer." Zhu Wei introduced the senior colonel, and then shook hands with the middle-aged man, "Easy, the chief engineer of the B-type project."
Yi Yi smiled and shook hands with Li Hai and others, and said, "Dear comrades, these four aircraft were built by our factory with a lot of energy and funds, a lot of hard work, and represent our factory's past 20 years."
With the accumulation of technology, you can fly with ease."
He smiled and said, "These are the only planes used for testing, and there is no need for one more. Therefore, we must be cautious and cautious. For some subjects that we are not sure about, we will proceed steadily!"
His words were full of distress, and the way he looked at the plane was almost like looking at his own children.
This is a little strange.
The aircraft used for testing must be built with great strength. No matter how ruthless it is, there will be no way to get out of the envelope and expose the hidden problems.
Xiao Ming said, "Although the appearance is similar, there are a lot of new technologies inside. Not to mention anything else, in terms of cost alone, one B-type is worth as much as three A-types."
Zhu Wei and Luo Xuan smiled and said nothing.
Li Hai was puzzled. What these two people said was a bit exaggerated. They were just improved models of the same model, so how could the cost be so different?
Xiao Ming and Yi Yi chatted with Zhu Wei and Luo Xuan for a few more words and then left.
At this time, Zhu Wei said to Li Hai and Mao Lele, "I will go back to the archives to see the performance parameters of the aircraft. I can only look at them and cannot take them out. Their manufacturer has a group of people here, and they are responsible for guaranteeing the aircraft and our test training."
The data and related situations must be reported to them."
Zhu Wei looked at Mao Lele and said, "These are all independent hangars. Lele's aircraft is 584, and your training call sign is No. 4. Go and have a look."
"Yes!" Mao Lele stood at attention, saluted, and ran away.
Zhu Wei said, "Li Hai, 583 is yours, I am 581, Luo Shun is 582, your training call sign is No. 3, go and see your aircraft."
"Yes!" Li Hai also left.
This test base is very large, with many hangars, most of which are independent and far apart. Li Hai walked more than 500 meters to his hangar, where No. 583 J-15B lay quietly
There, looking at Li Hai with a smile.
Li Hai also looked at her, with deep love in his eyes.
The pitot tube on the nose is gone, making it less sharp and more restrained. The lines from the back of the cockpit to the top of the tail of the fuselage are smoother, not much different from the A-type, but this is definitely a result of wind tunnel blowing.
Come out with the optimized results.
There are also some subtle changes in the canard, main wing, and tail. It is difficult to see without looking carefully. The most obvious point is that the wing area of the main wing seems to be smaller than that of the A-type. Obviously, this is because of the use of catapult take-off.
changes made.
The reduction in wing area will bring about a reduction in the weight of the aircraft. Don’t underestimate the weight loss of several dozen kilograms, the impact will be huge.
In general, the entire shape is slightly rounder than Type A, and the look and feel is more comfortable. Obviously, the aerodynamic layout has been deeply optimized and is not a random modification.
Another obvious change is the nose landing gear, which is thicker and more complex than the A-type. It is obviously another change to adapt to ejection take-off.
The ejection type of the J-15 has been out for a long time. It was called the J-15T at the time. However, the B type in front of us has too many changes in details from the J-15T. It is estimated that the original J-15T only had modifications to the front landing gear.
Targeted improvements have been made to use the strength during ejection take-off.
Infrared search and tracking system (IRST), telescopic fuel tube, deflectable canards, folding main wings, twelve hardpoints...two WS-10 engines.
Huh?
The engine model does not seem to be WS-10.
When Li Hai walked to the tail of the aircraft, he discovered that the engine tail nozzle was not like the WS-10 used in the A-type. The color was different, and the jagged edges of the nozzle were also different. He looked around and saw that in the hangar, except for the one responsible for guarding
Soldier, there is no one else here, so there is no place to ask.
He carefully checked the wingtips of the main wings. It was a wingtip pylon, which could be used to mount combat missiles. Only then was he sure that it was not an electronic warfare model. You know, the J-15D has also come out and is being tested intensively. The J-15D finally
The obvious appearance change is that the two wingtip pylons are replaced by electronic combat cabins, which are cylindrical and very similar to the J-16D.
With questions about the engine, Li Hai immediately went to the archives room to check the information.
After showing his identity card and going through three checks, Li Hai saw the top-secret information. The 30 centimeters thick information was obviously not all the information on the J-15B. It should be the part that was transferred for experimental training.
Turning to the power system, Li Hai saw a model he had never seen before. It was neither a vector engine nor a brand-new high-thrust model. Judging from the number, it should be an improved model. What specific changes were made? There is no detailed data.
In this document, there are only the basic parameters of the engine and other data.
The change that Li Hai can see is that the thrust of this engine is a little greater than that of the WS-10. But this change does not need to be so mysterious!
He became even more confused.
Putting aside his doubts for the time being, he turned to the fire control system, and the data inside immediately made his heart beat faster.
This is the technology of the J-20!
How did Shen Hoy apply the fire control system technology of fifth-generation aircraft to the J-15?
The overall design of the J-15 follows the T-10K-3 carrier-based fighter, that is, the Su-33. The aerodynamic shape and the fuselage structure design have not changed much. Shen Hoy was able to combine the Su-33's composite Changing the traditional transmission system to an all-electric transmission system is already a blinding eye...
Yes, there is also a transmission system.
Li Hai quickly pulled out the information on the transmission system and was dumbfounded again - this was obviously the digital fly-by-wire flight control system used by the J-10C!
Take a closer look, it’s not right!
Some parameters are different!
If Li Hai had flown a J-20, he would know that this digital fly-by-wire flight control system uses a lot of J-20 technology...
After reading the information on several major systems, Li Hai finally understood. What Chief Engineer Rong said before and what Colonel Xiao Ming said were really not an exaggeration. There is nothing left in this J-15B. The prototype looks like all the major systems have been changed beyond recognition. It’s obviously new wine in old bottles!
He has a strong sense of anticipation for flying the J-15B into the air! ()