Return to 2000: Captain of the Great Powers

When Qitai was still in the afternoon, Derbyshire, England, thousands of miles away, was still shining with the soft but cool sunshine of the early morning.

In the Rolls-Royce engine test plant, an engine is quietly hanging in the air.There is no cover on this engine, and the components in it can be seen at a glance, showing the brilliance of this artificial industrial essence to the outside world.

Not far from the engine, there were three figures, and their eyes were all on the engine body.

"This is the prototype of the Trent 1000?" It was Song Xinyang who spoke.

Standing half a body ahead of Song Xinyang was an extremely tall, blond man with blue eyes. He was the chief engineer of Rollo-Royce's aeroengine department, Joe.

"Song, it's still close. It needs a period of debugging, at least to ensure the safety of this engine under normal circumstances."

Unexpectedly, this person also spoke Chinese, but his accent was quite obvious.For example, the word Song is a bit similar to 咻, but it can probably be communicated.

"Joe, your Chinese has improved a lot recently." Song Xinyang smiled and said, "If it's just for communication, it's almost enough."

Qiao laughed: "It seems that this language will be used in the future. It is always right to learn it, and it can also be used as a small hobby to pass the time. I heard that Chinese poetry is very interesting. When I learn it well, you have to teach it. My poems in Chinese."

However, Song Xinyang was slightly embarrassed when he heard this.Seeing Song Xinyang's expression, Qiao understood instantly: "I forgot, you grew up here. It seems that I have to ask Yang."

As he spoke, he patted Yang Tian, ​​who was a little cautious behind him.

In front of Qiao and Song Xinyang, Yang Tian behaved very restrained, and when Qiao patted his shoulder, his whole body was tense.

Song Xinyang waved his hand: "Joe, let's talk about the Trent 1000 first. About how long it will take to debug, I have to notify Xu Cang in advance."

"It's hard to say, at least two months."

"Two months, so long?" Song Xinyang obviously underestimated the commissioning time. In his estimation, he still felt that the commissioning could be completed in one month.

Qiao obviously saw Song Xinyang's disappointment: "Why, do you still think two months is too long? I've made a conservative estimate, it may take more than two months."

Song Xinyang sighed: "Now we are very passive, we can grab as much time as we can, and there is nothing I can do if I am anxious."

"Didn't I just say that? At least it needs to be debugged until there is no problem under normal conditions. Didn't you say that Xu Cang will only participate in a real machine test, and you can't let him test it without doing a test machine project. Is there something wrong with the engine? Isn’t that a waste of opportunity?”

The Trent 1000 didn't even have a prototype before. In order to allow Xu Cang to conduct a real machine test, the Rolls-Royce headquarters began to rush to produce a prototype of the Trent 1000.

However, Xu Cang only promised one chance, so Luo Luo headquarters must be cautious.

Song Xinyang heard some problems: "Under normal circumstances, what about abnormal conditions? If the prototype is tested, there is a high probability that something will go wrong?"

"Who said there is a high probability?" Joe asked back.

"Huh? Isn't it, the prototype works so well."

Qiao laughed: "It's not a high probability, it's a certainty, something will definitely go wrong. I haven't seen the Xu Cang you mentioned, but from what I know, but from what I know now, it's really powerful. But it’s not that far, is it?”

Qiao saw some information about Xu Cang's handling of special situations. He himself can't fly, but his eyesight is very strong, so he can see which is good and which is bad.He admitted that Xu Cang was very strong, but it was not to the point where he should bet the Trent 1000 on this person.

You know, if something goes wrong, not only the prototype of the Trent 1000 will be scrapped, but also the Airbus 330 used as a test machine will have to be accounted for, and the direct loss will be quite large.

Not to mention, if the news of the failure of the Trent 1000 test spreads, it will have an extremely negative impact on the company's stock price.

From the perspective of chief engineer Joe, he actually felt that the headquarter's push for the real machine test of the Trent 1000 was a bit desperate, but he didn't really agree with it.

"Look at this." Song Xinyang took out his mobile phone, clicked on it a few times, clicked on a video, and handed it to Joe: "This is an internal video, and it shows Xu Cang landing at a mountainous airport. One engine stalled and the other surged badly."

"What?" Joe took the phone, watched all the videos on the phone for more than a minute, and finally exclaimed: "Holy Fuck! How the fuck did he do that?"

