The best way to use mobile radar to make up for blindness is to use it, and as an emergency measure, blind radar is not only used for territorial air defense, but is also used for theater air defense.

Li Zhan was also thinking about what method Radar Station 27 would use to kill him, but the focus of his thinking was how Radar Station 27 would shorten the time to lock on to the attack. It doesn't make sense to detect it with light, you see it doesn't mean you can shoot it down, you have to launch an anti-aircraft missile.

He didn't understand what the No. 27 radar station would do until it took off, but he must have guessed the way to use the mobile radar to make up for the blindness. The radar unit has a professional blind radar, which was developed to solve this problem.

The average sea level of the Beiku Mountains is more than 2,000 meters, there are many peaks of 3 or 4 thousand meters, and there are more hills of 12,000 meters, and the drop difference is relatively large, so many steep and deep canyons have been formed. The route chosen by Li Zhan was optimized on the basis of the first breakthrough route according to the actual terrain characteristics. Rather than making flying easier, this optimization has made it more difficult so that it can be flown at a lower altitude.

From the point of view of exploring tactics, Li Zhan's role at this time is a tactical test pilot, and he wants to fly out of the limit of low-altitude penetration in mountainous areas, at least infinitely close to the limit, and his limit, the limit of fighter planes, and the limit of tactical use can be understood as the envelope of low-altitude penetration tactics in mountainous areas.

It is extremely important to fly out the envelope line, so that there can be a ceiling standard line in the future training.

So, he flew even lower.

Because of the curvature of the earth, it is difficult for the radar to find targets at low altitudes at long distances, so after the No. 27 radar station dispatched a low-altitude blind radar, does it still make sense to fly at a lower altitude? Absolutely, don't forget the mountain background.

Mountains and mountains are the best cover, and the radar will also receive the radar beam reflected back from the mountain, and the reflected beam of the fighter will be mixed with the reflected beam of the mountain, at least it can play the role of interfering with the radar operator - you must at least interpret it.

This is the time that Li Zhan wants to buy.

The faster the flight speed, the better, and the lower the altitude, the better.

After Li Zhan plunged headlong into the famous nameless canyon, the No. 27 radar station was blinded. Obviously, their blind radar cannot cover all blind spots, and it is even more difficult to detect canyons with mountain cover. However, Qu Hongbo was also prepared, and a mobile radar vehicle was deployed on the top of the hill in the middle of the canyon, and the direction of detection was to look down over the canyon. This extreme approach was also forced by Li Zhan.

In addition, Qu Hongbo also has a killer feature.

The sky was gray, there was some light fog in the canyon, and there was a lot of turbulence, Li Zhan did not dare to take risks, and took the most cautious flying attitude in his life to deal with it, and operated the No. 037 fighter plane unconventionally to carefully avoid the peak in front of him, and dived west along the rugged canyon.

He set the airspeed at 300 kilometers per hour, leaving himself about 50 kilometers to leave a margin, and the flaps at the three position, keeping the engine at a high speed, and the whole flight style was very cautious. Li Zhan's flying style has always given the impression of being bold to the point of being rude, precise to the point of finesse, and the two extremes are perfectly combined in him.

From the training base to the 2nd Division, and then to the 73rd Division, his style has not changed.

Now, in order to get the most accurate and objective flight parameters possible, he must make every one of his operations evidence-based and universal. It makes no sense for you to fly a set of methods that only a few pilots can master except you, and there is no way to popularize them.

The difficulty lies in the fact that Li Zhan must not only take into account the popularity of the operation, but also fly out of the limit as much as possible. It's a paradoxical concept, so much so that he's now considering whether to use up the 50 km/h margin or to increase the speed as much as possible. Whether it is the pursuit of fast or slow, it is the limit, and it is the envelope to fly out.

The fastest and slowest must be flown out, just as a test pilot should fly out the maximum and minimum airspeed of an unshaped fighter. Both speed limits are closely related to the aerodynamic layout of the fighter, which is also the main reason why the J-7 and J-8 series have been criticized since the beginning of the 21st century - the aerodynamic layout can no longer meet the requirements of modern warfare.

At this time, Li Zhan drove the J-7, which was criticized for not being suitable for ground strikes, and even if it was an E type with double delta wings, she was still a model based on close-range air combat.

If there are no conditions, you have to create conditions.

On the other hand, Li Zhan is carrying out research on the "228" topic in a fighter plane that is most unsuitable for ground attack, and this is not a wordless irony for other third-generation aircraft units, especially those fighter pilots who claim to be trump cards. Looking at it from another angle, what is the reason why the Air Force Division placed the "228" topic on the 73rd Division, instead of the third-generation aircraft unit, which is more suitable for this topic?

Even the 73rd Division's lecture on the integration of the three world-class difficult subjects was reported as a major "228" topic, and the Air Division quickly approved it.

What is the reason behind this?

