Diving down from an altitude of 15,000 meters, it can easily exceed the speed of sound without afterburner. Li Zhan enjoyed the thrill of acceleration, keeping a close eye on airspeed and altitude. The height of the ridge of the Beiku Mountains below is more than 3,000 meters, and the highest peak is more than 4,300 meters above sea level.

In fact, the highest peak and the second peak of the Beiku Mountain Range are important landmarks, and Li Zhan is very clear about the location of the main peak. The simulated target is the mountain, and the simulated attack on the mountain completes the ground attack and then disengages. Such an obvious goal, if you have to pick out the challenge, you can only say that if you are extremely stupid, you may hit the mountain.

There was no suspense, the crisp and neat attack did not drag the left turn and pull away at all, and Li Zhan flew back at a low altitude in the Beiku Mountains under the altitude.

High-altitude attack, low-altitude return, standard run-to-ground strike mode. If you change to the SU-27, SU-30, J-11 or J-10, it is obviously comfortable to play this hand. For the J-7, which emphasizes high-altitude, high-speed, flexible and lightweight, it is somewhat inadequate.

Air Force pilots should have the spirit of daring to be the first in the world, the J-7II fighter is the first J-7 modification with night combat capabilities, and it is also the first modification with thunderbolts and rockets, although many times I don't know where to hit the thunderbolts.

Since you have this ability, you must dig out the corresponding combat power.

It is true that he was mentally prepared, but when the No. 01 fighter disappeared from the radar, Xue Xiangdong's heart still involuntarily hung high.

He sighed and said, "If only there were AWACS." ”

Li Zhan flew at a low altitude among the mountains according to the plan, using the occlusion of the mountains and the curvature of the earth to cover his return, which meant that he would be out of the radar's detection range. Because of the curvature of the Earth, it is difficult for radars to detect low-altitude targets. In order to solve this problem, people moved the radar to the aircraft, increased the reference altitude of the radar, greatly increased the detection range of low-altitude targets, and became more meticulous, so there were early warning aircraft.

"That thing has it, but we don't know the Year of the Monkey when it comes to us." Yang Jinshan said, "He flew at low altitude in the mountains many times to fight the flood in Sanhe, and the weather at that time was even worse than now, so there would be no problem." ”

"How did the Detective Eight he drove fall apart at that time?" Xue Xiangdong frowned and asked.

Yang Jinshan said, "According to the investigation report reported, the intensity of use is exceeded. The eighth master is still quite sturdy, but unfortunately he can't withstand such a high frequency of overload. Full load on afterburner supersonic flight, but also do a big overload maneuver, at that time in such weather, in short, anything can happen. ”

"The new plane is gone in less than half a year, and it's really a loser." Xue Xiangdong shook his head helplessly.

"Commander, but he has done a great job." Yang Jinshan said with a smile, "At that time, the flood control situation in Sanhe was very critical, and tens of millions of people in the middle and lower reaches of the river basin were facing threats. He flew two sorties, braving strong winds and heavy rains, and carried out repeated and precise bombardment of the natural lake upstream, blowing up a section of the mountain, guiding the flood water away, and the flood control pressure in the middle and lower reaches suddenly plummeted. ”

Xue Xiangdong nodded slowly, "Yes, people, there is really no perfect." Having said that, you have to make great contributions, and you can't do anything without paying something. Compared with the safety of the lives and property of tens of millions of people, a mere Annihilator 8 is really nothing. ”

Yang Jinshan couldn't help but smile and said, "I heard that the Jianzhan 8 was provided by the manufacturer to the Second Division for testing, and a total of two were provided, and the troops did not pay. ”

Stunned for a moment, Xue Xiangdong laughed, "It seems that this kid is not all bad luck!" ”

Although the two tried to relieve the tense atmosphere in this way, not only were they still so nervous that they seemed to be casual when they spoke, but the rest of the personnel on duty in the tower also looked solemn and did not squint, especially the radar officer, who stared at the display screen and wanted to teleport to Li Zhan's side to pull the bar for him.

