At dusk, over the Bohai Sea, there is a sea full of orange and yellow colors and ships dragging a long trail. Another blast of cold air was replenished, and the coast of the Bohai Sea in late winter clearly felt that the temperature was dropping rapidly.

The J-7EGGH 037 flew about 500 meters below an Airbus-330, and around it, there were seven civilian airliners flying in different directions at various altitudes.

Civil aviation also has an evening peak.

While the families were preparing dinner, Li Zhan continued to descend to the base at an altitude reduction, and according to the instructions of the control tower, he drove the fighter plane as a passenger plane, and adopted the method of landing the passenger plane to stretch out the process of descending altitude for a very long time. About fifty kilometers from the base, he began to slowly descend to altitude.

Unable to know the angle of attack, Li Zhan could only rely on his feelings to make judgments and then fine-tune them.

(Pitch and angle of attack are not the same concept.) ）

Fortunately, the fighter plane was in the southeast direction of the base, and the landing direction was the same as the take-off direction, otherwise Li Zhan would have faced a big difficulty - landing downwind.

The base has been prepared, and the relevant military and local departments have also made preparations in accordance with the plan, and all the aircraft below four thousand meters in front of the No. 037 J-7EGGH have been transferred, and all the aircraft that are about to enter have also received orders to fly around. There happened to be three busy international routes passing through this airspace, and three large passenger planes that had already entered the landing procedure received the order to climb and avoid.

Lao Chen gave Li Zhan an adjustment order in a timely manner, and Li Zhan's feedback was very accurate. Judging from the ground radar display, the No. 037 J-7EGGH basically flew along the special landing route quickly worked out by the staff officers. This gives everyone a lot of confidence.

By the time it was ten kilometers from the base, the flight altitude of the 037 J-7EGGH had dropped to two hundred meters, and according to the special landing route, which should be a special forced landing route to be exact, the 037 J-7EGGH had to continue to slowly descend to the altitude, and then ground at the minimum angle.

The runway has been completely emptied.

"Three turns in the hole, three degrees to the left, don't worry if you move slowly." Old Chen saw that the nose of the plane was not completely aligned with the runway.

"Understood! Three degrees to the left. Li Zhan carefully adjusted the nose of the plane to the left and stopped the movement by feeling.

The radar officer gave a thumbs up excitedly after seeing the nose of the No. 037 J-7EGGH and the central axis of the runway merged.

Old Chen Tou said, "Three turns in the hole, put up the landing gear!" ”

"Understood!"

Li Zhan released the landing gear, the landing gear switch is a hard switch, hydraulic and mechanical transmission, and the switch was broken to the "falling" position with a flashlight, and then the fuselage shook slightly, and the sound under the front and rear landing gear could be clearly heard.

"The tower, the landing gear is down." Li Zhan reported.

The staff officer observed with a telescope and could vaguely see that the landing gear of the No. 037 J-7EGGH was lowered, and he reported, "It must have been put down, but the distance was too far to confirm whether it was in place." ”

It's one thing to put it down, it's another thing to put it in place.

No. 037 J-7EGGH has no chance to pass through the field, and it is very difficult to re-guide the alignment if the runway is missed.

Old Chen Tou thought for a moment and gave Li Zhan a new order, "Dong Sangui, your current speed is 380 kilometers, you close the accelerator and reduce the speed to 280 kilometers." ”

"Understood." Li Zhan continued to operate cautiously, and then quickly reported, "Please confirm the speed." ”

The radar officer gave a thumbs up again, admiring that Li Zhan executed all the instructions at one time, and even made people suspect that the cockpit was not powered off at all. In the absence of feedback, it is very profound to rely on experience to execute ground guidance instructions and get them right the first time.

"The descent rate is three meters, and it is grounded after a minute." Old Chen Tou looked at the data quickly calculated by the staff officers and nodded slightly.

Li Zhan confirmed the information, "The descent rate is three meters, and one point is grounded." ”

"Listen to my command and close the throttle."

"Understood, listen to your command to close the throttle."

No. 037 J-7EGGH slowly approached the southern end of the runway like a sleepy-eyed person lazily touching his mobile phone with his eyes closed, and when he was one kilometer away from the southern end of the runway, his flight altitude was already very low, only fifty meters above the ground. Such a forced landing route is completely uncompliant, but special treatment under special circumstances, the worst result is a crash, and the lower flight altitude will at least fall lighter.

The staff officer quickly observed the landing gear of the No. 037 J-7EGGH and reported: "The front and rear landing gears are all in place!" ”

The last operation is no problem, and the hardest part is here.

Up to now, except for Lao Chen, the mood of the rest of the personnel has changed from frequent despair to hope and then to the current excitement, showing such a process of change. Such a danger has never appeared, the dark cabin flight is covered by the cockpit canopy, but now Li Zhan is experiencing the situation that his eyes are also blindfolded, and at the same time he suffers from the failure of the oxygen supply system. Almost no one believed that Li Zhan would be able to drive the fighter back - because almost no one could do 100 percent of the ground guidance instructions without the fighter plane's attitude feedback.

However, from the time of the malfunction to the present, every maneuver of Li Zhan has fully complied with the requirements of the ground guidance command, and so far all of them have been in place at one time.

This person has a deep accomplishment in piloting J-7 series fighters - this is the strongest feeling of the staff officers.

From impossible to only one step away from success, most people's mental journey in such a process is changing from low to high. Everyone began to really pay attention to Li Zhan, a student who was "admitted without examination", from hooking the second blocking rope seven times in a row to now encountering extreme danger, every manipulation action is much higher than the standard in the textbook, which is naturally admirable.

"Dong Sangui listens to my password and touches the ground, understand?" Old Chen Tou stared intently at the posture of No. 037 J-7EGGH and said in a deep voice.

The tower was very quiet, only the sound of the instruments working. Most of the posts have already completed their work, and the commander, radar officer, and signal officer still cannot be taken lightly.

The signalman is a sergeant, he stares at the landing gear, repeatedly confirm whether the position of the landing gear is correct, if it is not correct, he must report it as soon as possible, usually he will shoot a red signal flare to the front of the landing fighter plane as soon as possible, the pilot sees the red signal flare and immediately pulls up the go-around, and then the signalman reports to the commander. Because the fighter will often be grounded in two or three seconds at this time, the pilot must be notified first and then reported to the commander.

The sergeant finally breathed a sigh of relief, and the flare gun he held slowly returned to its position on the table, closing the safety at the same time.

Old Chen Tou began to count down, "Ten! Nine! Eight! ……”

"Touchdown!"

Li Zhan quickly carried out the landing maneuver, and the rear landing gear tires of the No. 037 J-7EGGH were grounded, and two bursts of light smoke suddenly rose. The next thing is all up to the pilot, Li Zhan let the nose landing gear touch the ground by feeling the pressure lever, and when he felt that the attitude of the fighter was stable, he decisively retracted all the throttle and then stepped on the brakes.

No. 037 J-7EGGH "Zizizi" slid forward, and the emergency rescue vehicle roared and rushed over.

After seeing the fighter stop steadily, the people in the tower were really relieved.

But it doesn't end there.

What exactly caused the J-7 037 to fail twice in a row? The second failure is even a type that has never been encountered before.

It is unlikely that it is a problem with the maintenance.