Duan Mingyu couldn't help but be happy when he felt the crisis of the crossbow chariot. When he looked at the crossbow chariot, he seemed to see his own son: "Master Fan, try to shoot my son... um... the crossbow chariot, let me see how powerful it is!"

"Okay, young master, you'll take a look at you!" Fan Fu waved his hand confidently, and immediately several people carried two giant trees and walked towards the distance.

After walking about three hundred steps, several people stood the giant tree on the ground and ran back happily.

Fan Fu took out a long arrow that was about 1.5 meters long. Duan Mingyu looked at the arrow in surprise. The general arrow consists of three parts: arrow, arrow shaft and arrow feather. The arrow, also known as arrowhead, is mostly made of iron, with a sharp head and a plump bottom, and is in a shape of mitsubishi, triangle, conical, etc. The blade is thin and sharp, with grooves next to it. The arrow shaft is made of wood or under the arrow. The arrow shaft is cylindrical and is made of arrow ends. The arrow feather is often made of giant bird wings such as Peng Falcon, and is sandwiched at the tail end of the arrow shaft, so that the arrow hits the target smoothly during flight.

The arrow in Fan Fu's hand was a bit special. It was made of iron and there were no arrow feathers. It was said that it was an arrow, which was to lift him up. Except for the arrow, there was nothing like an arrow. It was just a gun. What surprised Duan Mingyu the most was that there seemed to be a lead at the end of the arrow shaft.

Duan Mingyu asked, "Master Fan, your arrow seems to be a bit different."

"Young Master really has great eyesight. My arrow is very good. This arrow is made of iron wrapping, and the shaft is hollow. According to the explosive formula given to me a few days ago, the young man specially installed explosives in the arrow shaft. Please look at this lead wire. Just ignite it before launch. Hehe, after the arrow is shot, it can not only shoot the enemy, but also rush into the military formation with explosives. Tsk tsk, the explosives plus iron sheets, the lethality can be said to be double overlapping! Hahaha." Fan Fu stroked his beard with satisfaction and talked with pride.

Luo Hou said: "Master Fan, Luo has been a soldier for several years. Although he has not studied this combat machine, he also knows that the heavier the mass of the arrow, the greater the firing force required. Can your crossbow provide such a great force?"

Xu Zuye also echoed: "Yes, let alone this arrow crossbow chariot is bulky and difficult to adjust its direction. The battlefield situation is ever-changing. How can I have time to move such a major crossbow chariot?"

"Haha, Teacher Luo, Brother Xu, don't worry too much. As a craftsman, we must handle these situations carefully. Otherwise, wouldn't it harm your brother's lives? Please see, my crossbow cart is quite different from other crossbow carts. My crossbow cart uses three powerful iron springs for power supply. In addition, I also added eight beef tendons. The tension and torque of the spring are enough to ensure the firing force. In addition, in this direction, although Fan cannot move the crossbow cart, he hung eighteen iron hooks before the crossbow cart to position and adjust the arrow branches. Haha, what else do you have to say?" Fan Fu boasted again arrogantly, which was very happy.

Luo Hou and Xu Zuye bowed together: "We are convinced!"

Duan Mingyu blew up: "As the saying goes, there are orders of hearing and profession, and you have specialized in your skills. You don't have to be inferior about this. Come on, Master Fan will try it out for us first!"

After Duan Mingyu said that, he pulled Wan Yanyan and ran away, and immediately blocked his ears.

"Wait for me!" Yang Zhaoniang hurriedly followed the two of them and hid aside.

Luo Hou, Wang Aiqing, Xu Zuye, and Xie Xiande, who had just arrived, also ran far away.

Fan Fu signaled that the crossbowman waiting on the side could start, and he ran away with no responsibilities.

The two crossbowmen skillfully filled the long arrows, estimated the position, hung the arrow branches on an iron hook slightly to the left in front, took out a box of newly invented matches, lit the leads, and then pulled the launcher.

Everyone saw a long arrow dragging a swagger of black smoke and shooting out directly with lightning speed.

With a "swish", the long arrow penetrated into two giant trees. Everyone could see the exposed tail of the arrow, and the arrow just poked out from the other side. Then there was a loud "boom" and the giant tree was blown away and the debris flew all over the sky.

"Hiss" everyone took a breath of cold air.

Looking at the location of the giant tree, a large pit with a diameter of four meters has been formed.

Duan Mingyu said in surprise: "This is too NB!"

Fan Fu walked forward and said, "Young Master, are you satisfied with this power?"

Duan Mingyu's head was stewed with mushrooms with chickens... um... the chicken pecked at rice: "Satisfied, quite satisfied!"

"But Master Fan, how many pieces can you send in this crossbow at once?"

"Eleven branches, what's wrong?"

Duan Mingyu coughed and said, "I thought the crossbow you mentioned was a small crossbow used by individual soldiers when fighting, but I didn't expect that Master Fan gave me such a big guy."

"Oh, the young master is talking about this problem. The small crossbow has been made long ago. You see, "Young Master." Fan Fu took out a crossbow like a magic trick.

Fan Fu said: "The crossbow has the length of arms, which is very suitable for individual combat. It can be fired fifteen consecutively. According to what the young master said, each consecutive crossbow is made according to the template. Every time the parts are broken, it can be replaced at any time." After Fan Fu said that, his fingers kept pulling the trigger, and the fifteen arrows shot neatly on the ground. The small arrows entered the ground halfway, and the force was strong!

Duan Mingyu was happy and said, haha, I have all the pistols and cannons!

Fan Fu said at this festive time: "Young Master, this crossbow is easy to build, but this crossbow is not easy to build. Because the crossbow is too strong, nothing can connect its parts intact, so it must be completely manufactured. If one of the wrong parts has to be repeated, and the crossbow is bulky and cannot be used for long-distance raids. This is a difficult problem!"

Duan Mingyu laughed and patted Fan Fu on the shoulder: "Master Fan, if this matter is nothing big, you can use screws and nuts to connect the various parts of the crossbow truck together, so that the flowing operation can be used to produce various parts, and then fixed them with screws and nuts. Hehe, this way, the crossbow truck can be disassembled and assembled at any time. The soldiers carry some parts on their own, so long-distance raids will not be a problem."

"Young Master, I don't know what this screw and nut is, why did Fan never hear it!" The skilled craftsman who was dedicated to scientific research asked Duan Mingyu modestly.

"Well, these two gadgets are made when I have nothing to do in daily life. The screws are like men's things, and the nuts are like women's things. As long as you carve spiral patterns between the two, you can combine them seamlessly. No matter how much you work, you can't separate them." Duan Mingyu wiped the spit on his mouth, "Do you understand?"

"I understand, but I don't know what the young master means..."

...
Chapter completed!