It is also beneficial for the two to study at the same time and learn from each other, and Yang Wei's understanding of the telex system has improved a lot.

For the Tomcat fighter, the most difficult thing is the control of the variable sweep wing, the way the Soviets solved it was to manually adjust it, but the United States was already computer-controlled, so what Yang Wei needed to do was to add this control to the telex developed by himself.

Of course, in the research and development, there are also Pakistani technicians to work together, on the scene, there are Pakistani technicians, over the past two years, the two sides have become good friends.

Install a test flight! Since the Tomcat fighter is already a mature fighter, the modification of the digital fly-by-wire is improved by analogy with the previous hydraulic operation, and the difficulty encountered is smaller.

However, looking at the Tomcat fighter on the Iron Bird Platform, Song Wencong also knew that it was very difficult.

After all, this Tomcat fighter was provided by Pakistan to the Chinese side for reverse mapping, and after each component was surveyed and mapped, tests such as static pressure were also carried out to determine the strength of each position, so this skeleton looks strong, but there are already many places where metal fatigue has occurred, which is caused by excessive pressure during the experiment, even if the plane is assembled, I am afraid that it will not be able to fly, and it will be dangerous.

In this way, if you want to modify the telex and install it for test flight, you need to have another one. Another plane with Pakistan? This seems to be a bit excessive, after all, this Tomcat fighter is a front-line fighter of the Pakistan Air Force, and Pakistan is already quite generous when it comes out for research. You can't do a second one, if you fall during the test, how can you be worthy of Pakistan?

"Mr. Song, Mr. Yang, there are people outside the institute who want to see us." At this moment, an officer on duty said.

"Who?" Song Wencong asked.

"Pakistani Consul."

"Invite him in." Song Wencong hurriedly said.

Pakistani Consul! Pakistan has a deep friendship with China. At the same time, the diplomatic relations between the two sides are also very close, in addition to the embassy in the capital, Pakistan has also set up consulates general in Shanghai, Guangzhou and Chengdu, each in charge of one side.

The consul general of Pakistan in Chengdu is Kahalid. Due to the military-trade cooperation between the two sides, Kahalid also often comes to Chengfei.

"Mr. Song. Mr. Yang, it's a pleasure to meet you. "Kahalid was tall, with a short beard, and wore a suit, a smart look.

"We're happy too." Song Wencong said: "The consul general is here to Chengfei, what's the matter?" ”

"Our president is very concerned about the reverse mapping of the Tomcat, so let me come over and see how it goes." Kahalid said.

Progress? Before Song Wencong could speak, Yang Wei on the side spoke: "It's going well." In terms of airframe, Xifei has done almost the same. In terms of flight control, we have completed reverse mapping, and now we only need a good Tomcat fighter, modify our fly-by-wire flight controller, and conduct tests to see how it works. ”

Now we are facing this dilemma. Since the consul of the Pakistani side is here, Yang Wei has given birth to a calf, so there is nothing to be embarrassed about.

"You mean that you want us in Pakistan to provide another Tomcat fighter and improve it to digital telex?" Kahalid asked.

"Yes." Yang Wei replied very simply. Without the slightest hesitation.

"Okay, I'll report back to China." Kahalid told Yang Wei: "If we can provide a new fighter, how long will it take for the digital flyx to be tested before it can be put into service?" ”

"We need to go through a rigorous test flight, which will take about a year." Yang Wei said: "Of course, it would be best if there were pilots from your country who are familiar with Tomcat fighters to test flights. ”

The digital flight controller has been developed, and Pakistan needs to provide another aircraft! When the news came back to Pakistan, Mhammad just frowned and said, "In this case, we can provide one, and at the same time, send our best pilots over to test fly this modified flight control plane." ”

Mhammad readily agreed, this is a must, and, if the effect is good, the original aircraft can be improved to digital fly-by-wire, which can make the performance of the fighter more advanced.

Of course, the difficulty of the digital flight control is very great, and it may even be accompanied by a crash in the middle, and Mhammad is mentally prepared.

"Now that the flight controller has entered the test flight stage, I think that our airframe can actually start to be built." Mhammad continued: "In this way, while we build, we wait for the flight control to be perfected, and we can produce small batches ourselves, even if we don't order from the United States." ”

The production of airplanes, that is not the production of cars, the assembly line is enough, the progress of the production of airplanes is very slow.

