People will always have a nostalgic complex, and if they fly more planes, they will miss the earliest model, and Li Zhan is almost in such a situation now. I already had some experience when I transitioned, and now I have a different feeling when I fly in the dark cabin.

Most night flights have starlight as a reference, and the pilot is sure of "up and down", while flying in a dark cabin is to see nothing at all. Pilots on overnight flights may confuse starlight with ground lights, and the consequences can be catastrophic. If the dark cabin is not tightly covered in flight, the pilot is easy to regard the translucent side as the sky because of the inertia of thinking, which will also bring fatal consequences.

As a means of instrument training, dark cabin flight requires pilots to focus all their attention on instrument information and ground commands, rather than trying to look out through gaps. Flying completely on the instrument in accordance with the instructions of the ground is the basic skill that a pilot must have.

For the landing of the ship, Li Zhan made a number of improvements, including simulating the maritime environment, arranging three sudden commands that require short flight time and large flight actions, and two low-altitude clearances.

What Li Zhan needed to do was to simulate the landing hook and interception cable for two hours under the condition of flying in a dark cabin, with an average of once every ten minutes, and he needed to do it ten times, and finally discuss and analyze it according to the final results in order to come up with a training standard.

What kind of standard the pilot needs to achieve in the subject of flying in the dark cabin to simulate the landing of the ship before entering the next stage of training is not known to everyone, so Li Zhan needs to fly out.

With him, the leader will not consider others, and others will not compete, anyway, they can't grab it.

Of course, Li Zhan was extremely happy, last year's flying hours dropped by a large margin from the previous month, and since the beginning of spring this year, he has also fished for three days and dried nets for two days, and if he doesn't work hard, he will have to go home and inherit tens of millions of dollars.

Flying hours are the most obvious manifestation of a pilot's qualifications.

The ground radar system continued to measure the real-time position of the No. 037 J-7EGGH, and once a deviation was found, the pilot would be notified immediately, which was no different from the dark cabin flight training organized by ordinary troops.

The difference is that Li Zhan drove the plane very fast, and the WS-XX turbofan aero engine with a slightly sharp whistling sound provided steady power, pushing the eight-ton fighter at this moment to fly at high speed from a height of about 300 meters diagonally above the west side of the tower. This made the tower commanders, who were accustomed to the flat and stable style of training, feel a little surging.

Li Zhan's movements in the sky are very bold, and when adjusting his attitude according to the ground commands, he usually chooses a very drastic but most efficient maneuver to complete. For example, when he descended altitude, he directly reached the specified altitude with a 360-degree turn, rather than using the angle change of the horizontal tail to let the fighter slowly descend to the altitude.

Fighters, then you have to have the style of a fighter, otherwise what is the difference with a transport aircraft.

Li Zhan put down the landing gear during the second time, and after the signalman not far from the commander confirmed the normal landing gear of the front and rear landing gears through manual observation, he immediately reported to Lao Chentou.

This was followed by the "landing and resumption of flight".

After the two clearances, the landing had to be completed within 10 minutes, which was very time, and Li Zhan accelerated his flight speed, and according to this rhythm, he could "land" at least 15 times in two hours. Old Chen Tou was satisfied with Li Zhan's initiative.

No. 037 J-7EGGH added the standard glide line for the third time, and the standard glide line given by the landing radar was presented to the radarman through the display screen, which was a radar oscilloscope a few years ago, and even now there are still a small number of troops in use. The radar officer gives the pilot adjustment instructions according to the specific situation of the aircraft, and the pilot passively executes the whole process. This passive guided landing method is the technology of Lao Maozi, our military has used it for many years, but the army has begun to gradually adopt the landing guidance technology of civil aviation, and the active, technology from the ugly country, civil aviation has always been used.

"Hole three turns, you are grounded fast, pay attention to the speed." Lao Chen Tou saw that the entry speed of the No. 037 J-7EGGH exceeded thirty kilometers and reminded Li Zhan.

The grounding speed of the J-7EGGH No. 037 is thirty kilometers faster than the regulations, which is not a good sign.

Li Zhan quickly adjusted, looked at the watch speed number, frowned slightly, and replied, "Tower, there should be a problem with my airspeed monitor, and the reading is normal." ”

Old Chen's heart sank, and he quickly said, "Listen to my guidance and keep it in shape." ”

The airspeed gauge shows the specified landing speed, but the actual landing speed of the fighter is 30 kilometers faster.