As soon as the words came out, Qiao felt a little rude in his words: "Sorry, I got a little excited. This is what Xu Cang did, and that is indeed enough for the headquarters to bet on him."

Sure enough, it wasn't anyone, no matter what country they were in or what language they spoke, as long as they were knowledgeable and had seen Xu Cang's landing in Yulong, they would only be amazed.

Qiao returned the phone to Song Xinyang, and it seemed that the aftertaste was still there, and the landing could indeed be savored carefully.

"The higher-ups decided to take a gamble not just because they watched this video. Xu Cang's value has been initially verified. At least Boeing intends to hire him as the chief technology officer." Song Xinyang put the phone back in his pocket: "For Boeing We can still trust our vision.”

Qiao laughed and said, "But now the two sides may not be able to get together."

"How to say?" Song Xinyang obviously updated the information channel relatively slowly.

"A few days ago, there was a research report published in the circle, which pointed out that there was a problem with the structural strength of the fuselage of the 737 series aircraft. The arguments contained a lot of references to the special situation Xu Cang encountered at Jianchuan Airport, and the references were quite detailed. I It is reckoned that Boing must doubt whether Xu Cang has provided a considerable amount of content. There may be no evidence, but suspicion is absolutely indispensable. Once the seeds of doubt are planted, it will not be easy to eliminate." Qiao stretched his waist: "So Ah, it would be nice if the two sides could maintain a peace of performance, but it’s impossible to be the chief technology officer.”

Song Xinyang has been coordinating the Trent 1000 recently, and he really didn't pay much attention to the outside world: "That's actually a good thing for us."

"Yeah!" Joe shrugged: "My friend at Airbus told me that representatives of GM and Lockheed Martin approached the leadership of Airbus headquarters and asked to block Xu Cang's Spring and Summer Airlines. It seems that Not only Boeing, but General Motors and Lockheed Martin are also interested in Xu Cang."

Song Xinyang's eyes brightened: "It's so good, doesn't this prove the value of Xu Cang? But, what are GM and Lockheed Martin looking for Xu Cang for?"

"The GENX engine of General Motors and the ramjet engine of Lockheed Martin's HAWC project need a reliable tester, maybe this is the reason." Seeing that the opponent is in a hurry, Joe is quite comfortable: "Tsk tsk tsk, it seems that it is not It's just that we're ants on the hot pot. Hey, that's a good use of slang."

Qiao seemed in a good mood: "Song, if the Trent 1000 test is really effective, then we can use it to start a more comprehensive cooperation with Xu Cang."

"Hmph, didn't he even give him the three-rotor and other technologies, and even gave up the distribution rights in the Asia-Pacific region, so it's not considered a cooperation?" Song Xinyang was very dissatisfied.

Technology transfer aside, it has little to do with him.But the distribution rights in the Asia-Pacific region are an important weight in his hands, and he can exchange them for huge profits. As a result, they were directly given to Xu Cang, and Song Xinyang suffered a lot.

"No, that's not enough." Qiao patted Song Xinyang on the shoulder: "I learn Chinese because I know that the Chinese market will become an extremely important part of the world's civil aviation landscape in the future. Our allies may be born there. GM And Pratt & Whitney are too strong now, we must have an ally to share the pressure for us. This ally should not be too strong, nor too weak, I think Xu Cang is just right. However, the premise of everything is that he can pass the Trent 1000 to come Prove your worth."

Song Xinyang felt a little shocked, but considering that although GM and Pratt & Whitney have a competitive relationship, they both have a common hostility towards Luo Luo, and the pressure on Luo Luo is indeed too great.

However, China has a huge market and has a relatively strong willingness for self-research. It is best to support a relatively strong local aviation development company that relies on Rolls-Royce to some extent.

Firstly, it can share the firepower for Luo Luo, secondly, it can be used as a breakthrough to gain more Chinese market, thirdly, it can also win Xu Cang's favor, and deepen the follow-up cooperation between the two is indeed a lot of benefits.

However, as Qiao said, the premise of everything is that Xu Cang can pass the Trent 1000 test.

Over the sky near Qitai Airport, a white-painted plane is passing through the canyon, and it is now sticking to the canyon to return to Qitai Airport.

"Xu Cang, how did you do it? On the radar screen, your signal point is almost not moving." Now the most difficult hurdle has passed, so that the entire tower control room is full of joy, Wang Li even chatted with Xu Cang on the radio frequency.

