Su Li can think of the battering ram, to a large extent, it also takes into account the level of the Huangfu family, you know, the other party is a casting family, no matter how bad it is, it is good to add a layer of iron to this battering ram and strengthen it, this is the shortest time and the best way to achieve results.

Compared with Qianzhou, the height of the city wall in Jizhou is twice as high, and if you use the method of dealing with Qianzhou to deal with Jizhou at this time, it will definitely be a loss. So this time, Su Li planned to start an article on the battering ram.

The so-called traditional battering ram is easy to imagine consisting of many people on either side, lifting wooden beams parallel to the ground on their shoulders. You can run a distance to increase kinetic energy, and then hit the head of a wooden beam against a gate or wall.

"It is naturally necessary to wrap the mallet head with an iron sheet to enhance the destructive power of the puncture." Su Li pondered for a while, lowered his head and looked down and said.

Liu Qianqian sneered in shame: "What kind of new gameplay are you thinking, don't mess around too much......"

Su Li laughed, got up and wrote down his inspiration on paper.

"In order to enhance the destructive power of the puncture, in addition to strengthening the head, it is also necessary to strengthen the strength, and since manpower is limited, it should be with the help of tools...... But what kind of tools should be used......" Su Li lowered his head and began to enter a state of contemplation.

"Xianggong, don't you have to play that ...... "swing" today? Liu Qianqian still thought that Su Li was tired of playing, and sighed with a little regret.

"Yes, swing, how did I forget this! You can use the principle of the pendulum to enhance the destructive power of the engineering hammer! Su Li clapped his hands and shouted.

Su Li was trying to devise a complete set of devices that could be deployed when approaching enemy walls or gates. Then let the huge mallet swing back and forth against the city wall, so that the force it emits is so great that no wall can withstand its long hammer blow.

As for the process of delivering the battering ram to the city gate, Su Li had also thought about it, and he could use the technology of the small cart to achieve this goal.

The only thing that needs to be carefully considered is how to design the defensive frame on the device, so that the operator can calmly face the stones thrown from the wall or the feathered arrows fired.

"Hahaha...... You don't need to make any gunpowder hot weapons, a little modification of the battering ram can still change the situation of the battle......" Su Li smiled proudly, stopped his pen, fell into the bed again, and hugged Liu Qianqian.

Liu Qianqian had already figured out what Su Li was thinking about at this time, and said coquettishly: "Xianggong, when you were with Qianqian to Yunyu, you were still thinking about work, isn't Qianqian and I have no temptation at all?" Or are you tired of my body? ”

Su Li smiled and said, "Qianqian, you think too much, how can you get tired of it?" Besides, you are a well-known ever-changing magic, and if you are in a good mood and change your face another day, I will naturally have endless fun! ”

"Sure enough, I'm tired of the way I am." Liu Qianqian was so surrounded by him, and occasionally pinched it, only to feel that her whole body was sore and weak, but her mouth was unforgiving: "Then I will definitely become an old woman, and let you have endless fun" for a ......"

Su Li pinched Liu Qianqian's nose and said with a faint smile: "Qianqian, you are serious." This time, after the siege of Jizhou City, I said that I would marry you and give you a name, how about it? ”

Liu Qianqian was happy in her heart, and said: "Who agrees, you want to be your wife so soon......" The body was snuggled in Su Li's arms, looking extremely happy.

……

This night, Su Li did not rest, wrote the package plan into paper things, and drew a schematic diagram of the battering ram. Then the next day, he directly found Huangfu Hanyue and told her all his ideas.

In fact, the current Su Li no longer expects the Huangfu family to send many vital forces to the battlefield with him, but more as a logistics support office, and the other party is more willing to help him.

"Oh my God, General, why do you have so many wild ideas, you should have been born into our foundry family, you are simply ...... It's a genius in design. Huangfu Hanyue sighed.

Su Li smiled: "How about that, can it be realized?" ”

Since Huangfu Hanyue is a person who casts a family, he naturally has an innate sense of novelty for some epoch-making creations.

She pondered for a while, then pondered, "If you want us to strengthen the mallet, this is no problem." However, if we were to build that kind of siege vehicle in a short period of time, and also have a frame on the vehicle to resist the attack of feathered arrows and stones, then the completion of this thing is a bit of a problem in terms of time. ”

"A siege vehicle will do...... Isn't it okay to have one? Su Li said with a frown.

"One? Don't even have a spare? Huangfu Hanyue said in surprise, the siege vehicle is easy to be destroyed by the rolling stones and the like smashed from the city, so if there is no spare siege vehicle, this has great requirements for the destructive power of the battering ram, and if it drags on for a long time, it will definitely be smashed to pieces by the defenders, so sometimes, it even needs a certain amount of luck.

"It's just one...... Stepping up a little bit should be fine. Huangfu Hanyue paused for a moment and said, if there are so many people in the Huangfu army, if they can't even make one, it is too much to say.

"Okay, then wait for the good news, Cold Moon."

Huangfu Hanyue frowned when she heard this: "What did you just say?" General. "This is the first time that the did not add any name, but called Huangfu Hanyue by his name.

Su Li hurriedly came back to his senses and said with a smile: "I mean, since this is the case, then you have worked hard." ”

Huangfu Hanyue looked at Su Li with some suspicion, and replied hesitantly.

……

"Now everything is ready, only the east wind is owed." Su Li sighed slightly and walked on the road to the heavenly prison.

"It's been so long, and you finally thought of seeing me?" Qin Cixuan's face was calm, and he glanced at Su Li lightly and said.

Su Li laughed: "Where is it to come to see you, I want to see Lan Ya, by the way, I just came to see you, seeing that you are doing well, then I will leave first." ”

Qin Cixuan's expression was unmoved, and he continued to close his eyes and recuperate, not knowing what he was thinking.

Su Li was slightly surprised in his heart, if he was claustrophobic in a small space like him, he might go crazy in a few days, but Qin Cixuan seemed to be very accustomed to this atmosphere, no wonder he could be the guard of the underground cell of Gu Yilou, this kind of lonely and boring work, only he could do.

"Hey, I'm really leaving. I said, "Don't you really want to keep me?" Su Li shook his head and sighed.