Shang Wen vetoed his advanced design plan, mainly according to the current level of processing, it is very difficult to make. Hang gliders require a large number of planks, and carpenters can only use the hand-planing method to process them, which is both costly and time-consuming.

Now there is an urgent need for airships, especially in terms of time requirements. After the parachuting training of the first batch of officers of the Celestial Army, the official flight lessons will begin. Hot air balloons are not enough to fly. The main thing is that there is no motivation. A flying machine without any power cannot carry out military combat operations.

Shang Wen designed an upgraded version of the Flying Eagle 1 according to the blueprint of the original Flying Eagle 1.

Its overall frame is twice that of the original Flying Eagle 1. Two four-bladed blades were used as propulsion units. It was powered by a steam engine with a cross rudder attached to the tail of the airship. Basically, the design is similar to that of the Flying Eagle One. It's just that the heating device has changed from one to two. Place it in a single row before and after to speed up the filling of hot gas.

After designing these, Shang Wen ordered the drawings to be sent to the airship workshop.

Shang Wen suddenly remembered that he could make a model as a reference first, so that the coefficient of difficulty in processing would be greatly reduced. So he ordered someone to go to the airship workshop to make a few models of airships first.

In fact, the model is not only used as an indicator in the manufacturing process, but also as an important tool in flight simulation in flight training. Pilots can simulate the actions of operations, plan the combat area, and have the sequence of combat plans, so as to strengthen the pilot's intuitiveness, such a teaching method, can deepen the students' ability to learn and accept. At the same time, it can also stimulate students' ability to learn and innovate on their own. The last point is the most important thing.

After Yingyu left from Shangwen, she flew to King Qin to ask for money.

"What, asking for money?" King Qin was a little surprised by Yingyu's actions.

"When did the widow owe you money?" King Qin said.

"Those muskets of yours, those guns, I made them." Saying that, Yingyu pointed to herself triumphantly and said.

"You made it?" King Qin put down the pen in his hand and said.

"Yes, I made it. I spent a thousand gold to build a gun factory. Yingyu said.

"What else?" King Qin asked.

"Also, I can make my own money. I earned my first money from Qi Guo's order, but it's a pity. All this money was used to produce the muskets of your musket regiment, Father, and the money I earned is gone. Yingyu said.

"Oh, how did I not know?" King Qin said.

"Of course you don't know, but if you look it up, you'll understand. Those guns have my name on them. Those guns of mine have a text on them. Yingyu said reasonably.

"Really?" King Qin asked.

"Really." Yingyu said.

"Nonsense." King Qin scolded softly.

"What's the nonsense. The father and the daughter are also relieved of their father's worries. Just with that bad guy's arsenal, how many muskets can be produced, that's two hundred a day. Now I can't produce one a day. All the production lines are transferred to me, and I have there, although they have just been put into production, and they will produce 3,000 units a month, but if your father gives me this money, I can build another factory. Such. Won't more muskets be produced? Yingyu said.

"What do you say. The arsenal does not produce a single musket? King Qin asked.

"yes, that guy gave me a whole production line and let me produce it myself. What's wrong? Yingyu asked.

King Qin couldn't figure out Shang Wen's move. The arsenal is running well, why did you transfer a production line to Yingyu.

"Zhao Gao, prepare the car, go to the arsenal." King Qin shouted loudly.

"Father. Father. King Qin left the palace in a hurry. Yingyu also came out together. King Qin had to be in a hurry, and the arsenal transferred a production line out for no reason, not knowing what his intentions were. This Shang Wen's approach has exceeded King Qin's imagination.

King Qin's carriage sped towards the arsenal. Shang Wen himself, on the other hand, was observing a large number of his instruments. Shangwen is rerefining alcohol.

While refining alcohol, Shangwen is developing batteries, and now that sulfuric acid is available, lead is not a problem at all now, and a large number of bullets are this raw material. Shang Wen took out a small clay pot, there is no way, there is not much sulfuric acid manufactured, and now it is basically obtained in the laboratory, and it is not the kind of large-scale industrial production of sulfuric acid at all.

Then, Shang Wen used the lead he found as an electrode and put it into sulfuric acid. Then a series of treatments such as sealing are carried out. When that's done. Shangwen is conducting battery testing.

The two wires are first attached to the motor and then to the battery. Shang Wen in order to prevent being electrocuted. Gloves were used exclusively. Increase the insulation of the hand surface. Although the electricity is small. But it's better to be careful.

King Qin and his entourage came to the arsenal quickly. Zhao Gao immediately went to find the steward and asked about Shang Wen's whereabouts. Fortunately, when he heard that Shang Wen was in his room, King Qin immediately came to look for Shang Wen.

Zhao Gao opened the door carefully. Zhao Gao also understood. King Qin had great respect for Mr. Qin, especially when he was doing experiments. I am most afraid of disturbing Mr. Qin.

King Qin came in cautiously. Yingyu followed suit, and it was the first time he had seen his father do this.

And Shang Wen is now in the midst of his own experiments.

“OK。” Shang Wen carefully connected the wire, and saw that the motor began to rotate continuously. Shang Wen picked up his notebook and began to make some notes as he observed. These recorded data are the original data.

Shang Wen looked at the rotating electric motor and wondered if it was time to invent an instrument to convert manpower into electricity. for storage. At the same time, a large number of instruments and equipment are also needed to detect voltage, resistance, and current.

"Hey, it's moving. Father, you are moved. Yingyu was like seeing something new and weird, and stepped forward directly to move.

Shang Wen was startled when he heard this voice. When he turned around, he saw King Qin. And Yingyu has to step forward to move the motor.

As soon as he thought of safety, Shang Wen immediately shouted loudly, "Stop." Shang Wen immediately stepped forward. Unplug the wire from the battery. Then place the battery carefully and properly. Then he saluted the King of Qin.

"The ministers see the king." Shang Wen saluted.

"Sir, please get up. I don't know, sir, what kind of experiment did you just do? King Qin asked.

"Back to the king, the minister has just been experimenting with electric motors and lead-acid batteries, and he has just been rude to the princess, and he is really forced to do so. This lead-acid battery. A large amount of sulfuric acid is used in it. This sulfuric acid is very corrosive. Once the human body is contaminated. The skin will quickly become dehydrated and there will be a strong burning sensation. Extremely dangerous. Shang Wen said.