Probably the most calm is Zhang Yuan.

In order to ensure the combat training under complex meteorological conditions, he came to the tower as the deputy technical director to be on duty in person and pay close attention to weather changes. He knew very well that even if something happened, Li Zhan would fly back unharmed, so there was nothing to worry about.

Thinking of this, Zhang Yuan subconsciously smiled slightly, this scene happened to be seen by Xue Xiangdong, so Xue Xiangdong walked over and asked in wonder, "Xiao Zhang, how is the weather, you look relaxed, is there good news?" ”

The main group shouted the deputy group Xiao Zhang, which seemed somewhat inappropriate. However, Xue Xiangdong is about ten years older than Zhang Yuan, and it doesn't seem inappropriate to call Zhang Yuan Xiao Zhang. In short, no one present felt that it was inappropriate, and Zhang Yuan himself did not feel inappropriate.

Xue Xiangdong's prestige in the 101st Regiment and even the North Reservoir Station was too high.

Zhang Yuan hurriedly replied, saying, "The weather will continue to improve, but it will almost remain unchanged today, I don't know if it's good news." ”

"Well, very good, the work of your meteorological department is very important, whether you can fly and how to fly depends on you." Xue Xiangdong nodded slightly.

Zhang Yuan smiled bitterly and said, "Head Xue, you don't have to worry, this kind of weather is really nothing for Li Zhan." He had flown in even harsher weather conditions than that, and many times, and he was very experienced. ”

"I believe in him, otherwise I wouldn't have supported him to conduct complex meteorological training." Xue Xiangdong looked very aggrieved when he was insincere.

"Report! The cave has appeared! "The radarman reported that everyone was injected with stimulants.

Xue Xiangdong came over and stood behind the radar officer, Yang Jinshan picked up the microphone and handed it to Xue Xiangdong, who called Li Zhan, "Dong Yu Dong Yu, the tower called, and received an answer." ”

In the sound of electromagnetic interference, Li Zhan's voice was full of calmness, and he said, "Dong Yu received it, the radar confirmed my position and attitude, and my horizon was interfered with, over." ”

The direct-reading gyro horizon is in the most prominent middle of the instrument panel, and the pilot can see it intuitively when he opens his eyes. The horizon is an extremely important instrument that indicates the pitch and roll status of the fuselage. Whether it is a second-generation aircraft, a third-generation aircraft, or even a fourth-generation aircraft, or how advanced a passenger aircraft is in civil aviation, the horizon is an extremely important indication device.

However, when the sensing element of the device is subjected to strong electromagnetic interference, a large error value will be generated. What's more, the performance and reliability of the horizon equipped with the J-7II can no longer be compared with that carried on the current third-generation aircraft.

The magnetic field in the mountains is chaotic and it is normal to experience some disturbances.

The radar officer immediately confirmed the specific position and attitude of the No. 01 fighter, and after Xue Xiangdong informed Li Zhan of the relevant data, he ordered, "Dongyu, keep the course altitude, return as planned, over." ”

After confirming that the horizon was indeed interfered with, there was a large error and lag, and Li Zhan did not dare to take it lightly.

He looked from both sides, and the visibility was very low, which was not a good sign, and he said, "Tower, I have encountered heavy fog, apply for height, over." ”

"Hole, six thousand to keep, to thirty kilometers called, over." Xue Xiangdong really ordered, he was too happy that Li Zhan had made the right choice, instead of insisting on continuing to fly at a low altitude.

"Understand, six thousand keep, thirty kilometers is good." Li Zhan immediately pulled the lever and climbed.

The fog in the mountains is a killer of fighters, the visibility is less than a kilometer, the fighters are shrouded in fog, and the pilots cannot see anything, which is more threatening than turbulence. Coupled with the large error caused by the interference of the horizon, the probability of going up the mountain skyrockets.

Li Zhanyi's boldness does not mean that he has brain cramps and lives impatiently.

