Great Power Fighting Falcon

People always have a nostalgia complex. After flying too many airplanes, they will miss the earliest models they flew. This is almost the case with Li Zhan now. I already had some experience when I came here, and now I have a different feeling when flying in a 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 can't see anything at all. However, pilots may confuse starlight with ground lights during night flights, and the consequences can be disastrous. If the dark cabin is not covered tightly during flight, the pilot will easily regard the light-transmitting side as the sky due to inertia of thinking, which will also have fatal consequences.

As a means of instrument training, dark cabin flying requires pilots to focus all their attention on instrument information and ground instructions, rather than trying to find gaps to look out. Following instructions from the ground and flying entirely with instruments is a basic skill that a pilot must possess.

Regarding the ship landing, Li Zhan made a number of improvements and changes, including simulating the maritime environment and arranging three sudden commands requiring short time and large flight movements and two low-altitude passes.

What Li Zhan needs to do is to conduct two hours of uninterrupted simulated landing on the ship under the conditions of flying in a dark cabin. On average, once every ten minutes, he needs to do it ten times. Finally, he will discuss and analyze based on the final results. In order to obtain training standards.

Now everyone doesn’t know what standards pilots must reach in the dark cabin flight simulation landing subject before they can enter the next stage of training, so Li Zhan needs to fly out.

As long as he is here, the leader will not consider other people, and others will not fight for it. They can't get it anyway.

Li Zhan was of course very happy. Last year's flying hours dropped significantly compared with the previous one. Since the beginning of spring this year, he has spent three days fishing and two days drying nets. If he doesn't work hard, he will go home and inherit tens of millions of dollars.

Flight hours are the most intuitive and obvious reflection of pilot qualifications.

Lao Chentou gave Li Zhan instructions in a step-by-step manner. Li Zhan strictly followed the instructions to control the aircraft. The ground radar system continuously measured the real-time position of No. 037 J-7EGGH. Once any deviation was found, the pilots were immediately notified, and dark cabin flight training was organized with ordinary troops. No different.

The difference is that Li Zhan drove the plane very fast, and the WS-XX turbofan aero engine with a sharp roar provided steady power, pushing the eight-ton fighter plane about three meters from the west side of the tower diagonally above. Flying over at high speed at a height of 100 meters. This made the tower commanders who were accustomed to the steady style of training feel a little overwhelmed.

Li Zhan's movements in the sky are very bold. When adjusting his posture according to instructions on the ground, he usually chooses very violent but most efficient maneuvers to complete. For example, when descending to altitude, he simply performs a 360-degree turn to reach the designated altitude quickly, instead of using the angle change of the horizontal tail to slowly lower the altitude of the fighter aircraft.

As for a fighter jet, it must have the style of a fighter jet, otherwise it will be different from a transport aircraft.

During the second clearance, Li Zhan lowered the landing gear. After the signalman not far from the commander confirmed through manual observation that the front and rear landing gear had fallen normally, he immediately reported it to Lao Chentou.

Then came the "ship landing and go-around".

After two passes, the landing had to be completed within ten minutes. There was plenty of time, and Li Zhan accelerated his flying speed. At this pace, he could "land on the ship" at least fifteen times in two hours. Lao Chentou was satisfied with Li Zhan's initiative.

The No. 037 J-7EGGH has added a standard glide line for the third time. The standard glide line given by the landing radar is presented to the radar operator through the display screen. A few years ago, it was a radar oscilloscope tube, and even now a small number of troops are still using it. The radar operator issues adjustment instructions to the pilot based on the specific conditions of the aircraft, and the pilot passively executes the entire process. This passive guided landing method is Lao Maozi's technology. Our military has used it for many years, but the army has gradually begun to adopt the landing guidance technology of civil aviation. The active type, a technology from China, has been used by civil aviation.

"Dongsanguai, you touched down quickly, pay attention to your speed." Lao Chentou reminded Li Zhan when he saw that the entry speed of No. 037 J-7EGGH exceeded 30 kilometers.

The ground speed of the No. 037 J-7EGGH was 30 kilometers faster than the regulation. This is not a good sign.

