Chapter 240: The scheming is so terrifying
Chen Yi originally wanted to say that if he couldn't go down, forget it, and change to the next subject.
He looked at Xu Qing's operation method again just now, and this time he really saw it clearly, there was absolutely no problem, and if there was a problem, it was even with him, the chief teacher.
Will there be a problem with the chief engineer? Obviously impossible!
The only possibility is that there is something wrong with the simulator! Since it is an objective problem, then there is no need to dwell on it, Chen Yi plans to get past this fault and then do other aspects of the inspection.
Unexpectedly, Xu Qing misunderstood, thinking that Chen Yi was about to announce the result, so in a hurry, he quickly stopped it.
The result of not passing was said, but it was not easy to take it back, Xu Qing could only block the words before Chen Yi made a decision.
"Ten minutes? Are you sure 10 minutes is enough? Chen Yi didn't want to waste any more time on this subject in his heart, the two-hour inspection time was fixed, and now there was not much time left.
The reason why Chen Yi asked this question was that the plan just now consumed nearly twenty minutes, and in order to save time on the second attempt, Chen Yi granted Xu Qing permission to keep them at a low altitude and high speed, even if it took more than ten minutes, not counting the time on the five sides.
Could it be that Xu Qing wants to maintain a high speed of 300 knots at a low altitude and keep speeding to the five sides? Wouldn't it be excessive?
To be honest, if it was only ten minutes, Chen Yi would be acceptable, but he needed a reason!
"Tell me about your plan first!" Chen Yi said.
Yan Zhen and Wang Liang both pricked up their ears, waiting for Xu Qing's "high theory"! Xu Qing just said that they would change the method, and they were also quite curious.
Chen Yi asked Xu Qing to talk about his thoughts, but Xu Qing showed a trace of shyness, and this sudden "shame" was really disgusting to Chen Yi.
"If you have something to say, don't show such a disgusting expression!" Chen Yi urged.
Xu Qing said with a smile, "What other ways can traditional navigation be, isn't it relying on VOR to fly!" I just changed the simple and crude way. ”
Simple and crude?
Chen Yi's mind flashed, and a trace of disgust appeared on his face: "You don't want to fly straight to this field, right?" ”
"That's right! How easy it is to fly non-stop to this field. Xu Qingtian shamelessly admitted that "fly straight to the field, and then fly the reverse channel, the position of the FAF point is five sides and seven nautical miles, let's fly the reverse channel and fly ten nautical miles, and then turn right continuously and fly to 050, so that we should be able to intercept the blind landing." ”
Chen Yi's cheeks twitched a few times, Xu Qing's plan was indeed simple and easy to operate. But if it's so simple, why not use it in the first place? This brings us to the question of practical implementation.
It's not that the pilots of this scheme are complicated to operate, but that other aircraft should be considered in real flights.
Xu Qing once encountered the problem that the landing gear could not be put down, and the crew considered wanting to cross the field at a low altitude and let the tower visually observe the landing gear. That time, Xu Qing and the others also approached according to the standard, flew to the decisive altitude, and then kept a low altitude for the tower to observe visually. Instead of ignoring the three-seven-twenty-one, fly directly over the field and then spiral down.
After all, the airport is not opened by your home, and AYDAY has not been announced, so why should you fly blindly without principle.
Why did Xu Qing and Yan Zhen's first plan just now follow the standard? Because if you fly like this, it will be well controlled. In fact, unless there is an emergency, where will the airspace really be cleared, allowing you to play freely.
City C does not have a direct flight to the main field, and then the reverse course of the program, and the five-sided flight is so low, then others don't want to fly.
Yan Zhen admired Xu Qingzhen very much, such a shameless proposal could be said, he estimated that it was better to fly straight to the field, and then keep circling and descending, anyway, there are no obstacles in this field, until you look at the field, come to a visual approach, isn't it beautiful?
Yan Zhen couldn't help but feel a trace of guilt, how could he be so shameless?
"Forget it, forget it, you toss! Anyway, it was ten minutes at most, and when it was timeout, I signed the inspection failure notice directly! However, this time we are going to ask for three chapters of the law. You can only fly according to the rules, just now you were allowed to fly at low altitude and high speed, but now it can't. As long as you don't follow the rules, you won't pass! After Chen Yi finished speaking, he waved his hand and said, "Time!" ”
Chen Yi also wanted to set a bottom line for Xu Qing. Just now, in order to save time, he allowed Xu Qing to exceed the speed of two hundred and fifty knots below 10,000 feet. But this time Xu Qing took the initiative to fly again, but he didn't let him arbitrarily, he was always so bottomless, he couldn't cultivate Xu Qing's unruly style!
Xu Qing nodded and reset the clock, he had to hurry up. Immediately flew towards the CTU and at the same time began to descend altitude. When they went back to flying just now, they had gone up to a go-around altitude of 1,500 meters, and now they need to go directly down to the height of the intercepted glide path. However, the altitude margin is quite large, only 300 meters, and you can go down slowly.
