Li Shuguang didn't have much time, so he agreed, but in fact he didn't have much time to spend with Mr. Nie. Mr. Nie also knew this.

Not long after, Li Shuguang was going to the Western Aviation City again. This time it was the J-H-7 fighter jet designed and developed by XAC and the 603 Research Institute. It was about to undergo a design review. As the proposer of the improvement plan for the J-H-7 fighter jet,

Li Shuguang had to go. As the top aviation expert and a member of this review panel, he had to go too.

The current J-H-7 is very different from the original one, just like the changes in the J-7 III. If the original J-H-7 design still has a lot of second-generation aircraft technology, then now it is completely

Third generation machine technology.

Whether it is the engine or the avionics system, the aerodynamic design is that of a standard third-generation aircraft. However, it is not an air superiority fighter, but a fighter-bomber focused on ground-to-sea strikes. The performance of the new J-H-7 can be said to be only

It is stronger than fighter-bombers such as the Su 24 and the Tornado fighter.

Let’s talk about the engine first. The new J-H-7 is equipped with two advanced medium-thrust turbofan engines. The original design was the Spey MK202 engine, which is the first generation of turbofan engines and its performance is lagging behind.

The current advanced mid-engine thruster is also a plan designed by Li Shuguang. The maximum afterburning thrust reaches 95,000 N. Not only is the thrust and thrust-to-weight ratio greater, but it is also superior in terms of fuel consumption, acceleration performance, high-altitude performance, etc.

It has reached the level of engines like F414.

You must know that the development of the F414 engine has not yet begun. Hornet fighter jets are equipped with F404 engines. This engine lags behind the JH-7 engine.

As for the RB199 turbofan engine equipped on the Tornado fighter, the thrust is much smaller, with an afterburner thrust of only 73,000 N, while the domestic mid-range thrust of the J-H-7 is 95,000 N.

Therefore, the maximum take-off weight of the J-H-7 fighter is 29 tons, which is close to that of a heavy fighter-bomber, while the Guangfeng is only 27 tons. The bomb load of both is nine tons, but it is obvious that the J-H-7 has greater advantages in combat.

The radius is larger than that of Tornado, because it has more internal fuel and can complete long-range missions without relying on external auxiliary fuel tanks. However, to complete the same mission, Tornado requires the attachment of auxiliary fuel tanks, which affects the actual bomb load.

In terms of avionics systems, the JH-7 has the advantage of being a latecomer, with many new technologies being used.

This time the military attaches great importance to the review of the JH-7 fighter jets, and will send dozens of experts to XAC and the 603rd Institute to complete this review.

Time waits for no one. The surrounding situation is very serious now. The Chinese Air Force and Naval Air Force do not yet have long-range combat capabilities. They are waiting for the JH-7 fighter jets to enter service. It will not take a day or two to form combat effectiveness.

The arrival of Li Shuguang has made the entire No. 603 Institute and Xifei shine brightly. Everyone is very enthusiastic about Li Shuguang. After all, without Li Shuguang, the J-H-7 would definitely not be loved by his uncle or old man.

, after all, the performance is too lagging.

Things are different now. The military has high hopes for the JH-7. It will be the main ground-to-sea combat equipment for the navy and air force aviation in the future.

The design of the J-H-7 also used advanced computer assistance, so it was possible to complete the detailed design work so efficiently. After Li Shuguang came, he conducted a quick review of these design materials. Although it was said to be fast

I took a quick look at it, but Li Shuguang was still very good at finding some hidden problems. The designers took the time to remedy them, so that they would be more confident during the review.

Master Chen was extremely frightened. He didn't expect that there were still some problems. After Li Shuguang's remedy, there was no problem, but he felt a little embarrassed.

Time was very tight. When the expert team arrived at the 603 Institute, all preparations were in place, and the experts were very satisfied with it.

After all, the JH-7 is not comparable to second-generation and semi-fighters such as the J-7 III and J-8 III. It is a true third-generation aircraft. It can be said to be the first third-generation aircraft independently designed and developed by China. Although it is positioned as a combat aircraft

Bombers focus on the ground and the sea, but everyone knows that the current J-H-7 also has good air combat capabilities, the ability to conduct beyond-visual-range air combat, and good maneuverability. In close combat, it may not necessarily be able to do so.

Suffer.

The experts simply summed it up and started reviewing the design materials according to the process.

There is a lot of design information for such an advanced fighter jet. If it were not computer-aided design, it would have to be completely hand-drawn, and the drawings would probably cost dozens of tons.

Now experts really believe that the JH-7 has been completely transformed. Compared with the original design, it is indeed a huge difference. From a second-and-a-half-generation aircraft to a true third-generation aircraft, this is the same as changing from a second-generation aircraft to a second-and-a-half-generation aircraft.

It’s different. After all, this generation gap cannot be made up by just a few improvements.

The JH-7 now adopts a dual vertical tail design, and the two vertical tails are tilted outward. The benefits of this design are obvious, with high aerodynamic efficiency and a smaller radar reflection area.

The main wing is also very different from the original. Not only is it equipped with motorized flaps, but the airfoil shape of the wing has also been changed.

There is also an airborne fire control radar, which is much more advanced than the original plan. It not only has a longer detection range, reaching 130 kilometers, but also has automatic terrain tracking capabilities, and can conduct fire at high subsonic speeds at an altitude of fifty meters.

Flight is crucial for a fighter-bomber, because ultra-low-altitude penetration is the most effective means of penetration for non-stealthy fighter-bombers when attacking the ground.

Experts completely believe that the JH-7 is better than the Tornado fighter. As for fighter-bombers such as the Su-24 and MiG-27, they only have variable sweep wings and are not worth mentioning in other aspects.

, especially the avionics system.

Although the work of the experts was tiring, they were very happy and gained a lot. Ten days later, the review work was successfully completed. Mr. Li, the leader of the expert team, announced the results of the review on behalf of the experts. The J-H-7 design achieved a perfect score and passed smoothly.

After review, it can be transferred to the prototype manufacturing stage.

The military is very satisfied. This result is actually expected. After all, with Li Shuguang's technical guidance, if the 603 Institute still can't do the design work well, it will have to take the blame.

Master Chen was relieved. He had been worried the whole time, what if he failed the review?
Chapter completed!