"Hey, Tingting, you came all the way from Shenyang?" In the canteen of the 611 Institute, just after the meal was ready, he and Qin Feng were sitting at the table in the canteen to eat, and a voice came from their ears.

Hearing the voice, Gu Tingting raised her head and saw a kind old man, and immediately became happy: "Grandpa Song, I haven't seen you for a long time." ”

"Alas, the eighteenth year of the female college has changed, and the ups and downs are becoming more and more watery, I have the impression that you are still five or six years old after you are young, in a blink of an eye, more than ten years, I almost dare not recognize you." Song Lao said to Gu Tingting.

In the early years, Song Lao was also in the 601 Institute, when he was in the pneumatic room, studying the pneumatic layout of the new annihilation, and now, if it weren't for those eyes, the water would be the same as in the past, and I really wouldn't dare to recognize it.

Gu Tingting looked at Song Lao, very polite, when she was a child, she played in the compound of 601, and often met these old-timers, and now, she has met them here again.

"Well, you eat, I'll go first, this time, Lao Gu really lost his wife and lost his soldiers." Song Lao said with a smile, and after speaking, he left with a relaxed laugh, leaving Qin Feng looking at each other.

What is this that Song Lao said? Why did he make a joke?

"Team leader, our project here, everyone is carrying out normally, now, you should take care of the 132 factory first, there have been a lot of things over there recently." Seeing Qin Feng coming over for dinner, Ma Haitao and others, a project team, all surrounded one after another, and Ma Haitao said to Qin Feng.

Referring to the matter of Factory 132, Qin Feng also frowned: "Yes, there have been too many things on our side recently, alas, now I have to feel like I have been beaten by the water dog, well, we are the water dog." ”

Qin Feng said that he was self-deprecating, and now, there are too many troubles in Factory 132.

"Brother Feng, do you need our help? If you have one, just ask, we are idle on weekends anyway, and when it comes to selling clothes, Li Jun can do it alone. Ma Haitao said.

Hearing Ma Haitao's words, Qin Feng nodded: "There is really one thing, if everyone can help, it would be great." ”

Gu Tingting listened quietly on the side, and now, she couldn't help but widen her eyes, she didn't care about what she ate at all, now, Qin Feng said that she needed help? What is there to help? Maybe I can help with it.

Don't look at yourself as a liberal arts to science, but your basic science skills are also quite solid.

"Okay, let's do it together tomorrow, let's talk, Brother Feng, what's the matter?" Zhang Lijun said on the side: "My clothes, don't worry about selling, let's do it together tomorrow." ”

"The trajectory of the survey gun." Qin Feng said.

Domestic fighters, aviation artillery is a major weapon, even in many cases, is also the only weapon, J-7 aircraft is installed with a caliber of 30 mm 30-1 cannon, is Xi'an Kunlun Machinery 847 Factory imitation of the Soviet Union НР-30 tube retreat single-barreled aviation gun, which uses recoil plus gas re-advance, relying on the gunpowder gas pressure generated during shooting to drive the moving parts to automatically complete all the shooting cycle.

This cannon, with a larger caliber than 23 mm, has more firepower, even if it is a target like a bomber, if it hits one shot, it will be wounded, and if it hits three shots, it will explode in the air.

Now, Qin Feng said that he wanted to test the ballistics of the aircraft gun, which made Zhang Lijun and others very strange: "Do you still need to test this ballistic?" ”

What is the purpose of testing ballistics?

If you want to hit the target accurately, you must know the trajectory of the gun, and then adjust the sight.

However, this ballistic trajectory does not need to be tested, this kind of work, Factory 847 has already completed it.

"yes." Qin Feng said: "Our J-7 modification project, a very important improvement is to realize the hotline aiming of the cannon, if you don't know the trajectory of the gun, then it can't be entered into the system, and the hotline aiming will not be accurate." ”

This is for the Marconi project, with the signing of the contract with Jordan, this project will continue, now, Marconi company, need to provide their own cannon ballistic characteristics, without this, then the flat display hotline can not be debugged.

"I mean, let's just ask for it directly from the brother unit, don't we? Isn't this repetitive work? Zhang Lijun said.

Hearing Zhang Lijun's words, Qin Feng's face showed anger: "Yes, this ballistic characteristic, I would have gone to the brother unit to ask for it, but now, the brother unit won't give it!" ”

This incident is quite infuriating to say.

Originally, the projects of various factories working together have now been withdrawn, and only the three machine departments are left, supporting the 132 factory to continue to improve, and at the same time, all the projects have become the 132 factory itself.

Among them, to achieve cannon hotline aiming, the ballistic characteristics of the cannon are required, which was originally available to brother units, but now, not only brother units do not participate in research and development, but even this ballistic characteristic is not given!

Now, mentioning this matter makes Qin Feng feel like he hates iron but not steel, is this thing worth keeping secret? Why don't you give this too?

There is no way, since the brother unit does not give it, then as long as you test it yourself and do it yourself! In short, no matter how many difficulties you encounter and how many problems you encounter, you must go on bravely!

"Okay, tomorrow, let's go together and use scientific measurements to draw a more standard ballistic characteristic curve." Ma Haitao said.

Although they are from the 611 Institute, they are all Qin Feng's good assistants, and now, Factory 132 has a lot of problems, and they are willing to help Qin Feng.

"I'll go too." Gu Tingting said.

"Nope." Hearing that Gu Tingting was going, Qin Feng immediately interrupted her thoughts, the 30mm cannon was quite terrifying to shoot, the gunpowder smoke could permeate the entire test site, and the movement was even more terrifying.

In particular, there may be accidents, stuck, crazy, Gu Tingting is going, that's not good, it's too dangerous, it's better to buy her a ticket as soon as possible and send her back to Shenyang.

"You let me go, and I'll tell you something." Gu Tingting bargained with Qin Feng confidently.

"What's the matter?"

"Why did the other brother units quit, and moreover, they were so uncooperative." Gu Tingting said.

There is a reason for this, of course. Brother units, no one is willing to cooperate, and they don't even provide ballistic characteristics, why?

At the beginning of 1983, the Ministry of Aviation held a meeting of leading cadres of enterprises, at which important leaders made speeches, criticizing the introduction of the Ministry of Aviation on the three major events of the three Yanmars, the first is the introduction of Spey, the second is the introduction of Marconi's avionics, and the third is the Dolphin helicopter, asking for lessons to be learned.

At that time, Tu Lao suddenly realized, no wonder all the brother factories kept their distance from them and were afraid.