Xu Cang is also in a good mood at the moment. During the operation just now, the palm of his right hand holding the steering wheel was all sweaty.In theory, increasing thrust, utilizing strong headwinds, and delaying airflow separation through the leading edge device can greatly delay the timing of the actual trigger of the post stall.

But theory is only theory after all.A fighter jet can test it on the verge of stalling from time to time. After all, its maneuverability is not at the same level, but who would do this on an airliner?
Even Xu Cang would not casually perform a stall maneuver on a passenger plane.In fact, even if Xu Cang wanted to, he couldn't do it in most cases.When the elevation angle of a large airliner reaches a certain level, the nose of the aircraft will pitch down due to the loss of lift, and it is impossible to bring Xu Cang to such an exaggerated situation just now.

It can only be said that just now Xu Cang was able to gather together at the right time, place and people, coupled with incomparably fine manipulations to complete this shocking near-radius-free maneuver in the air.

Chen Guoli was making some simple approach preparations, but the corner of his mouth could not stop smiling.Although Xu Cang was responsible for this matter, as long as he participated in it, he would be able to share a lot of credit.He has already achieved success in Tiandong Airlines, and he has no personal interest needs. It is just that he is lucky enough to participate in such a major event. Chen Guoli feels that his life value has risen to a big level.

Flying backwards along the single-engine procedure is definitely not possible under normal circumstances, but if you are in a hurry, you can't control it.However, at this time, the aircraft must strictly follow the single-engine procedure route and abide by the relevant altitude restrictions.

The only good thing is that as long as the initial climbing gradient of the program does not exceed 5.2%, it is no problem to go down with the most standard three-degree glide angle in the end.

Of course, if the single-engine program can set the initial climb gradient to more than 5.2%, it is estimated that the bureau will not approve it.The initial climb gradient of 5.2% is quite strenuous for a single-engine aircraft, unless it is a completely empty aircraft.

However, in actual operation, in addition to adjusting the machine, how many of them can fly with no load?
You know, the gradient of 5.2% almost requires an ascent rate of [-] feet per minute, which is really difficult for a single-engine ascent rate of [-] feet per minute.

Fortunately, there are no extreme situations, and the follow-up is relatively easy.Because Xu Cang’s preset glide trajectory is the most standard three-degree glide angle and 5.2% glide gradient, which can just cover the trajectory of the single-engine program, that is, always ensure that the aircraft will always be on the profile of the single-engine program.

In this way, in theory, the vertical interval on the terrain can always be guaranteed.

However, this is not a real approach procedure after all, but a single-engine departure procedure flying backwards, so there is a relatively high possibility that it will cause a terrain warning.

Terrain warning depends not only on the vertical separation between the aircraft and the terrain, but also on the approach rate.For example, if the vertical separation between the aircraft and the terrain is [-] feet, but the aircraft is climbing upwards, then there may be no terrain warning, because the terrain warning system judges that the movement trend of the aircraft will increase the vertical separation.

But if the plane is descending, then there may be a warning, and the reason is the opposite of the climb just now.

Therefore, when designing the approach procedure, especially the procedure route of the final landing phase, it is necessary to consider the situation that the terrain warning may be caused by the normal final descent, instead of just ensuring the terrain separation.

Of course, Xu Cang didn't care about these things in the future, and he might have to manually turn off the terrain warning in the future to prevent some of his mental calculations and operations from being affected.

Moreover, the side of runway 28 is relatively short due to the existence of the main Tianshan Mountains, only about seven nautical miles.However, in order to ensure a safety margin on the horizontal separation, the procedural route turned right at five to six nautical miles.

This caused Xu Cang to finally approach the fifth side of runway 10 at a distance of more than five nautical miles. This short fifth side is close to the main line of Tianshan Mountain, so there is still a big challenge in terms of control precision.

Theoretically, Xu Cang could figure out the slide in his head, after all, he had already done it once in Jakarta.However, the airflow at Qitai Airport was very unstable, and the ground speed varied greatly, which placed too much burden on Xu Cang's mental calculations.

In the time in Jakarta before, the airflow near this field was relatively stable, and the ground speed didn't change that much, so Xu Cang's mental calculation pressure was reduced to a certain extent.But at Qitai, the pressure on Xu Cang's mental arithmetic increased sharply.