Li Zhan quickly adjusted, looked at the airspeed number, frowned slightly, and replied, "Tower, there should be something wrong with my airspeed indicator. The reading is normal."

Old Chentou was shocked and said quickly, "Listen to my guidance and stay in shape."

The airspeed indicator showed the prescribed landing speed, but the actual landing speed of the fighter jet was 30 kilometers faster.

It wasn't a big problem. The fighter plane maintained its posture very well. Based on experience, Li Zhan slowly closed the throttle and asked the tower, "Tower, what's the speed now?"

"You have to slow down for another five kilometers, don't worry." Old Chen's tone was very steady.

The No. 037 J-7EGGH, which is five kilometers away from the runway, is still high and far away, so there is no need to be nervous at all. It's just an error in an instrument. Once the problem is discovered, there are many solutions. At this time, the pilot’s experience comes through.

"Okay, hold on steady, maintain the pitch angle and maintain the descent rate." Old Chentou nodded with great satisfaction and instructed Li Zhan.

Li Zhan was too familiar with the J-7, especially the No. 037 J-7 EGGH. In just two seconds, he used his experience to stabilize the fighter's airspeed at the specified speed, no more, no less, very accurate. In order not to change the pitch angle of the fighter plane, he only made adjustments through the throttle, which also highlighted his extremely skillful manipulation of the throttle lever.

After entering three kilometers, the No. 037 J-7EGGH, which had already lowered its landing gear, slowly changed from a slightly bowed posture to a level flying posture. However, the fighter plane still maintained its original descent rate and steadily headed towards the blocking cable on the runway. The area falls down.

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

Obviously, there was a problem with the airspeed indicator and subsequent training could not continue.

Old Chentou told Li Zhan: "Land normally, suspend the flight, and inspect the aircraft."

"Dong Sanguai understands, land normally."

Li Zhan felt a little regretful. The two-hour flight that he had finally waited for ended in less than ten minutes. He held back his energy and wanted to contribute to the construction of a strong People's Naval Aviation Force. My heart was slightly traumatized.

No. 037 J-7EGGH still lowered its tail hook according to training requirements. When the fighter plane landed steadily, the tail hook was hooked on the second infrared line, and intermittent signals immediately appeared on the monitor on the tower. At the same time, instantaneous photos taken by high-speed cameras also appeared. The posture of the fighter aircraft was very standard, and the position of the rear landing gear touching the ground was simply perfect. The staff officer in charge of the post raised his hand and loudly reported: "Report! Dongsanguai standard landing!"

Old Chentou nodded slowly with satisfaction and said, "This boy is capable."

Although he encountered an unexpected situation where the airspeed indicator failed, Li Zhan still completed the landing maneuver perfectly.

No. 037 J-7EGGH canceled the deceleration chute, so it taxied for more than 700 meters before slowly leaving the runway and driving directly into the maintenance hangar for immediate maintenance by the maintenance staff.

The aircraft's speedometer is complex and displays four speeds: airspeed, surface speed, ground speed and Mach number. Airspeed refers to the speed of the aircraft relative to the air, which is measured by the pitot tube (the pointed tube on the common nose of the aircraft). Ground speed is easy to understand, the speed of the aircraft relative to the ground.

The indicated speed commonly used by pilots is actually the uncorrected airspeed, and generally the error is not very large. The airspeed mentioned in the land-air dialogue between Li Zhan and Lao Chentou refers to the corrected indicated speed, not the usually used indicated speed, also known as true speed or true speed.

This is because the weather conditions in the area where the Fertile Land Flight Training Base is located are complicated, with half a mountain and half a sea. When fighter jets take off and circle around the field, they spend most of the time flying over the sea. The influence of atmospheric pressure, air density, temperature and other factors is relatively large, so Pilots are required to always use the airspeed indicator, which is true airspeed.

In fact, if the speed indicator does not malfunction, it will not have a great impact on the normal flight of the aircraft. Just now, Li Zhan quickly calculated the error between the airspeed and the indicated speed and then used the indicated speed as a basis to adjust the fighter's airspeed to the required value. If he could not obtain any speed information at all, it would be difficult for him to achieve such accuracy in such a short period of time. Rao was able to correct the aircraft's airspeed within two seconds, which reflected his solid basic control skills.

