For the Germans, three-dimensional vector thrust technology is definitely the top level of technology they can access at this time, probably knowing that with this technology, the maneuverability of the fighter will be greatly increased, but it really has to talk about how to give full play to the full performance of the vector thrust engine. Pen "Fun" Pavilion www.biquge.info

Sorry, these are all a bottleneck that can be accessed after the study of vector thrust technology to a deep level, AVIC Southwest knows this technical problem, on the one hand, Yang Hui himself knows these, on the other hand, it is the conclusion reached by the United Aero Engine Company when it conducted in-depth research on vector thrust technology.

As for these research results, perhaps the academic papers will mention only a few words, but in the nineties, it is absolutely impossible to have a large-scale research conclusion on the integrated control of fire and flight push, so MM, as a second-tier aviation manufacturer, does not know that these results that only the top first-line giants have studied for a short time is also normal.

Therefore, for the so-called integrated design of fire and flying push that Yang Hui broke out, it is something that the Germans still can't understand even if they want to break their heads, so they can only look like a curious primary school student, nodding their heads incessantly, just hoping that Yang Hui will not continue to study in this regard, or the best case is of course to explain it specifically.

Fortunately, Yang Hui is in a good mood this time, and he just feels that it is necessary to be a guinea pig with the German Yankee, and test the technology of AVIC Southwest in the field of integrated design of fire and flight push, so as to lay the foundation for the follow-up of the fourth generation aircraft of the Republic to realize the integrated design of fire and flight push, and it is considered that this time it is helping the Germans to build a technical verification machine.

"This fire flight thrust integrated control technology, that is, the fire control, flight control, engine control are all integrated design, which will achieve the simultaneous coordination of the three in the flight, to achieve the optimal control of the flight, the role is naturally the three after the combination of the three is much better than the three separately. But this also needs to be fully digitalized in flight control, fire control, and engine control, and it also needs to be fully familiar with all three, a large number of calculations and simulations, etc., and now AT-2000 to realize this project technology, it is absolutely not enough to rely on the technology of your MM company. ”

In fact, about the importance of the integration technology of fire and flight push, take the simplest column to make its importance clearer, taking the 30MKI of the third brother's house as an example, the aircraft uses three-wing surface technology and three-dimensional vector thrust, at least in terms of maneuverability, it seems to be enough to hang the sky.

When Mao Zi and Sange were external, they have always claimed that MKI is half a generation more advanced than MKK, but in fact, the flight control systems of the two aircraft are basically the same, and the MKI equipped with vector engines did not write any control code for the vector nozzle, and its role is the same as the flat tail, when the aircraft wants to climb, the pilot pulls the rod, the flat tail deviates 5 degrees, the vector nozzle goes up 5 degrees, and when the flat tail needs to deviate 10 degrees, the nozzle also goes up 10 degrees.

Such a design is that the control of the engine is not fully integrated with the entire flight control system, at most it is only a simple cross-linking, the result is that the vector thrust is only a simple addition to the aircraft attitude control, and the main aircraft attitude control is still realized by the deflection of the aerodynamic rudder surface, and the vector thrust at this time is just the icing on the cake.

As for the actual combat effect of MKI, as long as it looks at the time when the third brother once sent MKI to participate in the Red Flag military exercise, under the dazzling technical bonuses of MKI's three-wing surface and vector thrust, he was still abused by his mother in maneuverability, and even when fighting against third-generation aircraft of the same level, he may not be able to occupy an advantage in air combat, but often because the third brother's pilot used vector thrust indiscriminately, he wasted the energy advantage that he had accumulated with great difficulty, and was finally beaten. (Note 1)

The reason for this is that the control of the flight attitude of the vector thrust is not completely integrated with the flight control, and the on-board computer only knows how to control the rudder surface of the aircraft to achieve flight control.

To be honest, if the pilot who flies the MKI knows enough about the performance of the aircraft and is a real ace in air combat, perhaps it would be better to give more control to the pilot, but the problem is that there are not so many ace pilots in this world, and more pilots still hope that the aircraft can be more intelligent, so that they can concentrate on processing more important information in actual combat.

In this way, the design of the integration of fire flight thrust is very necessary, the engine vector thrust that originally needs to be controlled by the pilot himself is directly integrated with the entire flight control interaction, and the on-board computer at this time knows, oh, it turns out that there is a vector thrust on my plane that can also achieve attitude control.

For example, the flight control, fire control, and power sensors of the F22 are operated in the same on-board computer, so the flight controller can control the flat tail to turn without the nozzle to turn, for example, when the flat tail torque is large when the high-altitude overcruise, the flat tail is offset by 15 degrees and the nozzle is deviated by 5 degrees; When the flat tail is inefficient when flying at low speed and high angle of attack, you can choose to use the deflection of vector thrust to achieve attitude control, and the vector thrust technology at this time is to send charcoal in the snow and play a major role in the attitude control of the aircraft.

It is also through this series of integrated designs that vector thrust can realize its role when it is most needed, and when the rudder deflection can meet the needs of use, vector thrust technology is not used, so as to ensure the sufficient output of the power system.

And such a series of action judgments, in fact, need to be realized by the on-board computer, which is the importance of the integration of fire and flight push, and it is also one of the important reasons why the F-22 achieves super-maneuverability, otherwise it is absolutely impossible to think that the F-22 can have super-maneuverability if it has strong power.

The integrated design of the fire and fly push shows such a powerful effect, but the relevant requirements for technology will definitely not be low, first of all, the requirements for the engine, at least the engine can achieve full authority digital control, after all, the computer can only recognize the digital language and control, if the engine can not be fully authorized digital control, it is certainly impossible to fire and fly to push the whole.

Secondly, after the introduction of thrust vector technology, the data processing performance requirements of the on-board computer should also be upgraded to the next level, originally only need to control the rudder surface in flight, now it is necessary to consider the flight altitude again, in order to judge what combination of control scheme to choose, if the two-dimensional rectangular vector of the United States is used, it is only necessary to consider the up and down deflection of the thrust, but when the three-dimensional vector thrust is used, the data to be processed will be more, and of course the performance will be more powerful.

Therefore, the data processing capability of the airborne computer is also a key technical point of the integrated control of the fire and flight push, and if all the above technologies cannot be achieved, the integration of fire and flight push should not be considered.

And it just so happens that AVIC Southwest is on the eve of a breakthrough in these related technical fields, and it has more or less some ability to touch this field, so to be able to have a guinea pig to do experiments, Yang Hui of course said that I am very welcome. (To be continued.) )