The progress of the aviation industry is accumulated little by little, after all, Rome was not built in a day, the domestic production of Western passenger aircraft parts, so that you can get in touch with the advanced standards of the West, and the aviation industry of your own side is also a great progress, Chengdu is like this, Shanghai is also like this, with the materials of Yun Shi to practice rivets, it sounds very heart-wrenching, but it, a small rivet, can also reflect the progress, countersunk rivets look more beautiful than outcrop rivets, for aircraft, the drag will be less.

Now, Tu Lao led a group of people to the back, just behind, Tu Lao pointed to a piece of equipment and said: "This three-axis linkage CNC machine tool is our latest import, its processing accuracy has reached 0.01 mm, and it can be controlled directly through the computer, it is cut, more accurate." ”

Hearing this, Song Lao suddenly felt his heart beating faster, this processing accuracy is exactly what he urgently needs!

"We are now mainly cutting the nose girder of the McDonnell Doesnnell Douglas 80 passenger aircraft, after all, it is a complex component, multiple geometries, the previous production error is very large, now this way, it is very accurate, and when it comes, we plan to use it to produce the leading edge flap of the wing of the J-7."

When developing the new J-7 model, it has been determined to use double delta wings and leading edge mobile flaps, the machining accuracy of this thing is very high, if the machining accuracy is not enough, there may be problems in the air movement, which must be processed by CNC machine tools.

Now, the factory is putting a lot of effort into making improvements, just for future production.

"Lao Tu, this thing, give us production first, we need to process a qualified landing gear, and we are looking for suitable processing equipment across the country, I didn't expect that you have it here!"

In the research and development of J-10, the new project occupies 60 percent of the entire aircraft, and the risk is very great, among them, the small three-point landing gear of the outer figure is also one of them, this kind of landing gear will free up the space under the precious wing, and you can mount more equipment, but this kind of landing gear is oblique, the force is very large, and it is a great test for materials and processing.

They have designed the shape of the landing gear, and also found some spare materials, it is a problem of processing, the accuracy is not enough, and the processing is a waste product, and now, here in Tu Lao, it is easy to find it!

"Of course you can, and we can also follow the rules of Lao Song to give you production first, and then pay us after we are qualified."

This is also a proposal of Song Lao, first research, research out, the finished product is qualified, and then the money will be given, so as to avoid a lot of scientific research departments to take money and not do things, the efficiency is not high, and then ask for money after doing it.

Tu Lao is very generous, the profitability of the current 132 factory is very strong, they will not be entangled in these, if the production of the whole machine, it must be funded, because the production of the whole machine is very expensive, but now, just a landing gear, first to process, no problem.

"Thank you, Lao Tu." Song Lao said sincerely from the bottom of his heart.

As he spoke, he had already walked through the workshop here, and the production of the nose of this passenger plane was just a simple outsourcing project, and the most important thing for Factory 132 was still the production of J-7.

"Jianqi is now our main force." Qin Feng looked at the Jian-7 fighter being assembled in the factory here, and said to Tu Lao, relying on the export of Jian-7, the entire 132 factory is full of vitality, and we directly earn dollars.

"Well, this batch of J-7 is our further modification, and the models we export to the outside world have already started with F, and this batch of aircraft is F-7P." Tu Lao introduced.

In order to facilitate the export to the outside world, the fighter has a new number to the outside world, after all, it is used to being called the J-7 in China, but what about it, when the J-7 is exported, how to write it in the English version?

Therefore, it is logical to change the name, change the name to F, this can be interpreted in many ways, for example, according to the English interpretation, this F is the meaning of combat, the American fighter jets all start with F, if you use your own language, F can mean flying, and most importantly, this name, in fact, Lao Ba first called it, and then the country followed and called it that.

The first J-7M to be exported is called F-7M in Pakistan, and this improved version is called F-7P. The comrades of China Aviation Technology felt that it was good and could be in line with the world, so the planes that were simply exported were changed to this foreign name.

If you look at it from a layman's point of view, you can't see any difference, but an insider can see a lot of the changes at a glance.

The levers have been shortened, mirrors have been added to the cockpit, and ejection seats have been replaced with Martin Baker's MK10 ejection seats, which can be seen.

"Now, this batch of fighters is in production, and at the same time, the improvement of this fighter has also begun." Tu Lao said that the cooperation with Lao Ba has also benefited the 132 factory a lot, and the previous situation that a fighter will be produced for decades will not appear, and every once in a while, there will be an upgrade.

Of course, the main modification is electronic equipment, and it is electronic equipment imported from the West, and even electronic equipment does not have to worry about it, and Lao Ba comes out for an interview, and his own side is mainly responsible for assembly, this time to improve the navigation system, after all, the Jian-7 has only relied on the radio compass to determine the direction in the air, which is already very backward.

Planned additions include Collins AN/ARN-147 VOR/ILS receivers, AN/ARN-149 ADFs, and ProLine II DME-42 digital distance measurement devices. These devices can make the J-7 more convenient and quick positioning when it is on a mission, and after this improvement, the name will also be changed to F-7MP.

"Even the radar in front of the nose, we have a plan to purchase the latest radar to replace it, so that it can be equipped with a real pulse Doppler radar."

In the past, even when negotiating with Marconi Company, it was considered impossible to install pulse-Doppler radar on the J-7's air intake cone, but in recent years, electronic technology has developed rapidly, and it is still possible to install a small flat slot radar antenna inside the air intake cone, and even Israel is ready to develop this radar.