In any case, Xu Cang is not a computer, and it is really difficult to control it with distraction.

However, Qitai Airport does not have ILS guidance on runway 10, nor does it have relevant approach procedure diagrams, but it does exist on runway 28, and there is also a reference table for height-to-distance ratio on the approach diagram.

Although the direction is reversed, the glide angles on both sides are the same, so the reference table for the height-to-distance ratio is also the same, so that Xu Cang can be used to assist in the correction, thereby greatly reducing the pressure on Xu Cang.

Of course, the anchor point for such operations is still on the head of runway 28.There is a deviation from the head of runway 10. However, the reverse three-degree glide trajectory emanating from the anchor point of runway 28 is the standard glide trajectory emanating from the head of runway 10.Therefore, even if Xu Cang uses the head of runway 28 as the positioning point, the actual altitude will only be higher than the three-degree glide angle trajectory of runway 10.

It's okay to be taller, as long as it's not lower.

Moreover, Xu Cang didn't intend to land on runway 10 in the end, but eventually turned around and turned back to runway 28, so even if the height is higher, it will not affect the final landing.

That's right, this is what Xu Cang came up with last night.Everything has been thought out, and it's all operational, but in the end it's sideways and won't comply with regulations.

However, the single-engine program of Qitai Airport has left the design institute at a loss. If they still find a solution within the scope of regulations, it can only be a dead end.

"Now let's talk about the mountain pass on the left." The follow-up operations were relatively simple for Xu Cang, and Chen Guoli helped him with chores, so naturally he didn't need to waste his time, and even started to explain to Wang Li.

Xu Cang spoke very simply, but roughly described his thoughts.

Wang Li in the control tower only thought it was wonderful when he heard about it.To be honest, the biggest obstacle to the single-engine program is the downdraft.The downdraft jets come from the southwest. As long as the downdraft jets exist, the strong impact horizontal airflow of the mountain pass will also exist, and the two are associated.

However, if the north wind is blowing, naturally you cannot do this action.However, in the case of the north wind, although there is no natural moat like the Tianshan Mountains, there are still many lower mountain ranges, which can weaken the north wind to the greatest extent.If you really reach the Qitai area, it will basically be out of the question.

So, after thinking about it, Xu Cang's method is really watertight, and he has given the steps of the preparation work, and he has done it, so there is the possibility of optimization and promotion in the future.

Compared to Wang Li who happily chatted with Xu Cang, Yue Sheng and Ma Cheng seemed not so happy.However, Ma Cheng is not the same as Yue Sheng.Ma Cheng was mainly inclined to be indifferent, while Yue Sheng was really a little unhappy.

Unlike Yue Sheng and Ma Cheng, who didn't respond very enthusiastically, Zhou Yanping seemed to be in high spirits, and occasionally inserted a few words into the radio, his eyes glowing like flashlights.

It's hard for non-pilots to understand the excitement of seeing such a masterpiece.

Just as Wang Li and Zhou Yanping were excited, a correspondent suddenly ran over from the corner and reported to Wang Li: "Station Master, the field management reports that the runway is covered with snow, and the preliminary measurement has exceeded 13 mm."

"Huh?" Wang Li, who was still immersed in excitement, stopped suddenly, and turned to look at the correspondent: "How thick is the snow on the runway?"

"The precise result has not yet been obtained, but it is certain that it is more than [-] millimeters. The preliminary feedback result is [-] millimeters, and it is still increasing."

"Eighteen millimeters of snow?" Wang Li was startled, walked to the window, looked down, and saw that the entire runway was already covered in white.The sky is covered with heavy snow, and it has been covered with such a thick snow in a short time, and the speed is too exaggerated.

Zhou Yanping frowned: "The [-]mm of snow, it seems like it won't be able to fall."

The reason why the correspondent deliberately focused on the value of [-] millimeters was because according to the regulations, once the snow area on the road exceeds [-] millimeters, the aircraft will be prohibited from taking off and landing.

The most important thing is that the thickness of snow on the road surface is not the critical [-] millimeters, but far exceeds this value, and it will increase in the future.

Just now, I was focused on the things in the sky, and didn't notice the situation on the ground at all.

However, the situation on the road surface was not so exaggerated when it took off just now. How long has it been?No one can think of it.

