"The harvest of these days is really great, not to mention finite element analysis, that is a set of applied mathematical algorithms comparable to the world, I didn't expect to learn the manufacturing method of epoxy resin and FRP, which is a lightweight material that any military technician dreams of!"

Zhang Yi sat at the desk in the dormitory, holding the notebook he carried with him, while looking at the densely recorded words and symbols on it, he couldn't help expressing his emotion, and the unfinished look in his eyes, as if he was still at the development site at this time, listening to Bai Yi's profound but humorous explanation. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

So that he was still fascinated until this moment, only to feel that this midnight was extremely wonderful, and the nerves in his brain were beyond the shackles of the biological clock, constantly running, so he put down the notebook in his hand, walked around the room twice excitedly, and kept muttering as he walked: "I'll just say, Team Leader Bai set the full combat weight of the No. 1 recoilless gun to 18 kilograms, and the combat weight of the No. 2 recoilless artillery to about 7 kilograms."

Now it seems that he has already calculated, no, as soon as the FRP comes out, some of the original steel parts can be replaced, you must know that FRP is a durable material that is lighter than aluminum alloy, once applied to our recoilless artillery, the full weight of the battle will inevitably plummet......"

Speaking, Zhang Yi's eyes were a little confused, but more reverence, staring at the curtain-like dark night outside the window, as if seeing the scenes of Bai Yi's leadership in the development of recoilless artillery during this period, that is, after solving the production and processing of epoxy resin FRP, Bai Yi finally proposed two recoilless artillery schemes with different shapes.

In Bai Yi's words, with a recoilless artillery principle, two kinds of infantry support equipment at the battalion company level and squad and platoon level can be completely developed, that is, the so-called No. 1 recoilless artillery and No. 2 recoilless artillery, which are similar in structure, but there are differences in caliber.

In order to make the shells fly more smoothly and have a longer range, the No. 1 recoilless gun has changed the smoothbore structure of the American-made M18 57mm recoilless gun and adopts the rifled structure of the barrel prefabricated rifling.

Of course, because of this, the chamber of the No. 1 recoilless gun is made of high-strength steel, if there is no FRP, this kind of large-caliber recoilless artillery, no matter how to control the weight, because of the rifling and its own structural problems, the barrel will be quite thick.

However, now with FRP, the built-in steel bore can be made as thin as possible, and the outer layer can be wound with FRP, which can greatly reduce the weight of the main door gun while achieving a stable structure, so as to achieve the purpose of easy operation with only one or two soldiers.

As for the No. 2 recoilless gun, the difference is that the caliber has been reduced, set at 40mm, and the ammunition is a rocket fuel booster structure, so that you can use a larger caliber of super-caliber ammunition than the original caliber, as for the structure is also simpler, a seamless steel tube, and the tail is supported by reinforced glass fiber reinforced like the No. 1 gun, so it becomes a high-power direct fire weapon that can be used by individual soldiers.

To be honest, if Zhang Yi had listened to these words before, although he would not have scoffed at them, he would have felt that all this was a fantasy, but when he saw finite element analysis and epoxy resin FRP, he no longer felt that those unattainable indicators were so unattainable.

The built-in steel barrel of the No. 1 recoilless gun should be made as thin as possible and the rifling must be machined at the same time, which may have been very difficult before today, because it involves a lot of experiments, calculations, and repeated research and verification, after all, it is necessary to find out the maximum material bearing force of the built-in steel barrel as much as possible, and then use this bearing force to find the best thickness balance point.

But now with finite element analysis, only a few basic data can be tested, and the potential boundaries of many materials, including the maximum bearing capacity of the steel barrel, can be easily calculated, so that the thickness of the built-in barrel can be quickly determined, and the same is true for the externally wound FRP, so that the research and development time of the two equipment can be greatly shortened, not to mention, the related costs will be greatly reduced.

If we count the new technologies and materials produced by the development of these two new recoilless guns, they will have an extremely far-reaching impact on the entire country, because this has gone beyond the scope of one or several weapons, but has become a favorable opportunity to promote the progress of the country's overall industry, and even directly overtake in corners.

And this is the ultimate ambition of Zhang Yi, who has grown step by step from an apprentice to a technical backbone, and because of this, he is hungry to learn all kinds of technical knowledge told by Bai Yi, so that he is fascinated; Because of this, he admired Bai Yi for promoting the application of new technologies, and only felt that he was a great luck and a great happiness to be able to join this research and development team.

However, just when Zhang Yi withdrew his gaze from the night outside the window with a happy smile and turned to the desk again, Feng Chong's somewhat neat and dazed face made Zhang Yi's happy look a little stronger, and he immediately walked over quickly and patted this good friend on the shoulder: "What's wrong with you these days?" It always seems that you can't give up? Wouldn't you still be worried about exposing the matter of writing a whistleblower letter? But I think that since you have gone to chase back the letter, even if Team Leader Bai knows about it, it will be nothing, after all, Team Leader Bai is still very broad-minded, so he won't be embarrassed for you because of this. ”

"I ......"

Feng Chong listened to Zhang Yi's advice, and wanted to explain something, but before the words reached his mouth, he let him swallow it back again, what could he say? Just half a month ago, Bai Yi proved with real technology that he was a well-deserved authority in this group, not to mention leading them as backbones, even if he became their mentor, it was more than enough, in the face of such a fact, Feng Chong only felt that it was even hotter than a hundred slaps in the face.

He regretted a little, regretted that he shouldn't have disagreed with Bai Yi, and he shouldn't have written the report letter under impulse, so under Zhang Yi's persuasion, the next day he ran to the Northeast Bureau to try to recover the previous letter, but contrary to his wishes, the report letter has been picked up by the relevant departments, and it is impossible to recover it, so Feng Chong is very frightened.

Even for a period of time, he was a little suspicious, for fear that the matter would be exposed, with Bai Yi's prestige, he Feng Chong would instantly become the public enemy of the entire research and development team, whenever he thought of this, Feng Chong would be uneasy, so that the whole person lost weight several times, but as time went by, Bai Yi did not receive questions from his superiors, and Feng Chong did not receive pressure from Bai Yi, so Feng Chong breathed a sigh of relief, and only felt that this matter was in the past.

So he kept it in his heart at this time, hoping to completely rot away, but he didn't expect that today, for some reason, this very disgraceful secret in his heart suddenly grew fiercely, so that Feng Chong couldn't control it anyway, so that his face was very ugly at the moment, but fortunately, the lights in the room were dim, so that people couldn't see it too lightly, otherwise Zhang Yi might have seen the clues.

However, no matter whether Zhang Yi can see it or not, at this moment, Feng Chong made up his mind to tell this secret to the good brother in front of him, because he couldn't resist anymore, so he raised his eyes and just wanted to speak, but he heard a girl's angry scream outside the dormitory door: ", whose report letter is it, now it's okay, Team Leader Bai will be transferred out of the military industry system tomorrow, are you satisfied...... Woowoo woo ......"

Feng Chong and Zhang Yi heard it clearly, especially Zhang Yi immediately ran out of the dormitory when he heard the words, and Feng Chong's head suddenly flickered, only to feel that the sky suddenly turned in front of him......