Leng Feng had a lot of self-control, so he let go of Liu Shuwen.

Liu Shuwen kissed Leng Feng's face, then climbed out of the bathtub and ran back to the room to change clothes.

Leng Feng took a bath, his body and mind were transparent, so he simply didn't eat dinner, went back to his room early to sleep, and got up early tomorrow to experiment with Zhang Zhongqing's group of crazy people.

The thunderbolt is three feet long, the tip of the shaft is small and semi-hollow, containing gunpowder, and the fuse is hidden in the arrow, only the end of the shaft is slightly exposed.

Zhang Zhongqing proudly looked at the thunder arrow he had carefully made, and the eyes exposed in the hollow of the mask almost narrowed into a slit.

"......Forehead" Leng Feng swept the thunder arrow and said to Zhang Zhongqing: "It's not me who hit you, your thunder arrow obviously feels light in front and heavy in the back, and the weight distribution on the left and right is not even, and most of the shots will go arcing." ”

Zhang Zhongqing was puzzled: "How can you still pay attention to archery?" I'm ashamed, I don't know how to shoot arrows. ”

Leng Feng twisted the fuse of the thunder arrow and asked, "How much time does it take for this fuse to be ignited to detonated?" ”

"Between three and five breaths!"

Regarding the calculation of the fuse burning time, Zhang Zhongqing and the others have worked hard, and now they have perfectly mastered the speed of the fuse combustion caused by different proportions of the formula.

Three to five breaths is enough to make the arrow from the bow a hundred meters away, Leng Feng pulled the bow and led the arrow, and after pulling it halfway, he signaled Zhang Zhongqing to light the fire.

Zhang Zhongqing blew the fire fold and carefully lit the fuse with a lunge.

Sou!

As soon as the arrow left the bowstring, Leng Feng even threw away the bow, and without even looking if the arrow hit the target, he quickly drilled back to the protected cabin with Zhang Zhongqing.

How do you describe that sound? Maybe Bang!

After hearing the noise, the two of them came out of the wooden house in a gloomy manner. There is no way, gunpowder gives the impression that it is extremely dangerous, and "be careful" is one of the creeds of the Thunderbolt Division.

There were no arrows on the target, but the grass next to the target was unlucky, and a small crater the size of two fists was blown out.

Leng Feng squatted on the edge of the small pit and visually measured the trajectory of the arrow, and then said to Zhang Zhongqing: "No, the target is a hundred steps away, even if I can't shoot the bull's-eye, it won't be too far away, you should know the archery skills taught by Zhang Wen very well." ”

Zhang Zhongqing searched for a long time next to him before he found the arrow and the tail shaft, and muttered: "The weight is unevenly distributed, so the arrow will deviate from the track, but it is difficult for a strong man to fill the arrow with gunpowder and ensure that it is integrated!" ”

Leng Feng also scratched his head, thinking hard about countermeasures.

"At this time, Zhang Wen should be called back!"

Zhang Zhongqing stood up and said angrily: "This damn guy is happy to kill in the army, and he threw all the mess of the Hundred Cavalry Division on me, I am busy studying the thunder arrow all day long, and I have to deal with the affairs of the Hundred Cavalry Division!" ”

Speaking of Zhang Wen, Leng Feng suddenly remembered Zhang Wen's arrow!

Ordinary arrows are all iron heads, wooden poles, and feather feathers, and the next ones don't even have tail feathers. But Zhang Wen's arrows are different, he has three kinds of arrows: ordinary arrows, iron heads, half-iron arrows, iron heads, iron arrows.

According to Zhang Wen, if he shoots at a large army of the enemy, he uses ordinary arrows, and if he shoots through armor, he uses arrows with iron heads and half an iron rod, which are more penetrating and will not deviate too much if they shoot farther.

As for what the arrows of the iron and wood poles are used for, Zhang Wen did not say, from the beginning of the war until Leng Feng left, he had never seen Zhang Wen use that arrow.

Leng Feng pulled Zhang Zhongqing: "Do you remember Zhang Wen's arrow?" ”

Zhang Zhongqing thought for a while: "Remember, he has a half-iron arrow, this kind of arrow is uncontrollable by non-powerful people, and it is far more stable than ordinary arrows, you say this...... Dry...... Miscellaneous...... Yes! ”

Zhang Zhongqing jumped three feet high: "As long as we also make this kind of arrow, don't you just stuff gunpowder into the iron rod!" ”

Leng Feng smiled: "This job has to be done by the master who is the supervisor, we can't get this thing." ”

Zhang Zhongqing stood up, patted the soil on his body and said, "I'm going to find someone in the prison!" Zhang Wen is at the border, and it is best for him to test the effect of the thunder arrows on the spot. ”

……

Tie Sheng is the son of the master who will be the supervisor, and this year the son has just inherited his father's business to succeed the craftsman, and he has learned his father's craft of striking iron, but he is still a newcomer if he has no qualifications as a supervisor.

On this day, he was called over by Yan Lide, the head of the prison.

"The people of the Hundred Horsemen want to see you!"

Just this sentence scared Tie Sheng half to death, what kind of organization is the Hundred Cavalry Division! How could he find him a little blacksmith?

Tie Sheng's legs immediately weakened, and he cried: "Master, I Tie Sheng is a peaceful person, and I haven't broken the law!" ”

Yan Lide looked at Tie Sheng with a smile: "Shut up, you've encountered something good!" Although you are serving as a prisoner, you just have no worries about food and clothing, and it sounds better than the blacksmith in an ordinary blacksmith shop! The Hundred Horsemen are the subordinates of the Son of Heaven, and I called you here this time to transfer you away! ”

"Transfer me to the Hundred Riders?"

Tie Sheng was dumbfounded, he was an iron striker, what could he do when he went to the Hundred Cavalry Division? Striking iron?

Zhang Zhongqing and Tie Sheng sat in a carriage. Tie Sheng looked at the masked gloomy man opposite him as if he saw Hades, and couldn't help but tremble.

Zhang Zhongqing said slowly: "I asked Yan Lide who would be the most skillful in blacksmithing in prison, and Yan Lide recommended you to me. Saying that transferring you to the Hundred Horsemen Division is just a pretense, in fact I will take you to the Thunderbolt Division. ”

"Thunderbolt? My lord, what is this place? ”

Zhang Zhongqing lowered his voice and said, "Don't ask what you shouldn't ask, don't say what you shouldn't say." You just need to remember, when the lightning division is completely completed, you can't come out at will, as long as you do your job well, you can get more than ten wages every month, I am now the leader of the lightning division, if you do a good job, I will also give you processing money! ”

"Ten...... Ten runs? Tie Sheng's ears kept echoing the words "Shiguan".

"Let me ask you, do you make arrowheads?"

Tie Sheng shook his head before shaking himself out of the copper coin and said, "I haven't built it, but as long as the adults show me a sample, or set a standard, I can build it!" ”

"Good!" Zhang Zhongqing took out his hastily drawn drawing from his arms and handed it to Tie Sheng: "See if you can make this!" ”

Tie Sheng took the picture and looked at it carefully, and stretched out his right hand to make a few gestures before saying, "Yes!" But I can't make this thing too fast, and I can make twenty of them in a day! ”

"Twenty?" Zhang Zhongqing touched the mask, the efficiency of twenty a day is already very high, if Tie Sheng can teach a group of apprentices, large-scale manufacturing will not be a problem.

And now the question is...... Can the half-iron thunder arrow solve the problem of unstable trajectory!