Four J-8FRs, which are gray and white and low-key, lifted off one after another, and unlike in the past, this time they all hung the surveying and mapping pods brought by Fan Zengsheng on the belly pylon, which is said to be the world's advanced level.

As an escort command aircraft, Li Zhan was supposed to take off before them, but in fact Li Zhan was the last to take off. The cannon magazine was full, and two PL-8D combat missiles and two seven-barreled 90-mm rocket launchers were hung. Such a payload combination seems very strange, air-to-surface missiles should be used instead of rocket launchers, but the family heirloom cannot be lost (poor).

Of course it's not true, if you really want to use it, you have to smash the pot and sell iron. In fact, the payload configuration is to deal with the live-fire training tasks that may be suddenly issued by the air division. Generally speaking, these types of ammunition are used in the air division's random inspections and air-to-ground live firing training.

Li Zhan is not pretending, according to the past manipulation of the air division, they will definitely not let go of this opportunity for a sudden spot check. The Eagle Falcon Brigade was all dispatched to conduct a 4-3 comprehensive exercise, and the training plan was reported to the Air Division, and the Air Division naturally knew that the 101st Brigade was in an empty state at this moment. Do you expect the second and third teams to play well in such weather?

Don't forget that at this moment, when the weather has just passed the blizzard but there is still some light snow, the most important thing is visibility, and there is basically no way to attack visually.

"Tower, I'm a cave, low-altitude visibility is very poor, look at the thickness of the clouds, the mapping team has to go up to the height, it's over." Li Zhan looked around, gray and cloudy, and at this time he was flying at an altitude of one thousand meters.

The people on duty at the tower today are all very weighty people, Zhang Yuan is personally in charge of the meteorological side, Xue Xiangdong is the commander, Yang Jinshan is the deputy commander, and Lieutenant Colonel Lu is standing aside like a special commissioner, ready to influence the entire operation with a sentence or two.

Zhang Yuan quickly handed the latest cloud data to Xue Xiangdong, who immediately made a decision and called Li Zhan, "Dong Qi, you can go up to eight thousand, I'll call the other planes away, over." ”

"Understood, eight thousand, over." Li Zhan immediately commanded the surveying and mapping team to rise to an altitude of 8,000.

The sea height is 8,000, and the relative height is only about 6,000, and when you reach the sky above the Beiku Mountains, there is only a relative height of more than 3,000.

At this time, the Eagle Falcon Brigade had fighters penetrating the defense at low altitudes, fighters striking on the ground, and fighters fighting freely in the air without altitude difference. In order to let the surveying and mapping team carry out surveying and mapping in this air operation, it is very important to pay attention to the command ability of the tower commander.

On the other side, it was Lan Zhi who specifically commanded the 4-3 comprehensive drill of the Eagle Falcon Brigade. This reinforces the importance of the tower commander in the central coordination position.

Zhu Wei reported, "Dong Yu, we did a test, 8,000 exceeded the working height of the pod mode three, and the request for a height of 5,000, over." ”

Li Zhan immediately reported to the tower, "Tower, Dong Yu called, we want to go down to the height of 5,000, over." ”

The tower didn't reply for a while, and Li Zhan called again.

Xue Xiangdong replied, "Dong Mi, don't worry, I want to report to Lan Zhi, and Lan Zhi will give me clear instructions before I can give you instructions, over." ”

"I understand." Li Zhan can't be too cumbersome, this is not an ordinary training task, without Lan's instructions, the tower has no authority to do such scheduling.

Han Hongjun flew over Li Zhan's left flank, the distance was very close, and he saw at a glance the three big words "good luck coming" on the side of the No. 01 SU-27SK cockpit section, cracked his mouth and shook the wing in salute with a smile, and then increased the throttle and left.

There is a reason why Lan Zhi and the tower are so cautious, the weather is complicated, the visibility is extremely low, the aerial mapping route and the route of the 4-3 comprehensive exercise overlap in many places, and the general direction is the same, and the air collision must be avoided without altitude difference, which puts forward higher requirements for the personnel of both sides of the air and ground.

"Dongyi, the height of the mountain is 5,000, pay attention, I will allocate the height below 5,000 to you, over." Xue Xiangdong finally called Li Zhan.

Li Zhan breathed a sigh of relief and said, "Dong Mi understands, the height of the mountain is five thousand, and the airspace below five thousand is allocated to me, it's over." ”

The aerial mapping team accelerated into the mountain and then descended to a predetermined altitude, and the four J-8FRs disbanded the formation according to the predetermined plan and divided into four groups to begin aerial surveying. Four fighter planes on four routes will fly four sorties today, and they will use one day today to complete the aerial mapping mission in the Beiku area.

Li Zhan pressed Zhu Wei closely, his position was above Zhu Wei's rear, the airborne radar continued to illuminate Zhu Wei's landline, and the friend or foe recognizer continued to identify each other's positions. Despite the difference in altitude of only two or three hundred meters and the distance between the front and back is ten kilometers, Li Zhan is still worried about a rear-end collision......

As far as the eye can see, the visibility is only four or five kilometers.

"Adjust the frequency to 38325, over." Li Zhan called Zhu Wei.

Zhu Wei piloted the No. 101 J-8FR, and this tactical number fighter has become the ace landline in the Nighthawk Tactical Reconnaissance Group, and the pilot who can drive this fighter must be the best in the regiment.

"Received by the Unit, adjust the frequency to 38325, over."

Xue Xiangdong called, "The tower calls Dongyi, the special frequency of the surveying and mapping team is 38325, over." ”

"Dong Yu received, mapping frequency 38325, completed." Li Zhan confirmed that all four fighters of the surveying and mapping team were in the frequency and replied to the tower.

Xue Xiangdong gave an order, "Each group proceeds as planned, finished." ”

"Understood."

With the establishment of an additional dedicated communication channel, the aerial mapping operation began in earnest. The pilots didn't know how the military engineers managed to make the survey pods that could be used in bad weather, but they knew that they had to constantly adjust the altitude and speed according to the plan to meet the working conditions of the survey pods.

The situation became more complicated after entering the mountains, with more turbulence, cooler temperatures, and more intense snowfall. Li Zhan could even make out that it was not the clouds blocking the sunlight that affected visibility, but the broken snowflakes that filled the air.

Of the four J-8FRs, only Zhu Wei needs to be escorted, and Li Zhan is in charge. It's not that Li Zhan's personal combat effectiveness is the strongest, but that Li Zhan is a special pilot who commands the ground tower or even the command post when necessary, and can use compliant procedures to coordinate more resources to support in the shortest possible time in an emergency.

Of course, Zhu Wei's side needs escort and cover, indicating that the surveying and mapping route he is responsible for is the most dangerous.

Li Zhan's spirit was highly concentrated, and that heart had been carried and could not be placed. If he performs a certain mission, it is a big deal to trade his life for victory. But he is now responsible for ensuring the smooth completion of Zhu Wei's surveying and mapping task, and he has to survive to protect others, so he feels more pressure.

This pressure is not counterbalanced by a code name like "good luck comes".

Everything is going well over the Beiku Mountains, and the real danger will only appear after entering the western area of the Beiku Mountains.