Although Li Zhan spent a long time pulling rods and short rod fees all day long, he studied under Liu Guojian and had his own unique and unique views on the development of the Air Force, and he was often able to hit the nail on the head when looking at problems, and he also had different views on the reasons why the Air Force Division decided to put the "228" topic in the 101st Regiment of the 73rd Division.

It had a lot to do with him, with his master, with the special geographical location of the 101 regiment.

At the same time, it also reflects the indecisive mentality of the heads of the air division, and they do not have great confidence in whether they can do this or not, and there are some ideas of dead horses being live horse doctors.

Otherwise, how can we explain putting such an important subject in the hands of the Broken King?

Li Zhan had a clear understanding of this, which further prompted him to strengthen his confidence in tackling the "228" project and achieving good results. He even suggested that the three topics be combined into one big topic, which had the purpose of impressing the air division, of course, provided that he could figure it out.

It is useless for the cowhide to blow loudly, and it is still in the implementation. Li Zhan has always believed in one sentence - empty talk will ruin the country, and hard work will create the future.

Therefore, he had to restrain his burning desire to fly, and use the most ordinary operation to fly the fighter out of extreme tactical maneuvers in the extreme combat environment.

After the blind radar detachment began its work and still could not see the target, Qu Hongbo, who was in charge of the specific command, did not hesitate at all and immediately ordered the mobile radar vehicle on the top of the mountain to start a continuous search for the back section of the nameless canyon. As long as Li Zhan enters the back section, he will definitely have nothing to hide, and the back section is a relatively straight section, and the terrain is not conducive to cover, unless you fly close to the surface of the Ji River below the canyon.

The victory or defeat is in an instant, and if the optimal time for the search is missed, the 27th radar station will repeat the mistakes of the past. With all the preparation, it will be difficult for them to afford a second defeat. Therefore, it is better to turn on the mobile radar vehicle at the top of the mountain in advance to fill in the most fatal blind spot.

Qu Hongbo crossed his arms and quietly waited for the report of discovering the target, he didn't believe that Li Zhan could escape with such a net. Besides, he still has a killer feature, and he will not sacrifice it until he has to.

But as time went by, he became more and more nervous.

At this time, Li Zhan was fighting against the turbulence in the canyon. About 100 meters away from the still dry river, Li Zhan was already flying at a relative altitude that was infinitely close to the limit. He accelerated slowly, his airspeed increasing linearly from 300 kilometers per hour to 600 kilometers per hour, the mountain peaks in front of him swooping down at a faster speed, and the high-speed fighters were more affected by the turbulence. Li Zhan basically couldn't pay attention to whether there were mobile radar vehicles on the top of the surrounding mountains, and he devoted himself to controlling the fighter plane, and even encountered a strong air flow when he made a sharp turn.

Fighter No. 037 was flying waddling in the canyon, and from the outside, she often made a sharp turn when she was about to hit the mountain in front of her, and the auxiliary fuel tank on the belly pylon was almost brushing the mountain, and before it was leveled, there was a mountain peak in front of her, and the No. 037 fighter plane then hurriedly turned to the right sharply, drawing an "S" shaped flight path in the canyon.

The most frightening thing is that the No. 037 fighter is only a hundred meters away from the dry river below!

For a fighter plane with a speed of 600 kilometers per hour, more than 100 meters is only a distance of a few tenths of a second. If Li Zhan's operation is delayed or advanced by a few milliseconds, there will be only one result - the plane will be destroyed and people will die. His movements must be extremely precise, and there must not be a single deviation in the whole process, let alone a mistake.

Driving back to the No. 037 fighter once again gave Li Zhan a lot of confidence, he was able to become one with the No. 037 fighter, he was familiar with every part, every inch of aluminum alloy and every rivet on her body, and he knew very well what the reaction time of this process was transmitted to her designated part through the hydraulic transmission system, and he knew very well when her orgasm would gush out.

Without these foundations, Li Zhan would not have dared to run wildly at a speed of 600 kilometers per hour at a relative height of more than 100 meters in the canyon!

Fighter 037 was screaming hoarsely, her body undergoing a major test. Under the violent maneuver, the fuselage made a tooth-sour sound, even if Li Zhan knew that the strength of the fuselage could withstand it completely, he couldn't help but be a little worried that No. 037 would fall apart.

On the other hand, there is a payload and a secondary fuel tank, which has some impact on the flexibility of the fighter, which undoubtedly adds more difficulty to Li Zhan.

This is probably his most attentive flight, more careful than the use of J-8FR to bomb the mountain in complex weather, the most critical difference is that the flight speed at this time reached 600 kilometers per hour!

Li Zhan also has to try to increase his airspeed, and he wants to fly out of the limit.

As a result, when the No. 037 fighter plane rushed headlong into the back section of the nameless canyon like an arrow off the string, the officers and men in the mobile radar car on the top of the mountain were all dumbfounded.

What the hell is this fast?