"General, can I ask a question?" Lin Hongfei hesitated, but still asked Wang Xu.

"You say," Wang Xu nodded, "but I don't guarantee that I will answer if I can answer, and ...... if I can't."

"I don't dare to listen to what you say if you can't answer," Lin Hongfei took over, "Our navy, have the corresponding personnel started training?" ”

After taking a deep look at Lin Hongfei, General Wang Xu nodded uncheckable, obviously, Lin Hongfei's question was still a little taboo for Shao, and Wang Xu told Lin Hongfei about this, which was also a risk.

Lin Hongfei also knew this, and said in a faint whisper, "Xie Lu Xie." ”

"Don't be so polite, if it weren't for the fact that you were about to take on an important project, I wouldn't dare to say this to you." Wang Xu's eyes narrowed, and there was even a hint of pride in them, as if he wished Lin Hongfei would ask this question...... That's a huge pit!

"Important project?" Lin Hongfei was stunned for a moment, "What project?" ”

"The Buddha said: Don't say, don't say, wait two days and you will know the Tao." Wang Xu smiled more and more proudly.

However, in Lin Hongfei's view, this pride seems to be more appropriate to describe as "cheap".

————————————————————————

It really didn't take long, but in just a few days, a confidential phone call brought Lin Hongfei to the capital.

Lin Hongfei, who originally thought it was just an ordinary research task, was confiscated from his mobile phone, and after the whole person was checked from the hair to the soles of his shoes, he didn't realize that this time was unusual, it could only be said that Lin Hongfei's IQ was not enough.

But when he was brought into a "dark room", Lin Hongfei found that he still underestimated the degree of confidentiality of what he had to do in Beijing this time. When he saw that he was the second person in the military of the Republic (of course, the number one person was the one sitting in the Dragon Court), Lin Hongfei was not only surprised, but extremely frightened.

"Sit, sit," General Huaqing was very kind, smiled and beckoned Lin Hongfei to sit down, and explained to him, "The matter I want to talk to you about this time is related to national strategic security, so I can only talk about it in this room......" The old man pointed to this room with only one door, a small ventilation hole, and no windows. To Lin Hongfei, he said, "This house is surrounded by lead plates, steel plates and concrete layers, so you don't have to worry about being eavesdropped." ”

Lin Hongfei nodded, he never believed that there were only these passive means in this room, and he didn't know how many other active means there were.

But because of that. Lin Hongfei's heart became more and more nervous: what is the matter, the country is so cautious. Unexpectedly dispatched such a high-level figure to talk to himself?

The old general did not go around the pass. With his qualifications, there was no need to go around in front of Lin Hongfei, so he simply said, "I asked you to come over this time because the country decided to develop our own doomsday plane." ”

"Doomsday plane?" Lin Hongfei was stunned for a moment, "It's like that doomsday plane in the United States?" ”

Many people are aware of the existence of the Air Force One plane, which is only used by the President of the United States. However, they don't know much about the doomsday plane secretly developed by the United States, and many people even think that the "doomsday plane" does not exist at all, and it is a joke made up artificially, but Lin Hongfei knows it. The United States has produced a total of four Doomsday planes, which are modified with Boeing 747 and codenamed E-4B, and their main role is to protect the president, the secretary of defense, the chairman of the Joint Chiefs of Staff, and other military and political heads of state when the United States is facing a devastating disaster, and even temporarily move the functions of the government and military command to the sky.

According to the regulations on the use of Doomsday aircraft, every day and at any time, there must be a Doomsday aircraft on strategic air duty, so that in the event of an emergency, the US dignitaries can be picked up as quickly as possible, and at least three Doomsday planes must be in the best condition at all times...... Sounds like a fantasy? But the Americans seem to have done it, four planes, one on combat readiness duty in the air, one for maintenance, and the other two on standby.

"That's right, it's the Doomsday Plane," the old general nodded, "Boy, you're an expert in aircraft, tell me, how feasible is it to use the North County 200B to modify our own Doomsday Plane?" What's the biggest hurdle, if so? ”

"The big question is, I'm worried that the performance of the North County 200B can meet the requirements of the modified Doomsday aircraft?" Lin Hongfei frowned tightly, he really didn't know anything in his heart, how much did Boss Lin, who knew a little about the end of the world, know very well how powerful the Americans' doomsday plane is, "As far as I know, in order to avoid the impact of nuclear radiation and electromagnetic radiation, the equipment used on the Americans' doomsday plane is still a bulky tube device, and the weight of these devices alone is as high as 75 tons, including the modification of the plane itself and the weight of more than 100 crew members...... The structural strength and volume of the North County 200B can support this kind of modification, but our powertrain cannot. ”

"Isn't it okay to use the Sitai BD1000-B engine?" General Hua Qing asked.

