Shang Wen didn't know how many people and ships there were in the navy, but it should be possible to transport a part of the troops.

Shang Wen thought of one person, that is, Zhang Han, and now the navy is still in a hazy inspired loading, and a large part of the navy still maintains the original mode and has not made great changes. Not much is known about the current state of affairs. Rather, it is a naval academy. The people who were drawn were all elites of the navy, and they probably knew a little more. Come to think of it. Shang Wen immediately reversed course. Head to the Naval Academy.

In the Naval Academy. Shang Wen found Zhang Han. Zhang Han has now invisibly become the leader of the navy. When Shangwen found him, the Army-born naval cadet was working heavily on the shipyard. Preparing to build a small ship. There are no masts, only tall chimneys. Shang Wenming confessed what they were doing.

It is estimated that Zhang Han, who has the funds, took the naval cadets to various factories, and in the factories, they became interested in this kind of steam engine, which was popularized in large quantities, so they began to try to use this steam engine as power.

However, Shang Wen walked into the dock and saw the huge paddle wheels on both sides of the ship, and was very disappointed, and instead of using the propeller design, he used this bulky paddle wheel design with many shortcomings. It's really bad.

"Your Excellency. What do you think? Our new ship. Zhang Han said.

"Why not use propellers?" Shangwen asked.

"Propellers?" Zhang Han asked suspiciously.

"Propeller, you don't know?" Shang Wen asked rhetorically.

Zhang Han nodded. Shang Wen was a little puzzled.

"You don't see the rotors-like things on the airships." Shang Wen said.

"We haven't seen any airships at all. The Heavenly Army is mysterious every day. Departure early in the morning. Came back very late in the evening. Zhang Han said.

Shang Wen couldn't figure out what the Heavenly Army was doing. But Shang Wen was able to guess that it was estimated that the Celestial Army had imposed some kind of technical blockade on the navy and army. This is all taught by Shang Wen. Now they're using it right for that. Every day, the army is pulled out and taught in another venue. The Heavenly Army's hand is a little out of sight.

"I see. Then I called them back. That's pretty much what the propeller looks like. Shang Wen said and took out his notebook and sketched it. Then tear it off and hand it to Zhang Han.

"If you're interested, you can do your own research." Shang Wen said.

"Yes, sir." Zhang Han saluted.

"Hey, hey." Shang Wen smiled.

"That's right. I'm here to ask you something. Shang Wen said.

"Oh. Speak, sir. Zhang Han said respectfully.

"I came this time to find out how many ships the current navy can mobilize to help the army transport personnel, weapons and equipment, and logistics materials, and the pressure on land transportation is really too great. You also know that there is only one highway in the Qin State now, which is the one in the north. In other places, there are basically dirt roads, and the road hardening facilities are very imperfect. I can't stand the army tossing back and forth like this. Especially those cavalry and artillerymen. Shang Wen said.

"My lord, it's not that the last general is unwilling. It's just that it's the season now. It's already winter. The Wei River is in a dry season. Large ships are impassable, and there are places where you go altogether. Even barely entering the Yellow River waterway. All that entered were small boats carrying a dozen people. And ・・・・・・," Zhang Han said hesitantly.

"And what?" Shangwen asked.

"Also, there was a few snows a while ago. Some places have been frozen for a long time. Zhang Han said simply.

"Dry period, freeze." Shang Wen muttered in his mouth. It's not the right time to transport it. Shang Wen thought to himself. Zhang Han still pays attention to hydrological conditions, and only from the analysis of hydrological conditions, it will be vetoed through waterway transportation.

If water transport is not feasible, the pressure on land transport suddenly rises to an extremely stressful state. How to solve this problem. Shang Wen found it very tricky.

"Is there really nothing the Navy can do?" Shang Wen decided to make another confirmation.

Zhang Han nodded.

"The current situation is not good." Zhang Han said. Zhang Han also pointed out the unfavorable conditions for the current development of the navy. Shang Wen picked up his notebook again and wrote it down.

"You get busy first." Shang Wen said.

"Yes, sir." Zhang Han saluted and left. Shang Wen began to record in his notebook. The location of the Qin State is located in the north latitude, coupled with the continental monsoon climate. This greatly restricts river transport, especially in hydrological conditions. Dry and flood seasons. In both cases. will result in a suspension of transportation. At the same time, coupled with the special geographical location, the location of the Qin State is to the west. In order for the Navy to develop rapidly, there was a certain congenital deficiency factor from the beginning.

This congenital factor, with the support of huge funds, cannot be seen for the time being, but if capitalism develops in the Qin State. This huge demand has become the short leg of the navy. Finally, a fatal blow to the Navy.

The only thing that can be used well is the other waterway. Yangtze. Foreign countries label it as the Yangtze River. This waterway starts from Bashu, and after the Three Gorges, it is the golden waterway. The water source is abundant because of the influence of two monsoon belts. Bashu is the southwest monsoon, the southeast monsoon in the middle and lower reaches of the Yangtze River. The two monsoons do not coincide in time. That was the best naval position, and from there, the Qin State would be able to gain access to the sea. Then the materials obtained by sea were transferred to Xianyang by rail, or in Bashu and other places, to develop the industrial system of the Qin state.

All of this has made Shang Wen decide that the Naval Academy is going to move. Their main direction is to turn further south. There they will get their own access to the sea.

However, the current problem has not been solved. That's the road transport problem. How to quickly transport a force of tens of thousands of people to the battlefield. The roads are in poor condition and a great challenge for those who travel by car. Plus artillery for artillery. and the supply of supplies for the period that followed. When this army returns. It is estimated that it is another crushing of the road. After the exercise, the road will have to be renovated on a large scale.

Can you come up with a fast and convenient road. As long as this problem can be solved, the transportation problem can basically keep up. Moreover, as soon as the exercise is over, this large army will have to move in another direction. The Yueshi of the West. It was their main battlefield, and with their unfamiliarity with geography, they desperately needed a fast way to secure logistical supply lines.

Sapper. Sappers must be solved.