The weapon tycoon who traveled to Daqin

Shangwen returned to his residence and first wrote a memorial. He ordered Meng Tian's men to deliver it to the King of Qin. Shangwen began to study rockets.

Naofumi feels that there are certain difficulties in researching rockets. First of all, the material is more difficult to solve. Although wood has been considered as the preferred material, wood cannot be used for the nozzle and nozzle. When gunpowder is used as propellant, high temperature burning

It is easy to break down the rocket body, causing it to deviate when it finally flies to the target. This is a situation you don't want to see.

It seems that iron must be used. Only the ductility of iron meets the current needs. But the iron must be made light and thin. This is the only requirement.

Thinking of this, Naofumi began to draw the nozzle and nozzle. In order to save the difficulty of processing, Naofumi directly put the two together and planned the size at the same time.

The diameter of the larger rocket is one foot, and the diameter of the smaller one is one-third of a foot. The nozzle is designed in a funnel shape. The openings designed at the bottom of the funnel are one-foot, one-third of a foot, and three.

The analogy of one-tenth of a foot. That's it. Indicate the size. Then write down the precautions. Call the servants to go to the blacksmith to make it. When leaving, warn again and again. It must be thin and light.

After designing the nozzle, the next step is the missile body. Considering the overall situation of the missile body, Naofumi also designed a lot of specifications. Basically, it is designed into two categories: large rockets and small rockets. The larger ones can be used to set up launchers.

Launch. Small ones can be carried on the shoulder.

Large rockets are designed to be longer. But the specific size depends on the balance of the entire assembly. There is also the trajectory after launch. There is also the trajectory of movement. These are raw data and must be measured. Think about testing.

Naofumi felt that the head was too big and there were no measuring instruments. Even for time, there was only an hourglass. This thing was useless.

In order to obtain first-hand data, Naofumi only needs to design more projectiles. Three-foot, four-foot, five-foot, and one-foot. In order to facilitate future production, Naofumi all used short selling in the middle of the year, and finally used

The technology of synthesis by locking. This technology is not too difficult in the hands of Chinese carpenters. Naofumi deliberately left some blind spots in the middle, which are the locations of encapsulated propellants and warheads. Since everything is missing, Naofumi must do it himself

to solve it.

Similarly, after designing the drawings, they were handed over to the servants. Meng Tian came in and served breakfast. It seemed that he had been busy all night. He was tired enough, but the problem was not solved yet. Naofumi ate a piece of dry biscuit in one hand and held the drawings in the other.

Let's see if it should be changed. Meng Tian came into the room and took a look, and left without saying anything. Because he was used to it. Shangwen was so busy every day.

Warhead. To detonate the warhead, you have to consider the weight of the warhead. At this time, everything must be combined together. Then there is the method of detonation. Which method should be used? Naofumi sat on the bed with a

Keep tapping the table with your hands to get inspiration.

Suddenly, he slammed the table with his hand and threw the cannon. Naofumi had studied this kind of thing when he was in elementary school, but he needed materials. Naofumi immediately made a list. The most important one is silver salt. This thing can be extracted from table salt. From

After instructing his subordinates, Naofumi began to think about another way to detonate. Naofumi felt that throwing the cannon was unreliable, so another very simple way to detonate was to draw a fuse from the propellant. This length

It is more difficult to master. If it is short, it will explode before it reaches the distance. If it is long, it will not make a sound when it lands. You can try this many times.

Another way is to use your own invention of a grenade device. This mainly needs to be improved in terms of sealing. Naofumi found that the first few batches of grenades had a problem of duds due to sealing problems. This is not a joke. You already have paper, you just need to add wax

Or grease, you can develop wax paper, and the problem can basically be solved. The next step is to prepare the materials.

Naofumi listed a lot of things on a piece of paper and started to grab the medicine according to the order. The people who bought the materials to make the projectile parts came back. Only then did Naofumi realize that he had been busy all morning.

After lunch, Naofumi began to assemble the projectile body. Process the oil paper. Since candles are still rare, they can only use oil paper.

After taking a nap, it was already night when I woke up. The servants dug out a stone of sand from the saline-alkali land. Naofumi solved the problem of silver salt. Boil, filter, boil, filter, and crystallize. The salt can be extracted, Naofumi.

But he unexpectedly discovered a very small amount of sodium carbonate. He then boiled it, filtered it, and crystallized it, but still found nothing. Naofumi began to think about other ways of detonating it.

He gave up extracting the silver salt and started assembling the projectile, filling it with gunpowder. With oil paper, Naofumi easily separated the warhead and propellant. Moreover, in order to prevent moisture, he specially wrapped it with oil paper and simply connected the fuse and a rocket.

The projectile is basically formed. There is a fuse between the propulsion part and the warhead. The impact type will be redesigned.

When designing the grenade's firing wire, Naofumi borrowed it from a lighter. Later, during the design, it was gradually improved, and the grenade was born. It was just a prototype at the beginning. Considering the impact effect of rockets, Naofumi decided to give it a try. This time, Naofumi wanted to avoid rockets.

The bomb cannot detonate after hitting the ground. A double-safe detonation method is adopted. That is, a double iron ring is installed on the flint rod. Then a parallel connection method is adopted, and the two action rods jointly detonate the warhead. Naofumi's separate design becomes a modern fuze.

The prototype of.

After finishing all this, it was already night. Shangwen breathed a sigh of relief, only to realize that he was really tired. Such lifeless work was really undesirable. I just didn't know if Great Qin would provide subsidies.

Seeing that the rest was just assembly work, Naofumi simply tidied it up and ordered Meng Tian's men to keep a close eye on it. Then he went to the bedroom and fell asleep. He was really too tired.

In my sleep, my mind was still sorting through the results of the day. There were also those unexpected discoveries, situations that had occurred during experiments, and data that should be recorded. These kept flashing back.

Naofumi felt that someone was pushing him. He woke up in a daze and found Meng Tian. Meng Tian looked frightened. After he calmed down, he heard clearly: "Sir, you finally woke up. We thought you were hit.

The devil kept muttering something. It almost scared us to death."

Naofumi felt that he was indeed very tired. He waved his hand to indicate that it was okay and let everyone disperse. He got up and continued loading the projectile. Leave these matters to the servants. Naofumi was worried. After all, this was a test product, not a finished product. Meng Tian looked at it.

Zhu Shangwen was about to speak but stopped. He didn't say anything.

Two days later, the rocket test began. The princess actually got the news and came. Naofumi felt his scalp numb.