When all the irrelevant personnel are sent away, they will not be able to enter the next step of detailed consultation until the next day, and at this time, AVIC Southwest and Embraer need to participate in it, after all, many projects in the middle also need to have the white gloves of Embraer to operate, especially with the Northrop company behind Embraer, all aspects of coordination are more simple.

In particular, Egypt proposed to be involved in the carrier-based aircraft project at this time, and put forward new requirements for the shortcomings of the current side plate JF-17 part of the capabilities: "You must also know why Egypt chose the JF-17 this time, which is largely due to the fact that when the JF-17 is used as a carrier-based aircraft, it has a powerful multi-purpose combat capability, making it all-round in the air, on the ground, and at sea." The only thing we are not satisfied with now is that this aircraft does not use a three-axis fly-by-wire flight control design, which is a big shortcoming. ”

Although there is not much news about the aircraft carrier discussed between Egypt and Saudi Arabia, whether it is Egypt or Saudi Arabia, these two guys must have high requirements on the aircraft carrier project, and the low-cost side plate scheme of the JF-17 obviously cannot meet their requirements, so they bluntly put forward their opinions at this time.

In the face of the three-axis fly-by-wire flight control required by Egypt, this is much simpler, and there is no need to think about anything at all, and there is directly ready-made technology available, which also makes Northrop excited.

"This is too simple, perhaps everyone has been wondering why the JF-17 can be developed so quickly, it took less than 4 years to be delivered and formed combat effectiveness, and now that Egypt has chosen the JF-17 aircraft, then we will announce a piece of news. Thanks, what do you think? ”

At this time, the person in charge of Northrop sent to participate in Egypt is not a stranger, as early as 85 years, he was stationed in Southwest Science and Industry, and the vice president of Northrop, who worked for a total of four years, was the one who spoke at this time, and now he is even more blunt to ask Xie Lianfa if he can announce some news.

Of course, he understood what news was going to be announced at this time, and nodded without any hesitation: "It's total, at least wasn't Northrop involved at that time?" I believe that the YZ-1 technical demonstrator is fully capable of meeting the requirements of Egypt. ”

After getting affirmation, then everything is easy to do: "About the three-axis fly-by-wire flight control system, this is very simple, long before the lightning fighter has had a technical verification machine numbered YZ-1, this aircraft is used to test the large side strip wing technology of the aircraft, in order to be able to meet the special requirements of the large side strip wing, in the absence of side plate technology at that time, Northrop provided a three-axis four-redundant digital fly-by-wire flight control system, so the early YZ-1 is not only a verification of the large side strip wing technology, The supporting fly-by-wire flight control system has also been verified. ”

felt that these words had been expressed very clearly, and then Xie Lianfa also gave an affirmative answer to the Egyptian inquiry over there.

"That's true, even in the development stage of our lightning fighter, the first prototype is not a new manufacture, but on the basis of the original YZ-1 technical verification aircraft, if you are willing to go and see it now, on the left side of the entrance to the Aviation History Museum in the southwest of AVIC, there is a No. 17000 engineering aircraft that is not only equipped with a three-axis four-redundancy digital fly-by-wire flight control but also equipped with side panels."

Stunned, absolutely stunned, this news is not to mention Egypt, even Embraer is the first time to hear about it. Only then did they find that when the 17001 they saw made its first flight, the engineering demonstrator did not know how many tests it had flown in, and it is no wonder that the JF-17 was able to ensure such an efficient research and development schedule while using the new technology of side plates.

How many people know about the technical accumulation and the efforts behind the success of an aircraft, if there is no Egypt asking for fly-by-wire flight control this time, the legendary story about the mysterious 17000 engineering aircraft is probably only seen by people who have been to the AVIC Southwest Aviation Museum!

"I see, I see! If we hadn't said it this time, maybe we would never have known about it. And now, that means that the JF-17 uses the side plate on the flight controller to replace the high cost of the YZ-1 fly-by-wire flight controller, if you don't need to care about the unit manufacturing cost of the aircraft, you can directly replace the side plate with the three-axis four-redundancy digital fly-by-wire flight controller that has been verified and used on the YZ-1, I'm right? ”

There was no need for Egypt to say anything more, and Embraer took the lead in asking the most critical news this time, which also caused everyone in the closed-door meeting to be amazed.

"Is that really the case? JF-17 originally has a mature three-axis four-redundancy digital fly-by-wire flight control technology, as long as we are willing to spend more money, we can purchase the fly-by-wire flight control version of the JF-17 fighter? ”

At this time, the Egyptian side was simply happy to die, and was worried about the shortcomings of the JF-17 in the flight control before, and it was easily solved at this time, whether it was a high-end luxury version or an entry-level beggar version, but it just depends on how much money is willing to spend, such a design is simply too thoughtful.

Before he came, Xie Lianfa actually didn't think that it would be like this in the end, this project was taken down, but Egypt's requirements are a little different, but it doesn't hurt to think about it, the big deal is to install a digital fly-by-wire flight controller, and there is no problem at all.

"Of course, as long as Egypt is willing to spend more money, lightning can be more excellent, using three-axis four-redundant digital flight control design, we expect that the weight of the aircraft can be reduced from the original 6.5 tons to 6 tons, and the range can also be increased, and the maneuverability of the aircraft because of the weight reduction and the use of three-axis fly-by-wire flight control, even if you want to challenge your country's current F-16 fighter will not be a problem."

Although the JF-17 lightning of this plane looks similar to the Thunder Dragon Zhang in appearance, in order to control the cost, a pure mechanical flight control design is adopted, coupled with the additional dead weight brought by the side plate technology, and because the turbofan 10A is smaller than the RD-93 used by the Thunder in terms of thrust, so when the Thunder of this plane was designed, it was deliberately emphasized that the weight of the lightning could not exceed 6.5 tons, that is, the empty weight of the previous Thunder Dragon.

Therefore, in order to make up for the additional weight brought by the side plate technology and the pure mechanical flight control, the lightning still ruthlessly used the second-generation aluminum-lithium alloy, and only in this way did the weight control to the same level as the previous face Thunder Dragon, and now Egypt wants to use a three-axis four-redundant digital fly-by-wire flight controller, which has a weight reduction effect.

The lightning was originally 6.5 tons of empty weight, but this time it was directly reduced to 6 tons, which is much lighter than the 6.4 tons of empty weight of the previous face Thunder Dragon fighter.

And in this way, even if the turbofan 10B used by the lightning is somewhat inferior to the RD-33 in terms of thrust, but with the use of digital fly-by-wire flight control, the lightning is even better than the Thunder in terms of maneuverability, and the previous Thunder can compete with the F-16A, so there is no reason why the fly-by-wire lightning on this plane cannot fight with the Egyptian F-16. (To be continued.) )