Chapter 1970: Feihuo push integration

"Of course." Hearing Qin Guan's question, Lu Lao immediately explained to Qin Guan: "For example, the radar in front of it has begun to use our latest phased array radar. Of course, because this is The first plane is preparing to fly for the first time. It is not equipped with radar equipment. It is replaced with a counterweight. However, the next third and fourth planes will definitely be equipped with this most advanced radar equipment."
For Han, the most advanced is electronic technology. Now, Han has successfully developed early warning aircraft and anti-aircraft Aegis ships, all using domestic phased array radar systems. Similarly, this set of radars can also be transplanted to The fighter plane comes up.
In this era, MiG-31 has also begun to switch to phased array radar. This new type of radar allows fighters to have stronger detection capabilities. However, the MiG-31 is a passive phased array radar, or The centralized launch method is only the addition of a phase shifter in the front, and Han Guo's is already a phased array radar composed of individual T/R units!
With the advancement of technology, the size of the new generation of units has come down, which means that it can accommodate more units and achieve stronger detection capabilities. In this regard, Han has reached the world's most advanced level.
Phased array radar is the only way to find stealth aircraft. In later generations, if you don’t go out with a phased array radar, you will be embarrassed to say hello to others. Now, even if it is the most technologically advanced Eagle Country, it has not been done yet, Han The country has already been established. Back then, Qin Guan took the electronic system as a breakthrough direction and used the development of civilian chips to drive the development of military use. This road has been taken.
The current first flight of the fighter is useless, because the first flight is mainly to verify the performance of the whole aircraft, not to verify the avionics, so it is just a counterweight.
"In addition to the improvement of the fire control radar, another major difficulty in the development of this aircraft is its integrated flying and propulsion system." Lu Lao said: "This is the core and soul of the fighter."
Hearing this, Qin Guan was even more excited.
The prototype Tomcat fighter only uses hydraulic control, and uses computer control on the variable swept wings. However, later in the improved F-11 fighter in Han, it has become a three-axis four-axis fighter. The redundant digital telex is now available. This system, combined with the variable swept wings, has greatly improved the maneuverability of the fighter. Now, it has taken a step forward and the flying fire push is integrated!
Qin Guan knew this concept clearly.
In the era of the third-generation aircraft, the fly-by-wire system only operated the flight control and controlled the flight of the fighter. In addition to the flight control system, the fighter also has a fire control system and a power system, which are relatively independent.
What about the fourth-generation machine? It is to integrate the control of firepower and power system to form this "flying fire push" integrated integrated avionics control system.
what are the benefits?
To give a simple example, for example, when the radar system finds an enemy aircraft, it can inform the pilot how to maneuver. When locked, the analysis of the radar is integrated, and even the fighter aircraft can be directly operated to complete the snake maneuver and get rid of the opponent. The radar is locked, and the flight position is absolutely accurate.
When using a snake-like maneuver to enter a head-on battle, the pilot rolls, and then pulls the rod to circle horizontally. At this time, the flight control is in effect, and the fire control system can also determine according to the program that the aircraft is now hovering to the left. If you hover to the right, you can automatically decide whether to open the left or right bomb bay, and cool the air-to-air missile guide head earlier. In the past, these were all manually controlled by the pilot. Now you can do it directly. It will be easier. After all, computers can’t make mistakes and every step is quite precise.
As for the combination with the engine, it is more advantageous. When you climb, you will automatically add the throttle to the engine, and even operate the vector nozzle to make the corresponding steering.
When conducting a ground attack, simply set the route and the aircraft can fly over automatically. The front radar scans the ground with the synthetic aperture function. It can be pulled up or dived at any time according to the ground conditions, and the engine can increase or decrease its thrust. All can be controlled automatically. This is like the development of a car's constant speed cruise to ACC adaptive cruise.
With just a few simple examples, you can know that after doing so, the combat effectiveness of fighter jets will be greatly improved, but for aircraft designers, this thing is very risky.
At the beginning, the telex control, the 1553B data bus, was equivalent to bringing the electronic equipment of the whole machine together, but it was far from enough for the integration of Feihuo push.
It must use an integrated avionics system, and use a large number of distributed processors to process flight control, fire control, power and other data. It needs a large number of sensors and a high-speed data transmission rate. In theory, optical fiber transmission is the future high-speed and large-capacity channel, and it can also avoid the problem of electromagnetic interference.
There is also an important issue, that is, the engine must be matched. The engine of the third-generation machine is mechanically controlled, and the fourth-generation machine must be converted into digital control, so that it can be matched together.
"Does its engine cooperate?" Qin Guan asked.
If the electronic system is our biggest strength, then the engine is our biggest shortcoming.
Of course, with the success of the turbofan-10 manufactured by ourselves, that is, the F110 engine imitated by surveying and mapping, the third-generation machine no longer has to worry about the power problem, and it is much easier to use than the previous Spey, but, to the fourth-generation machine In the times, that is not enough.
The fourth-generation machine needs an engine with a thrust-to-weight ratio of 10, which is definitely not available to us. Moreover, the fourth-generation machine still needs a vector nozzle.
"In terms of engine, we are now using an improved version of the turbofan-10 engine. This version of the engine uses a digital control system. At the same time, a vector nozzle is added at the back."
While talking, I brought everyone to the back of the plane. From here, you can see the two chrysanthemums at the tail of the plane, one leaning upward and the other downward!
Back then, after the first flight of the J-20, there were many talks about the integration of Feihuo, because the engine imported from Xiongguo had no digital control, it was ordinary analog control. At the same time, even digital control was impossible. Get the source code, which shows that the engine cannot be integrated into the system.
However, the J-20 demonstrates the certainty of this system with its own flight performances, because it uses no imported engines at all, it is self-developed, and it can be changed whatever you want.