It's not a big problem, the fighter's posture is maintained very well, Li Zhan slowly retracted the throttle according to experience, and asked the tower after knowing it, "Tower, what is the speed now?" ”

"You've got to be five kilometers slower, don't worry." Old Chen's tone was very steady.

The No. 037 J-7EGGH, which is five kilometers away from the runway, still has altitude and distance, so there is no need to be nervous at all. If there is an error in one meter, there are multiple solutions to the problem. This is where the pilot's experience comes in.

"Okay, steady, keep the pitch angle and keep the descent rate." Old Chen nodded with great satisfaction and instructed Li Zhan.

Li Zhan is too familiar with the J-7, especially the No. 037 J-7EGGH, in just two seconds, he relied on his experience to stabilize the airspeed of the fighter at the specified speed, no more, no less, very accurate. In order not to change the pitch angle of the fighter, he only adjusted it by throttle, which again highlighted his extreme proficiency in the control of the throttle stick.

Entering the three kilometers, the No. 037 J-7EGGH, which had already lowered the landing gear, slowly changed from the attitude of looking slightly bowed to a level flight attitude, but the fighter still maintained the original descent rate and steadily fell towards the blocking cable area on the runway.

The next key step is that after the rear landing gear touches the ground, the pilot has to perform a series of maneuvers, including throttle, flaps, brakes, rudder, until the fighter glides to a speed of less than 20 kilometers per hour.

Obviously, there was a problem with the airspeed gauge, and the training could not be continued later.

Lao Chen Tou told Li Zhan: "Land normally, suspend flights, and overhaul the plane." ”

"Dong San Gui understands and lands normally."

Li Zhan felt a little regretful in his heart, and the whole two flight hours that he had waited for were only flying for less than ten minutes, and the heart that had been holding back his strength and wanted to make a good contribution to the construction of a strong people's naval aviation force suffered some small wounds.

No. 037 J-7EGGH still put down the tail hook in accordance with the training requirements, when the fighter fell steadily, the tail hook was hooked on the second infrared ray, and the intermittent signal immediately appeared on the monitor on the tower, and at the same time the instantaneous photos taken by the high-speed camera also appeared, the attitude of the fighter was very standard, and the position of the rear landing gear touching the ground was perfect, and the staff officer in charge of the post raised his hand and reported loudly: "Report!" Hole three crutches standard landing ship! ”

Old Chen nodded slowly with satisfaction and said, "This kid has the ability." ”

Although he encountered a sudden situation of airspeed monitor failure, Li Zhan still completed the landing maneuver perfectly.

No. 037 J-7EGGH canceled the parachute, so it taxied for more than 700 meters before slowly getting off the runway and driving directly into the maintenance hangar for immediate maintenance by the maintenance personnel.

The speedometer of an aircraft is complex and displays four speeds, airspeed, gauge speed, ground speed, and Mach number. Airspeed refers to the speed of the aircraft relative to the air, which is measured by the airspeed tube (the tube with the tip of the nose of the common nose), the ground speed is easy to understand, and the speed of the aircraft relative to the ground.

Pilots often use gauge speed, which is actually uncorrected airspeed, and usually the error is not very large. The airspeed mentioned in the dialogue between Li Zhan and Lao Chen Tou refers to the corrected speed, not the speed that is often used in ordinary times, also known as vacuum speed or true speed.

This is because the weather conditions in the area where the Fertile Ground Flight Training Base is located are complicated, half mountains and half seas, and most of the time when the fighters take off and circle around the field are flying at sea, and the influence of atmospheric pressure, air density, temperature, and other factors is relatively large, so pilots are required to use airspeedometers, that is, vacuum speeds.

In fact, if the watch speed is not out of order, it will not have a great impact on the normal flight of the aircraft. Just now, Li Zhan quickly calculated the error between airspeed and gauge speed, and then used the gauge speed as the basis to adjust the airspeed of the fighter to the required value. If he didn't have any speed information at all, it would have been difficult for him to be so accurate in such a short period of time. Rao is so, and he can correct the airspeed of the aircraft within two seconds, which is a good reflection of his solid basic control skills.

Zhang Xueyang, Cao Fufei, and Tang Leilei, who were waiting in the flight briefing room, rushed to hear the news, and when they arrived at the maintenance hangar, Zhang Xueyang said with a smile, "Lao Li, your unlucky physique is really evil, and there will be problems in less than ten minutes this morning." ”

"I'm still wondering, the plane has been tested repeatedly on Chengfei's side, and it took great care to transfer to the scene, so the instrument shouldn't be so fragile." Of course, Li Zhan was very puzzled.

