The technical data of the side plate has long been studied and lived, and now all the data that have been sorted out are taken out, and the total number of zero and zero always looks very realistic, and the weight of the data should be calculated in kilograms, but fortunately, it is relatively simple and clear after systematic research and sorting.

Although they had a preconceived idea that the side plate technology was ugly at the beginning, after reading these materials, the research team already had their own ideas in their hearts.

The data on the various data in detail proves that the side plate technology is indeed a feasible good thing, these information to say that it is absolutely impossible to falsify, the project is not only signed by the Southwest Science and Industry Pneumatic Technology Research Personnel, but also the Republic of China is responsible for the wind tunnel test of scientific researchers.

These unmistakably point to a new way, using side plate technology instead of electric drive flight control, so as to achieve low cost but also allow the aircraft to ensure that the original maneuverability is not reduced too much.

"In this way, the side plate technology can indeed solve the aerodynamic defects of the large side strip wing and replace some of the capabilities of the fly-by-wire flight controller, but the fly-by-wire flight control technology in the YZ1 demonstrator does not only play a simple role in stabilizing, it can also effectively reduce the burden on the pilot and liberate the pilot from heavy flight tasks."

The benefits of fly-by-wire flight control technology are many, not only in that it can provide better flight quality, can effectively compensate for aerodynamic defects, but also can rely on the low-level intelligence of the on-board computer to carry out some tedious and relatively simple flight maneuvers.

On the other hand, it is due to the advantages of the transmission nature of the fly-by-wire system itself, which translates the mechanical signal of the pilot acting on the joystick into a telegraph signal, and then transmits it through a cable. Finally, the motor performs the action to complete the control of the aircraft. This eliminates the need for hydraulic transmissions, hydraulic pipelines, and so on

At the same time, these bulky mechanical devices can be rectified, and the problem of pneumatic compensation can be effectively solved.

In the old mechanical operating system, in order to compensate for the hinge moment of the movable wing surface. Reduce the amount of effort necessary for pilots to operate the aircraft and conserve physical strength to the greatest extent.

This requires the installation of pneumatic compensation devices on each movable wing surface, after the use of fly-by-wire system, there is no need for these so-called pneumatic compensation devices, and it can be done directly through the output of greater torque by the motor that executes the pilot's command, and there is no direct rigid connection between the joystick and the final actuator, so there is no need for more force.

Even after using the fly-by-wire flight controller, as long as you want, you can design the joystick to complete the pull and push stroke with a flick of your fingers. In this case, the flight is really labor-saving to the extreme, and the hinge torque of the aerodynamic rudder surface is no longer a major difficulty for the pilot to overcome.

Don't underestimate this design, it seems that there is not much saving on physical strength, but if it is really an aircraft that is going to do a long-distance attack, then just fighting against the hinge moment along the way can consume a lot of physical strength of the pilot, what should I do when I am really fighting? Even if this problem is solved by starting compensation, the pilot saves physical strength, but the bulky compensation device is not light at all.

With fly-by-wire flight control, these problems can be easily solved. Therefore, it is not unreasonable to say that fly-by-wire flight control is popular, and Yang Hui also knows this, but there is no way to do it now. Then we can only sacrifice it.

"For the other advantages brought by fly-by-wire flight control, we can't come up with a good alternative solution now, and the automatic flight of the route can only be done through the autopilot alone. The mechanical control device and pneumatic compensation device can only be the old-fashioned mechanical scheme of the J-74. ”

That's the low-cost solution, no matter whenever. The basic principle of getting what you pay for must be implemented, and the added weight of these old-fashioned mechanisms is not unacceptable.

The first thing is the mechanical control system. To be clear, even with the three-axis four-redundant digital fly-by-wire flight controller, the mechanical control system is still impossible to dismantle, and this thing is the last set of life-saving talismans of the aircraft.

When the fly-by-wire flight controller fails, or the on-board computer crashes, it is necessary to rely on the mechanical operating system to survive and return to the airport, which is the practice of international aircraft design, and everyone designs it this way, which must be reasonable.

Therefore, the dead weight of the mechanical control system is still to be carried, that is, in the actual situation, the weight reduction of the fly-by-wire flight controller on the aircraft is not too obvious.

Pneumatic compensation of these dead weight is absolutely unsolvable, since there is no fly-by-wire flight control to save money, then carry these weights, fortunately after the calculation of these weights by Southwest science and technology technicians, it is found that it is still acceptable.

