The military-industrial scientific research system of the academic master.

"This plane..."

After staring at the screen for a long time, Sun Huizhong finally spoke again:

"I think the potential of this aircraft may not only be limited to being a training aircraft, but may also be used part-time as a light attack aircraft."

All he could think about now was finding a way to build a plane that was in greater demand.

It would be best if they could also be sold to foreign customers.

At this time, companies that can earn foreign exchange for the country can rise in status like a rocket.

In addition to being used for teaching, the two-seat fighter jet can also be used to perform operations that have nothing to do with operating the aircraft, such as searching for targets and controlling precision-guided weapons.

Although these functions can also be concentrated on a single-seat aircraft, there are still risks in allowing pilots to multitask.

Therefore, it seems to be a very good choice to let an advanced trainer aircraft with good flight performance part-time in some ground attack tasks.

After all, the cost is low.

"But after all, it is the same size as the JJ-7, so the bomb load and range may not be too optimistic..."

Another person raised his own concerns.

"It's better than the current equipment by 5, right?"

Someone immediately retorted:

"And it can also be equipped with radar and precision-guided weapons."

"What precision-guided weapons do we have now?"

"Well... there will always be..."

"..."

There was a lot of discussion around him.

"Well...actually, we can make some fine-tuning on the same platform."

As soon as Chang Haonan, who was in the middle position, spoke, the others quickly fell silent, waiting for his next words:

"For example, try to further increase the wingspan and reduce the sweep angle, so that the area of ​​the outer wing section is increased and can accommodate an additional set of fuel tanks to increase the range. Then, by installing different onboard equipment, two sub-models can be developed. Targeting customers with different needs respectively.”

"In our country, there may no longer be a need for light attack aircraft in the future, so you can purchase an advanced trainer type, which means that the rear cabin only retains higher-authority driving functions, and there is no need to install radars and mount large-size ammunition. "

"Will there be no follow-up models of Qiang 5?"

Sun Huizhong was a little surprised by this judgment:

"I have a classmate who works in Hongdu and said that they are considering a new attack aircraft project."

Chang Haonan nodded:

"Times have changed. For a big country like ours, the future will be dominated by multi-role fighter jets, with at most a few fighter-bombers included."

The positioning of the Qiang 5 is completely different from the currently common Su-25 and A10. It has no armor and poor low-speed performance. This model was designed to carry nuclear weapons to carry out low-altitude and high-speed penetration missions destined to never return.

However, due to limited technical conditions, the ammunition to go with it has never been released. The Hurricane One is actually just a nuclear trigger. Therefore, the attitude of using the remaining heat and the Army's long-term lack of dedicated armed helicopters allowed this weapon to be used. The top cylinder of the model is responsible for tasks such as close support.

At this stage that is about to enter the new century, there is no room left for light attack aircraft in the Air Force sequence.

"So, what about other than the advanced trainer type?"

Someone still brought the topic back.

"Although our country no longer needs it, some foreign users, especially users in third world countries in Asia, Africa and Latin America, their main combat targets are basically rebels or terrorist...guerrillas, so there is still a use for this kind of aircraft. On land, you can buy a combat training model, install more advanced airborne equipment in the rear cabin, such as multi-function displays, and leave two relatively large hanging points for hanging some air-to-ground missiles and the like."

"Hiss... is this possible?"

The rest of the people showed expressions of surprise or realization.

This idea was not very popular in the mid-90s, but after entering the st century, as the cost of fighter jets soared rapidly, many small countries began to consider giving up establishing an air force with air combat capabilities (it couldn't defeat it anyway, so it was better to simply Abandoned treatment), and turned to trainer/attack aircraft and integrated patrol and attack drones as the main models.

"Of course, in the next period of time, I will work with you to improve this plan and optimize the design of several key parts. When you master the design method, you can also adjust the aircraft according to actual needs and future test flights. Make subsequent adjustments.”

Chang Haonan turned around and looked at the few good seedlings sent by 648 in front of him and said.

After more than half a year of experience, he has gradually become accustomed to the computer basics of people in this era, and there will no longer be the same mistakes as when he taught Yao Mengna.

Before rebirth, all graduate students must have been quite proficient in numerical simulation and knew one or two basic programming languages.

But in 1997, most designers only had some familiarity with several common modeling and fluid calculation software. They had only read books and used them personally.

This situation will probably take another two or three years, and it will not be fundamentally relieved until the same batch of students like Chang Haonan graduate with a master's degree or a doctorate.

"We all listen to you!"

Everyone, including Sun Huizhong, instantly showed excited expressions.

We are all people who can enter the aircraft design research institute, so we naturally know the difference between a full meal and a full meal.

This kind of opportunity for a big boss to teach you how to design an airplane is not available to everyone.

Not to mention learning all the other party's abilities, even if you learn 648% to %, it is enough for to come up with some new tricks.

"Well, I have just explained the overall design of the aircraft, so let me first systematically introduce the theoretical basis and basic steps of digital design..."

In the next two hours or so, Chang Haonan gave the engineers of Institute 648 a course that was roughly equivalent to an introduction in an empty conference room with a blackboard nearby.

Fortunately, these college students who graduated in the 90s or even the late 80s have a much more solid theoretical foundation than later generations, so this aspect is not strenuous. It is just that they are similar to Lin Shikuan and others from the 601 Institute and need to change their thinking.

"Considering that everyone is still inexperienced, we still need to proceed step by step in terms of design difficulty. No matter what, we must first come up with a specific design plan as soon as possible, so that superior units and users will have confidence."

"So we can use a more traditional bulkhead air inlet in the first version of the design, and the design of the side strips and wings can also be a little more conservative. We can slowly use it after the project is actually applied for, or even after the first prototype flies for the first time. Get some more radical technology.”

After saying this, he put down the chalk with a thirsty mouth, picked up the cup and took a swig of water.

In fact, it is quite normal to use an aircraft specifically to verify a certain technology.

For example, in the United States, the technical verification of the DSI air intake was carried out on a modified F16block30.

The Soviet Union also verified the axially symmetrical appropriate number of nozzles on a modified Su-27UB.

It's just that Chang Haonan wanted to be more efficient, and in the process, he got Coach 9/FTC2000 out.

"Are you so sure that the Air Force will approve our model plan?"

Obviously some people are not confident enough. After all, 648 Institute has indeed had little successful experience in this area in the past.

"Of course, that's what I'm going to say next."

Chang Haonan turned the filled blackboard to the other side:

"In the final version of the design plan, I plan to use a boundary layer-free supersonic inlet, which is a DSI inlet."

"On the one hand, this can reduce the weight of the aircraft by about 130-150 kilograms. On the other hand, and more importantly, this project with a lower overall risk is also used for verification. If the technology is mature, it can be used in Project , or even On top of future fourth-generation fighter jets.”

"With this second reason, and the fact that the Air Force really needs a new type of advanced trainer aircraft, I think it should be a sure thing to officially determine this model."