According to the CAAC regulations, then Xu Cang would definitely not be able to fall.However, the current situation is special, Wang Li will naturally not directly prohibit Xu Cang from landing, and if Xu Cang does not fall off the stage, where else can he fall?
Wang Li turned his head and looked at Bi Lin who was already deep in thought: "Old Bi, what do you say? You always have an idea?"

"Eighteen millimeters of snow is too thick, and it's too dangerous to force it to land." Safety cannot be guaranteed, not to mention that the wind volume at Qitai Airport is already exceeding the standard, but the wind cannot exceed the standard, and the snow on the road also exceeds the standard. This is not a matter of haste, but courting death.

If it was only thirteen millimeters, Bi Lin might have recognized it by pinching his nose, but eighteen millimeters would be too exaggerated, and according to the site staff, the snow accumulation continued to increase.

It has not yet reached the point where the mountains and rivers are at the end of the river, and absolutely should not take such a big risk.

Bi Lin glanced at the radar screen, the plane was not far away from the field at this moment, but it was not imminent, and there was still a little room for thinking, so he replied: "You are the leader of this airport, how long will it take to clean it up?" track?"

Wang Li did not answer immediately, but looked at the correspondent.The correspondent seemed to have already prepared: "Station Master, as the field manager said just now, it would take too long to clean the entire runway, and it would definitely take more than an hour. However, if only the ground terminal is cleaned, two It can be decided in 10 minutes. If there is enough time, they can also clean up the middle end as the situation depends."

Indeed, the biggest impact of snow on the aircraft is the touchdown.As long as the grounding end can land steadily, and the speed of the plane slows down later, even if the plane skids, at worst it will slowly rush out of the runway, at least there is a high probability that life can be saved.

"Twenty minutes?" Wang Li confirmed: "Contact the field manager, are you sure about two ten minutes?"

There is no room for mistakes in this kind of thing, Xu Cang is floating in the sky alone, if he prepares in 10 to [-] minutes and fails to finish it on time, it will easily go wrong.

Wang Li didn't want the field affairs to be aggressive, but only wanted an exact time.

However, the correspondent didn't even ask: "Station Master, the field manager took the initiative to tell me. It's definitely enough to give them 10 minutes."

Seeing that the correspondent was so determined, Wang Li nodded and didn't say anything. It seemed that the field manager was already prepared in his heart when he reported.

"Wang Li, your soldiers are very good!" Even Bi Lin couldn't help admiring the situation.

Wang Li grinned: "Then Mr. Bi will let Xu Cang spend 10 minutes in the sky?"

"It's time to turn around. However, Qitai Airport is surrounded by mountains, and he can't circle around with a single engine." Bi Lin thought for a while, then waved to Wang Li, motioning Wang Li to give him the microphone.

Wang Li was very discerning, and immediately offered the microphone.

"Xu Cang, the snow on this field is serious, and the initial feedback has reached 10 millimeters. Now the crosswind on this field has already exceeded the standard, and [-] millimeters of snow cannot fall. The field staff responded within [-] minutes. You can clean up the grounding end, you can spend some time in the sky after descending to the field and hovering in place. However, pay attention to the circle radius, put all the flaps down, and try to reduce the turning radius.”

The area with the fewest obstacles around Qitai Airport is naturally the area near this field.Therefore, Bi Lin asked Xu Cang to hover over the field.However, the circling can't be too far away, otherwise, if you leave the safe zone of the field, you might have to hit a mountain, which is too dangerous.

The purpose of lowering the flaps is to reduce the speed as much as possible, so as to reduce the turning radius.

However, Xu Cang is single-engine now, if the flaps are lowered instead of the landing gear, there may be a landing gear configuration warning.However, Bi Lin believes that Xu Cang can handle these good problems well.

Soon Xu Cang's voice came back on the radio: "If it's [-]mm, it really can't fall. Okay! I'll go down to the field and then circle up, huh?"

At the beginning, Xu Cang had already agreed to Bi Lin's proposal, but at the end Xu Cang suddenly let out a small sigh, which made Bi Lin's heart tighten, and he was very worried that things would change.

About 20 seconds later, Xu Cang didn't reply, which made Bi Lin even more worried, and eagerly asked, "Xu Cang, what's the matter, is there any question?"

This time, Xu Cang finally had a voice, but there was a trace of solemnity in that voice: "Dean, it seems that I can't wait for 10 minutes. There is something wrong with my No. 5 engine, and I can't wait for [-] minutes!"