In later generations, the J-10 is already the most needed fighter in China, with an annual output of only about 20 aircraft. And now, Pakistan's Tomcat fighter, the initial production, plus the run-in of the production line, will definitely be in the single digits, and everything needs to be explored.

"As for the initial production base, let's settle on us." Mhammad thought for a moment and continued. Pakistan needs to develop its own aviation industry, and now, Pakistan also has the strength to build a new aircraft production line, and the production of complete aircraft is the first time in Pakistan, but it will gradually increase in the future, Mhammad is convinced of this.

Anyway, now it is also groping, inviting some technicians from Huaxia to come over, teaching by word and deed, you can bring out a large number of qualified technicians, you know, to make aircraft, what is needed is a large number of senior technicians, and now, Pakistan's technical schools are also constantly cultivating blue-collar class.

This is not a great leap forward, it is a necessary process!

Hearing Mhammad's ambition, Musha'af on the side said: "Mr. President, there is news from the West Flying side that although they have mastered all the structures, they are still powerless about some of the components. ”

Some of the components? Mhammad asked, "What component?" ”

"Titanium alloy girders and large frames of the fuselage." Musha'af said.

In order to make the aircraft both light and strong, the fuselage must use titanium alloy components, which run through the entire length of the girder and the crossed large frame to form the skeleton of the fuselage.

The world's most advanced aircraft, including the Su-27, are built with a titanium skeleton.

However, the prior technology, to manufacture the skeleton of titanium alloy, is difficult, even if it is Su-27, due to the lack of advanced titanium alloy processing capabilities in the Soviet Union, the titanium alloy frame of the fuselage is manufactured in sections, and then assembled by electron beam welding, the weld strength is much lower than the overall forging, so it seriously affects the structural strength and fatigue life. In Huaxia, the J-7 and J-6, which are manufactured in large quantities in China, almost do not use much titanium alloy, and are mainly used in engines, so the processing capacity of titanium alloys is also very lacking.

And the Tomcat fighter, not only the fuselage frame, as the main component of the variable sweep wing, the wing box of the wing, is also made of titanium alloy components.

"We can import technology from the West." Mhammad said: "Aren't the British short of money now? We can introduce large-scale machine tools from the United Kingdom, and the island country can also do it, the machinery and equipment of the island people are also quite advanced, and we also need to introduce large-scale forging presses to completely solve the problem of these components. ”

The advantage of Pakistan is that it has channels of communication with the West, and now, there is enough money, so Mhammad immediately decided to import technology from the West and improve the equipment at home, so that he can directly have the processing capacity of these large components.

"It seems that we will invest a lot." Musha'af said.

I'm afraid I'll have to throw hundreds of millions of dollars into it.

"In the short term, it may be more cost-effective for us to import fighter jets directly, but if we want to cultivate our own aviation industry, we need to make a lot of initial investment." "In the future, we will gradually recoup our profits, for example, we can sell our fighter planes to Saudi Arabia and other countries in the future, and I think Saudi Arabia is more willing to use our fighters," Mhammad said. Gradually, we will enter a virtuous circle. Of course, this is our most difficult time, and at the same time, we have to guard against the Americans. ”

The Americans will not look at the emergence of an industrial power in South Asia, especially the country that has also copied their Tomcat fighters, in order to introduce the F100 production line, Mhammad moved a lot of thought, and even used the concept of stealth in later generations to fool the Americans, and finally was able to produce this engine in Pakistan.

Therefore, the United States is even more wary of Pakistan and will not allow Pakistan to have the ability to manufacture a complete machine, although it will certainly not be able to hide it from the Americans in the future, but now it can at least hide it for one more day.

"The new factory should be located at another site, not on the original overhaul plant." Mhammad continued: "It is possible to consider the establishment of a branch plant in the southern coastal area. ”

The original Jianliu repair plant was transformed into a factory for overhauling Tomcat fighters, and it seems more suitable to improve there and become a factory for the production of Tomcat fighters, but it is definitely a more suitable choice for Mhammad to consider more and open up another factory in the south.

Of course, in this way, I am afraid that the time will be dragged back even more, and it is more appropriate to wait until the test flight of the fly-by-wire Tomcat over there is completed, and the production just starts here.

"Okay." "This matter is related to the development of our armed forces in Pakistan, and we will definitely resolve it properly," Musha'af said. ”

"Report." At this moment, an adjutant walked in and said to Mhammad: "The Huaxia side has invited our naval formation to Huaxia for a friendly visit. (To be continued......)