Zhang Xueyang, Cao Fufei, and Tang Leilei who were waiting in the flight briefing room rushed over after hearing the news. When they arrived at the maintenance hangar, Zhang Xueyang said with a smile, "Old Li, you have such a bad luck constitution. You left the hospital in less than ten minutes this morning." question."

"I'm still wondering. The aircraft was tested repeatedly at Chengdu Aircraft Corporation of China and underwent careful health care before being transferred there. The instruments shouldn't be so fragile." Li Zhan was of course puzzled.

The cockpit of No. 037 J-7EGGH is no longer the same tattered appearance as before. The cockpit display layout with one level and three bottoms is exactly the same as that of the Xiaolong. It is much more advanced than many early third-generation aircraft, and even those few are not yet complete. The finalized J-15 still uses a hybrid style of instrument and display.

Despite this, everyone is 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 pitot tube. Li Zhan calculated after discovering the problem that the numerical error displayed between the gauge speed and the airspeed was not an uncorrected error, so the failure of the conversion module should be eliminated.

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

The unfavorable start was actually a small blow to the confident four-man team for the concealed cabin landing test. At this time, Cao Zuofei took a deep breath of the fishy wind blowing from the sea and said casually, "Could it be?" The issue with salt, the air here is much more salty than inland.”

Li Zhan subconsciously raised his eyes, looking across the first training area and saw Hai Tian Yise.

Yes, it may be a salt problem!

"Captain Peng! Is the pitot tube malfunctioning due to excessive salt?" Li Zhan turned and said to Peng Chubin, the first detachment leader of the maintenance team who was leading the maintenance team.

Captain Peng Chubin was stunned for a moment, then gave a high-five, "It's very possible! Give me ten minutes!"

He is also a neat person.

Cao Fufei was a little dumbfounded at this moment, "You won't be fooled by what I said, right?"

Li Zhan had already ran over to follow the maintenance of the machine. Tang Leile blinked and said, "Brother Cao, maybe you have better luck than Brother 1."

Naval pilots all know the importance of anti-corrosion. Fighters have been flying in the sea and air for many years, and all sea and airport stations are on the coast. They are all in high-temperature and high-salt environments. The anti-corrosion performance of carrier-based aircraft must be targeted. Even in the past ten or twenty years, In 2000, when my country's material and process technology was not as strong as it is now, the anti-corrosion of carrier-based aircraft was a big problem for scientific researchers.

When Chengdu Aircraft made shipboard improvements to the No. 037 J-7EGGH, didn't Chengdu Aircraft consider that the fighter aircraft must have strong anti-corrosion properties to operate in special environments such as high temperature and high salt?

Obviously they have taken this into consideration, and they have also taken relevant measures. For example, all exposed components are made of materials with good corrosion resistance. The electronic components of the avionics system inside are also made of materials with good corrosion resistance. Comprehensive testing was carried out in accordance with the carrier-based aircraft content in the army's weapon and equipment standard instructions, and it was only redelivered to the army after it was confirmed that it met the standards.

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

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

It is nothing new for pilots and maintenance personnel to perform maintenance on aircraft together. In fact, many pilots often do this in order to increase their understanding of fighter aircraft. However, it is rare to see someone as eager as Li Zhan, and at his age There is no need to waste time on exploring the structure of fighter aircraft.

Zhang Xueyang and Tang Leilei looked at each other. The former said, "Lao Li is just impatient. This good start has turned into a bad start. The plane broke down just after we started to explore the training standards. I am also worried."

"Yes, everyone is anxious." Cao Fufei believed it and said instead, "Old Zhang, could you please ask Mr. Chen for permission to fly with the J-11A?"

Zhang Xueyang shook his head, "No, Lao Li said that you can't board the J-11A before you figure out the hidden compartment of the Dongsanguai J-7 and land on the ship."

To understand clearly is to initially explore the basic training standards, otherwise you will not know how far you have practiced. The No. 037 J-7EGGH has a tail hook, and the landing gear has all been improved according to the standards of carrier-based aircraft, so the flying standards for this aircraft are relatively objective.

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

Tang Leilei was a little embarrassed and tried not to tell the truth.

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