Again up through the clouds up to six thousand, almost flying close to the top of the clouds, he looked around, and did not see the thirty-kilometer landmark Xiaobeiku Peak. The so-called 30 km landmark means that when you reach the sky above the landmark, it is about 30 km away from the North Kuchang Station. Xiaobeiku Peak is the second highest peak in the northeast direction of the main peak of Beiku, with an altitude of more than 4,000 meters, that is to say, the peak of Xiaobeiku Peak should be a little cloudy.

The clouds changed again, obscuring the Xiaobeiku peak.

In desperation, Li Zhan could only report that the tower was back at a higher altitude, but fortunately, when he returned to the clouds, he had already passed the foggy area. Li Zhan constantly communicated with the tower, confirmed his location, and confirmed the location of the station. Rao is familiar with the surface terrain of the region, and under such weather and visibility, he is almost blind.

Li Zhan couldn't help but secretly think, he must find a way to get a portable positioning device, and if he can't do it, he will buy a civilian GPS locator!

He had no way of knowing his exact location, and it was fine when there were landmarks or could see them, but other than that, he was blind.

Isn't there a Beidou satellite positioning device?

There will be anything in the future, not now. Li Zhan, who has at least driven the J-7 and J-8, knows very well that these two models are not equipped with Beidou satellite positioning terminals, including the J-8FR tactical reconnaissance aircraft. It is necessary to confirm one's own position through ground-based radar, whether it is to go to the combat airspace or return to the field, it is inseparable from the guidance of the ground command post.

It can be said that once the J-7II in the sky loses contact with the ground, it will be a blind fly, and it can only fly a few times. This is the reason why Xue Xiangdong and others were so nervous after the radar lost the trace of the No. 01 fighter.

Some units of the Chinese Air Force, which entered 2010, had a harder time than ordinary people imagined.

After seeing Xiaobeiku Peak, Li Zhan immediately made a report, and the next thing was the basin of Yima Pingchuan, and after the horizon returned to normal, he didn't have to worry about hitting the mountain, even if he once again entered the light snow weather with extremely low visibility.

Li Zhan turned around three times before he saw the runway, but fortunately, the penetration of the high-power searchlight installed on the weather station was strong enough, otherwise Li Zhan would have had to work hard to find the airport. At this time, under the clouds, it was gray as far as the eye could see, and although the darkness of take-off was gone, the visibility was still very poor.

"Tower, I'm off the landing gear, ready for three turns." Li Zhan reported.

In the tower, Xue Xiangdong looked at the observer, and the senior soldier hurriedly looked for it with a telescope, and reported loudly in a trembling voice, "Report!" I can't see the landing gear! ”

Xue Xiangdong looked out sharply, the visibility was estimated to be less than a kilometer, and he could see the navigation lights of the No. 01 fighter plane flashing in the three turns, but he couldn't see the state of the landing gear at all.

"Dongyi, I can't see your landing gear, go through the field once, pay attention to the altitude and speed." Xue Xiangdong decisively issued a new order.

Li Zhan replied, "Understood, once through." ”

The purpose of the whole field is to let the tower confirm that his landing gear is lowered normally, and Li Zhan does not dare to act in this regard. Or maybe he has some shadows in his heart.

It was very stable through the field, and it was as close to the tower as possible, so the whole fighter was at a glance.

The front and rear landing gears have been lowered normally, Xue Xiangdong breathed a sigh of relief, and gave Li Zhan an order to land, Li Zhan rose a little height, turned around and came back, and landed steadily.

Night flights, training in low-visibility weather, and landing are the most critical links, especially for these second-generation old aircraft. As long as you find the airport and see the runway, this subject is considered a passing to a certain extent.

There are two major thresholds for carrier-based fighters to board the ship, the first is to take off from the deck, and the second is to land on the deck, on top of which there is a night voyage, and the difficulty coefficient soars. To put it simply, a pilot who can take off and land on the flight deck at will is a veritable first-class ace of the entire army's aviation unit.

There were no dangers along the way, and the combat training in rain, snow and fog that Li Zhan personally conducted was declared a success.