"Overall, if we abandon the use of fly-by-wire flight control system, we will increase the weight by about 100KG, which is the data after adding the weight of the side panels, and if the army can accept this, we will be able to continue the YZ1 project with the side panels!"

This is how to do industrial design, you can't cut corners at all, and all aspects are rigorous, especially the design of the aircraft that must be strictly controlled for every kilogram of weight, Yang Hui must be more truth-seeking and say the advantages and disadvantages.

Seeing that Yang Hui had finished talking about all the advantages and disadvantages, the two research teams were silent, and giving up the fly-by-wire flight control could reduce the cost by nearly 10 million yuan, and the price to be paid was to increase the weight of the aircraft by 100KG, which can still be thought of.

In the past, in order to use a new type of missile, the nose of the Jian-7 was increased by 120kg, and the current army must still be able to accept this kind of thing.

The Air Force Research Group has just come from the 0611 Institute, and there is an aircraft that overlaps with the No. 10 Project under development of the 0611 Institute, and the Air Force naturally still has to study and compare again, and always have to shop around.

"I think this aircraft can be regarded as a third-generation fighter in terms of maneuvering, so which is better or worse than the No. 10 project of the 0611 Institute, which is what our research team is concerned about?"

came,After all, I asked Yang Hui the least wanted to answer,The relationship between Southwest Science and Industry and 0611、0132 is definitely very good,If you want to compare the YZ1 verification machine and the No. 10 project,This is definitely a battle between two tigers。

In Yang Hui's view, the No. 10 project is definitely a little bit higher than the side plate YZ1 in any aspect, plus the 0611 will be through the technical accumulation of the No. 10 project, to the whole No. 20 project, it can be said that this is a real sustainable development road, Yang Hui is absolutely unwilling to use YZ1, an aircraft with no follow-up development potential, to ruin the future of 0611.

"To be honest, our side plate YZ1 must be worse than the No. 10 project in terms of performance, and the side plate YZ1 can only be regarded as just crossing the threshold of the third-generation fighter, and its advantage is probably the side plate YZ1 that is extremely cost-effective, and it can be put into service faster!"

When Yang Hui himself admitted that the side plate YZ1 project was not as good as the No. 10 project, the research team fell into deep contemplation, both projects have great temptation, one is firmly based on the current needs of the army, and the other is an important part of the future development of the army.

It can really be said that the palms and backs of the hands are full of meat, and this situation is actually quite similar to the battle of the previous high-level trainer of the Republic, which is also the same choice as now.

On the one hand, it is one of the world's leading advanced advanced training aircraft, but due to various reasons, it cannot be quickly put into service, and the cost is relatively high (L15), and the other side is completely based on the actual situation of the army's urgent need to replace the generation of senior trainers, and has developed a completely independent production, and low price, that is, the performance is not very advanced and can be used (Mountain Eagle training aircraft).

Finally, considering that the trainer aircraft is not a combat aircraft, as well as various factors such as price, time, and localization, the army chose the Shanying trainer aircraft, which is a typical case of aiming at market development and finally succeeding.

The only thing to be thankful for is that at that time, the Republic was already wealthy, and while purchasing Mountain Eagle training aircraft, it continued the development of L15, and soon after L15 won overseas orders, which was a great joy for everyone.

So between the current side panel YZ1 and Project 10, how do the Navy and Air Force choose? Whether it is the future or the present, or a happy ending, it all depends on the subsequent development.

After listening carefully to Yang Hui's report, before leaving, the research team also got the cost budget of the low-cost side plate YZ1 given by Southwest Science and Industry: between 20 million and 25 million yuan, the entire project is independent, and even the radar is ready to install the third-generation light fighter fire control radar newly put on the agenda by the Changhong Factory.

In the past few years, the Changhong factory has been developing rapidly, relying on the civilian market to live and be extremely nourishing, and the profits of civilian products are fed, plus there are already Blue Fox radar orders continue to come, as well as the most important AWG-9 radar reverse reference.

The Changhong Factory, which is full of confidence, has decided to maintain its ability to produce airborne radars, and the military factory cannot completely switch to the production of famous products, and it can still say in a dignified manner when it goes out: Our Changhong Factory is both military and civilian. (To be continued.) )