Now that he understands the reason for this, Yang Hui can say what he thinks.

"It turns out that this is the case, I can see the two monitors of the Blue Fox radar on the new aircraft, and don't install the others on it, even if you can install two displays, it will be good, we still take it step by step, and the training aircraft still shouldn't change too much with the J-7."

Yang Hui's simple idea shows the essence, and now the research is always just a training machine, and doing his job well is the most important thing. As for the plan to change to a fighter plane, which is optimistic about all sides, there is no accurate letter yet, so don't think too much about it.

Chief Master Yu was very happy to hear that Yang Hui's thoughts coincided with his own, but considering the important position of Tu Jida and he couldn't ignore it, this was sad for Chief Master Yu, so he simply said it now and discussed it with Yang Hui.

"What you said is very similar to my idea, but Tu Jida is the chief engineer of the research and development of the cockpit avionics system, and we still have to consider his suggestion, what do you think of this?"

How. What to do? In short. Yang Hui subconsciously thought about this, one flat and three down is the mainstream in the future, the United States F18 in the seventies has achieved one flat and three down, constituting a comprehensive electronic display system, the first time to fully realize the concept of 'glass cockpit', which is a sign that the cathode ray tube has entered the era of integrated systematization.

Equipped with multi-function displays, this is the general trend in the future, if you want to occupy a place in the future military aircraft research and development, this multi-function display technology can not be without. So this multi-function display can not be developed.

"There is actually nothing to dwell on this problem, as long as we have money, then this display project must be done, not only to do it, but also to go deep into it, to catch up with the mainstream of the world, we must be ready to study multi-function displays."

To realize the multi-function display, this is not a single display problem, but also to study the data bus technology, the need for a powerful on-board computer, only with these can the cockpit glass can be realized. To put it bluntly, in order to realize the different conversion and display of information required by a monitor, it is mainly necessary to rely on the on-board computer. as well as data buses, and other electronic technologies.

This is not simply by the aviation industry can be done, at this time the electronics industry is the development of the short board, the current domestic electronics industry to develop a high-performance airborne computer that meets the requirements, Yang Hui does not report too much hope, this really needs too much support, the most important military computer chip at this time can not be taken out at all, only the state to support the electronics industry is possible.

Then at this time, it has fallen into a dead end, and it is necessary to have a chip industry in order to realize the independent development of a comprehensive electronic display system. The chip industry, this is a bottomless pit, Yang Hui is not a god, he doesn't understand the chip.

Integrated electronic display system, thinking of this, Chief Engineer Yu fell into deep thoughts, this is not a simple aviation industry problem. "What you said, I don't know, but we can't afford to develop this project, to achieve this, we need high-performance airborne computers, high-performance airborne counting machines need high-performance military chips, high-performance military chips are needed"

With a long sigh, the development of chip things is a gold-swallowing monster, and it is completely impossible for the country to invest in chips now, or wait slowly, but it is really not possible to hoard more imported chips before 89.

This is a big shortcoming, which is beyond Yang Hui's reach: "Okay, we can only study this in advance, and in terms of our actual situation, we can only use the backward instrument cockpit." ”

Shaking his head, Yang Hui finally felt helplessness and sadness in this era. In the future, there are still several domestic self-developed military chips, and now there is no hope at all.

Cleaning up the mood Yang Hui doesn't want to do this, without a comprehensive electronic display system, it is not impossible to make an airplane, but the performance of some parts of the aircraft is lagging behind, which can be tolerated temporarily.

"Yang Hui, don't think about it so much, now you have to do a pneumatic test, this is your job, go to bed now."

When he got up early in the morning, Chief Master Yu didn't see Yang Hui again, and at this time Yang Hui had already gotten up and went to Beihang, where the violent wind could make Yang Hui's heart calmer.

"Professor Zhu, I'm here, the wind tunnel test is what needs manpower now, I don't know where the project is going now, I can still play some role."

Open the data cabinet and show Yang Hui the aerodynamic test data that Yang Hui did after leaving the past few days, it seems that the data is just these few thin copies, but the data of the test for these data is much more than this. This data, which may seem unneeded for the time being, is actually the substance, and it will have its own place at some point in the future.

"So fast? The air intake needs to be tested, and the tests done in the low-speed wind tunnel have been tested, which is very efficient, and it seems that this has been tested to the nose radome. ”

Professor Zhu was very proud to hear this, and the main reason for being able to complete the test so quickly was that a group of undergraduates had been introduced again, and the technical ability of this group of undergraduates was quite good.

"This is still the suggestion you made last time, we introduced a group of undergraduates to join, although they are not as good as graduate students in terms of quality, but they can still have a role in quantity, and a lot of simple theoretical analysis is handed over to them."

Not to mention this, Yang Hui hadn't thought of it yet, but as soon as he said this, Yang Hui remembered that he still had a difficult task: to cut off the beard, to intercept the beard of Fengtian. Looking at the progress of this experiment now, there is not much time in the imperial capital, and the plan to cut off the beard will start immediately.

If you want to cut off your beard, you must quickly cultivate your feelings and exert the influence of the base: "Okay, let's not talk more, it's time to go to work." ”

The follow-up test personnel have arrived, and the wind tunnel test will be started directly, and the theoretical analysis and model have been done, and we can start the test as soon as we come today.

The test of the nose radome should be the simplest test, the radome is a simple round cone, the test is to find out the best shape, to achieve the balance of force, heat and other aspects.

When it comes to the nose radome, this is actually a big shortcoming of the republic at this time, and the manufacturing technology of the radome is not simple at all, not that you can just make a shell and install it.

The radome, as the name suggests, is a cover on the outside of the radar, and the use of radar is to use the radar wave as the medium, so the problem is that the radome of different materials has different degrees of weakening of the radar wave.

Therefore, there will be a big difference between the radome with excellent performance and the radome with average performance, and the radome with relatively good performance is the composite material, and the composite material is not too much domestic research, but it is still in the second echelon, and when the time comes, whether it is introduced or developed by itself, it is feasible.

At the time of Yang Hui's 'cranky thinking', the wind tunnel was already running. The main test of the radome test is at the stage of transonic speed, when breaking through the sound barrier is the focus of the test, there are not many test items in the current low-speed wind tunnel, and the wind resistance of the radome is actually not much different at low speed.

After nearly 10 minutes of cool 'breeze', the loud noise in the wind tunnel gradually decreased, which meant that the test was over.

The test data needs to be processed slowly at a later stage, and now it is time to start testing the last low-speed wind tunnel test project'Double delta wing airfoil' Double delta wing airfoil has excellent low-speed performance, but to test the most suitable airfoil, it is necessary to test different sweep angles.

There are nearly a dozen wings with different details, which are actually relatively few, mainly because of the domestic research foundation, and now these more than ten wings are selected on the basis of other wind tunnel tests in front. (To be continued.) )