"Ten minutes, time is still a little short." Xu Qing secretly calculated the time in his heart. He needs to be about ten nautical miles away from the CTU now, and he will fly ten nautical miles in the reverse course later, and then turn around and approach in the forward direction for another ten nautical miles, and the distance of thirty nautical miles is almost ten minutes, which is still not counting the turning time. This continuous turn is more than 180 degrees!
Thinking of this, Xu Qing couldn't help but regret it. At that time, he was in a hurry, and casually shouted a ten-minute time limit, but now that he thinks about it, he really has a hole in his brain, and it is better to shout for more than fifteen minutes.
However, Haikou has already boasted, it's not the speed of light to slap yourself in the face, hurry up.
Yan Zhen saw that Xu Qing was now flying directly to the CTU, and he was also calculating in his heart whether he could complete this approach in ten minutes. His mental arithmetic results are very similar to Xu Qing's, and the time is very tight. At this time, the little devil in his heart began to move. Do you want to give Xu Qing a mouthful of his even more shameless plan? That solution takes even less!
After thinking about it, Yan Zhen still dispelled this idea. This plan came out of the mouth of one of his captains, and he was afraid that he would leave a bad impression in front of the two chief engineers, and he should not give up his food because of choking.
Xu Qing flew all the way to the CTU, and when he approached the CTU, the direct course changed to 204.
"You're not going to change course? Just fly with a course choice? Yan Zhen saw that Xu Qing had not modified the course, and he had not connected the vor/loc after turning around.
"Don't get it, it's easy to choose how easy it is to fly directly to the course." Xu Qing is quite a dead pig who is not afraid of boiling water. Just now, everything flew accurately, and he couldn't intercept the blind landing, which broke Xu Qing's young heart. I won't spend this time on this, the error is big, anyway, it depends on the will of God.
Yan Zhen gasped, don't look at it like this. That's not how a dead horse is a live horse doctor, I should still be able to save it, don't give up the treatment so casually!
In order to save time, Xu Qing did not put the flaps during the reverse channel, that is, he kept it in a smooth state, so that he could maintain a high speed for a long time. The maximum speed here is only two hundred and fifty knots, and no matter how big it is, it will trigger the warning of high speed at low altitude.
Why do I have to fly over the FAF before I can make a turn? Wouldn't it save time if you had turned back earlier to fly a little less distance?
Here it is due to the interception of the slide!
According to the blind descent map, holding 1,200 meters at the FAF point can be right on the glide path, which is the final approach positioning point of the so-called interception slideway.
Then some people probably have to ask, why not go down to a lower altitude and then intercept the glide path after the FAF point? That's because of the obstacles!
When you are about to land on a plane, you should sometimes be able to see the peaks on both sides of the five sides, and the five sides are between the peaks on both sides. That's why pilots must strictly follow the procedures.
Procedures are designed to ensure that the aircraft is safe and sound within standard procedures, but it is difficult to say what safety issues will arise outside of the procedures.
Just now, Xu Qing also said that after the reverse channel, a continuous turn is required, as long as one turn means to deviate from the five sides, and the deviation from the five sides means to deviate from the protection area.
In fact, even if Xu Qing turns when he is ten nautical miles, there is a risk of terrain warning, but Xu Qing has already assessed it according to the blind descent map.
According to the blind descent map, two noteworthy obstacles on the five sides are exactly parallel to the FAF, on either side, one about three nautical miles away from the FAF and the other is slightly farther away from the FAF.
These two obstacles are not high, and the aircraft will not have the problem of terrain warnings if they remain 1,000 meters. However, if you turn in advance, in order to intercept the glide path, you must descend in advance, otherwise the height is too high to turn around and it is not easy to intercept the glide. Then, due to the existence of the turning arc, the plane is likely to fly over these two points, and at this time the plane is already below the absolute safety of 1,200 meters, and it is difficult to say whether there will be a terrain warning.
Therefore, some of Xu Qing's decisions seem to be reckless, but they are also the result of careful consideration.
Xu Qing kept it clean all the way, flew to five sides and ten nautical miles, and then directly turned right and flew to 050!
At the beginning of the turn, Xu Qing announced that he would release the flaps.
Xu Qing is going to release the flaps in this short turning time!
If you need to slow down so quickly, you need some extra means, such as speed brakes, such as landing gear.
Since it is now in level flight, if you pull the speed brake and lower the landing gear, the deceleration will be very fast, so the time to release the flaps is actually quite fast.
Xu Qing's use of the speed brake is actually quite limiting, and that is because the limit of the speed brake is 3,000 feet.
The altitude of the city is close to 500 feet, and the altitude he maintains is 3,900 feet, so there is only a margin of 400 feet, which is very close, as long as the plane turns around to intercept the glide path and begins to descend, it cannot use a speed brake. However, the time of this turn has been calculated by Xu Qing.
The reason why he has the confidence to delay the flap is that he knows that relying on the time of the turn and the blessing of the speed brake, the flap will definitely be released!
The scheming is like this, and the horror is like this!
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