The cockpit of No. 037 J-7EGGH is no longer the original tattered appearance, and the cockpit display layout is exactly the same as that of the Thunder, which is much more advanced than many early third-generation aircraft, and even the J-15 that has not yet been fully finalized still uses a hybrid style of instrument and display.

Despite this, people are still accustomed to using words such as "instrument" and "instrument panel" to express the cockpit display interface.

Therefore, if there is an error in a single flight data, it is very likely that there is a problem with the airspeed tube. Li Zhan calculated after discovering the problem that the numerical error between the gauge speed and the airspeed was not an uncorrected error, so it should be possible to rule out the fault of the conversion module.

"Don't worry, it shouldn't be a big deal." Zhang Xueyang comforted.

At this time, Cao Fufei took a deep breath of the fishy wind floating from the sea, and said casually, "Could it be a matter of salt, the salt content of the air here is much higher than that of the inland." ”

Li Zhan subconsciously raised his eyes and looked wronged, his eyes crossed the first training area, and then he saw the sea and the sky.

yes, maybe it's a matter of salt!

"Captain Peng! Is it the failure of the airspeed tube caused by too high salt content? Li Zhan turned his head and rushed to Peng Chubin, the first captain of the maintenance brigade who was leading people to overhaul.

Captain Peng Chubin was stunned for a moment, and then high-fived, "Very likely!" Give me ten minutes! ”

He is also a neat and tidy person.

Cao Fufei was a little dumbfounded at this moment, "I won't be right by me, right?" ”

Li Zhan had already run over to follow the maintenance of the machine, Tang Leilei blinked his eyes and said, "Senior Brother Cao, maybe your luck is even better than that of the first brother." ”

Naval pilots know the importance of anti-corrosion, fighter planes have been flying in the sea and air for many years, and all the naval stations are on the coast, all of which are high-temperature and high-salt environments, and the anti-corrosion performance of carrier-based aircraft must be targeted, and even in the past ten or twenty years, when China's material technology has not been so strong as it is now, the anti-corrosion of carrier-based aircraft is a big problem in front of scientific researchers.

Didn't Cheng Fei take into account that the fighter must have strong anti-decay performance when he made improvements to the 037 J-7EGGH on the ship?

Obviously, they have taken it into account, and they have also done the right thing, such as the fact that the exposed components are all made of materials with good corrosion resistance. The electronic components of the avionics system are all made of materials with good resistance to decay. A comprehensive test was carried out in accordance with the contents of the carrier-based aircraft in the unit's standard guidance for weapons and equipment, and it was re-delivered to the unit after it was confirmed that it met the standards.

Therefore, the possibility of airspeed tube failure due to salt problems is not very high.

Cao Fufei watched Li Zhan simply take off his white labor protection gloves and put his flight helmet aside, and tested the airspeed tube with Peng Chubin, and couldn't help but ask strangely, "Has Lao Li always been like this?" ”

It is not new for pilots and maintenance to overhaul aircraft together, in fact, many pilots often do this in order to increase their understanding of fighters, but it is rare to see a monkey like Li Zhan, and there is no need to waste time on groping for the construction of fighters at his level.

Zhang Xueyang and Tang Leilei glanced at each other, and the former said, "Lao Li is in a hurry, this good start has become a black start, and the training standard has just begun to grope for the plane to break down, and I am also anxious." ”

"Yes, everyone is in a hurry." Cao Fufei believed it to be true, and then said, "Lao Zhang, do you want to ask Mr. Chen, let's fly with J-11A." ”

Zhang Xueyang shook his head, "No, Lao Li said that he couldn't get on the J-11A before he landed in the dark cabin of Dong Sangui Jian-7." ”

Figuring it out is a matter of figuring out the basic training standards, otherwise you won't know how far you've practiced. No. 037 J-7EGGH has a tail hook, and the landing gear has been improved in accordance with the standards of carrier-based aircraft, so relatively speaking, it is relatively objective to use this aircraft to fly standards.

The J-11A is, after all, a land-based fighter.

Tang Leilei was a little embarrassed, and he couldn't bear to tell the truth.

Suddenly, Li Zhan over there gasped, "It's all rusty!" ”