"No," Lin Hongfei shook his head, "The landing weight of the American E-4B is almost 350 tons, and the maximum landing weight seems to be more than 360 tons, even if the 4 is too BD1000-B, the maximum take-off weight of the Beijun 200B is more than 200 tons, which is equivalent to the weight of the E-4B without refueling, and the gap is too big." ”

General Huaqing didn't speak, too, the E-4B was modified with a Boeing 747, the foundation of the Boeing 747 is good, with this kind of aircraft modification, not only has space to install more equipment, but the power of its engine is enough to support such a large aircraft to fly, but Beijun 200B? That's just a Boeing 707 level aircraft, compared with the Boeing 747, it's simply "congenital dysplasia", the foundation is not good, how to change?

"And what about the North County 400 you're testing flying?" After a deep groan, General Huaqing asked again,

"North County 400?!" Lin Hongfei was frightened by General Huaqing's idea, and hurriedly shook his head in a panic, "No, no, the Beijun 400 is flying test, at least it can be considered after this aircraft has been flying for seven or eight years, accumulating a certain amount of data, reliability and safety." ”

The North County 400 is in test flight and is in the airworthiness certification stage, and it is a doomsday aircraft modified with such an aircraft that is in the airworthiness certification stage? God! The first requirement of the doomsday plane is safety, the second requirement is still safety, and the third requirement is still safety!

Safe! Safe! Safe!

Safety is paramount!!

An aircraft that is in the stage of test flight and airworthiness certification is very likely to have many unexpected problems, and it is very likely that this aircraft can be modified with a doomsday aircraft? Are the bosses a little impatient? Even if General Huaqing dared to order the use of Beijun 400 to modify, Lin Hongfei did not dare to obey this order: this is simply joking with the lives of all the super bosses!

"Slippery head! You can't think of these old men? Looking at Lin Hongfei's face, which had already been frightened, the old general couldn't help but smile, "Old man, even if I have lived enough, the others have not lived enough...... Boy, you just give me a letter of approval, can you use this plane to be modified? Is the foundation enough? ”

So that's it! Lin Hongfei breathed a sigh of relief in his heart, and sighed in his heart for a while, then said, "The size of the current Beijun 400 is still a little reluctant, if you want to achieve the level of the American E-4B, the fuselage and wings of the Beijun 400 need to be lengthened, of course, the most important thing is the power system, I calculated it, because this kind of aircraft has relatively high requirements for flexibility, and the maximum take-off weight is about 350 tons. Then the thrust-to-weight ratio of the whole machine must be between 0.27 and 0.29, that is, the total thrust of the engine must be about 100 tons to 110 tons, and almost 6 BD1000-B are needed to meet the power requirements...... Of course, if we have engines with greater thrust, a single engine with a thrust of up to 25 tons, 4 engines will be enough, but now we do not have a turbofan engine with a large bypass ratio of such thrust. ”

Although the thrust of the NK-321 military turbofan engine is sufficient, as a military engine, it is simply not able to strike a balance between fuel consumption and economy...... The oil burned too much.

"So, it's doable, right?" The old general didn't care so much, hearing Lin Hongfei say this, his eyes suddenly lit up!

Lengthened fuselage? Lengthened wings? Do you need to add two more engines to the regular Northshire 400? What is this matter, as long as we can guarantee that we can actually build our own doomsday plane, this is not a problem...... It's great that we have more equipment and less people on one plane, just build a few more, didn't the Americans build 4 planes? Let's get 6 or 8 planes, right?

Fortunately, Lin Hongfei didn't know what the old general Lu Dao thought, otherwise he would have to cry to death: the price of an E-4B modified by the Americans in the 80s was 223 million US dollars, and more than 20 years have passed, even if many things in China are lower than those of the Americans, the cost of refitting one will not be 500 million US dollars...... Uh, half a billion dollars?

I thought that in a few years, we could come up with 4 trillion RMB, or about 586 billion US dollars, to save the market, and even if we modified 8 aircraft, it would only cost 4 billion US dollars...... Well, not much! (To be continued......)