……

The war drums on the warship are used to give orders, which has several disadvantages.

If there is a headwind, the drum will be blown to the side, and the drum sound standing in the wind can be transmitted to the tail of the wind for a long time. If you stand at the tail of the wind and want to spread the sound of drums to the wind head, there is no way to reach it.

When the wind is calm, if the warships chase the enemy and are far away from the main general's ship, the main general's ship wants to send orders to the warships to let them come back, but it will not be transmitted. If you are made to turn the tiger away from the mountain at this time, then the rear will be eaten.

If it is far away, there is a deficiency, and it is not good if it is close. The Lord will ship to pass the order, and the other ships will give back to the Lord the ship to receive the order, and they will also respond with the sound of drums. Either they discovered a new battle situation and reported the situation to the main ship, or if they had something to tell other ships, it was through the sound of drums. When this battle starts, there will be more information to be transmitted, and all the drums will sound, so how to distinguish which drum is from which person? It's impossible, it's all messy. It would be even worse if the battle of the enemy and the enemy and the enemy and the drums of the enemy and the enemy were also sounded together, and who knew which drum was transmitted to them?

As General Yan walked, he talked to Li Chengqian about these shortcomings.

As the commander at the bottom of the navy, he has long been aware of these problems, but for so many years, everyone has been thinking about how to make the navy fight in an orderly manner, and they have not thought about how to find new ways to change.

Li Chengqian's statement made General Yan feel a little hopeful, but he didn't understand the essence of these casual words, so he invited Li Chengqian to go over to his side for a drink in the evening. Let's talk about it.

It's okay to be idle, and it's okay to go back in a few days.

So Li Chengqian agreed.

At night. General Yan set up the wine and food, and Li Chengqian took the old dragon. Monk Zhu, as well as Cheng Wenxiao, the little hostess, passed.

As soon as he sat down at the wine table, Li Chengqian first took out a few flags that he had people cut out, and then talked to General Yan at the wine table. Captain Cao, who brought Li Chengqian over, was also here, but he didn't sit down and poured wine next to him. But it can be seen that he was called over to see the flag order. It seems that this lieutenant, who is guarding the shipyard, is a close confidant of General Yan.

While drinking. While teaching Qi Ling, there were several people next to him recording something, and at the end of the drink, Li Chengqian didn't know what he had said, anyway, when he woke up in the morning, his head was dizzy.

Then he found that General Yan was gone, and when he was found, he had several flags planted on his back. Red, green and yellow, this is to be a traffic light!

On the playground, there are also quite a few soldiers, holding flags and waving them in the distance.

Look like this. They listened to what they were saying, and then they wanted to experiment with the flag order and work out their own set.

Flag Order. Just know a creative idea and customize a fixed gesture. That's it.

In three days, General Yan and they took their original drum order. It was transformed into a flag language, and then it was assembled again, and it went out to train as a result.

Li Chengqian got on the boat again. Isn't there no drum sound this time, so don't be afraid of ear abuse.

Otherwise, Wenxiao is a little sadistic.

Lao Long and they knew that they would vomit when they got on the boat, but Li Chengqian's safety was responsible for them, so it was natural for them to come over.

But Cheng Wenxiao didn't use it, but she still came, which was really a bit masochistic.

Before Li Chengqian got on the boat, he told her that it would be better if he cut it into his navel with slices.

After going to sea, General Yan and the others began to experiment with the flag order, because of the experiment in the first three days, the heralds were familiar with the flag order, and the reaction was very smooth.

All in all, this flag order can be regarded as a preliminary practice, and it has succeeded.

But there are still some problems, whether there are some orders in the flag order, there are too many actions, it is not easy to express, and whether it is universal and simple, there are more orders.

Li Chengqian decided to work with them to perfect the flag order, and of course, the light order, which was used at night.

However, after half a day of study, Li Chengqian heard news from the navy that five large ships had entered the inland river downstream.

Five, or into the river, so where did this ship come from?

He thought at once of the sea ships, the ships that had gone to Europe had returned.

His face was happy, he didn't stay here anymore, he wanted to go back to Chang'an to see how the situation was!

So he threw the matter of the flag order to General Yan to do it himself, and went back to Chang'an by himself.

He and Cheng Wenxiao were still reluctant, from Donglai to Qizhou, this road walked slowly, walked for half a month, and sent Cheng Wenxiao home, Li Chengqian and they quickly went to Chang'an.

Originally, the ship must have been slower than the horse, but I heard that the big ship entered the inland river a month ago, so the ship should have arrived early, and the things were also sent to Chang'an.

This was the first voyage, and Li Chengqian was a little looking forward to what it would bring.

With ten days less time than the last time they came, Li Chengqian and the others finally arrived in Chang'an. It's been a long run, and it's really dusty.

After staying in the nearest city to Chang'an for one night, washing his face, he entered the city and returned to Furong Garden.

Although they survived last night, they were still made like bandits by the dust and sand along the way, which startled a group of people in Furong Garden, and then recognized Li Chengqian, and everyone was happy.

It's the middle of summer when you go out, and it's late autumn when you come back.

When you arrive in Chang'an, there is no need to rush things. First, let people go to each house to report the news, and they came back.

The palace, the Cheng family, the cooperative family like the Wang family, Yu Zhining, Zhu Fatzi's subordinates, and of course, Gui'e's mistress.

Report a letter first, and then go to everyone who needs to go to the door in person, and then go to see.

I wanted to see the queen again tomorrow, but after the queen heard the news, she came to Furong Garden first.

When she entered the door, she saw Li Chengqian holding his son, and Xiao Li Xiang looked at this stranger with a bearded and scummy face at this time, and cried loudly, but this cry did not call for the rescue of her dear mother, nor did she get the help of the two dear aunts, but they were giggling and laughing endlessly, and this strange bandit was also laughing happily. It's still good for this grandmother, she rescued herself when she came in, and then slapped the bandits, and finally kept the bandits away from her.

Bandits are terrible!

Thanks grandma!

"Queen Mother, this child doesn't kiss me, what are you beating me for?" Li Chengqian said aggrievedly.

The queen said angrily: "You don't shave your face when you come back, look at this hair, it's all like a hairy person, and you're embarrassed to say it......"

…… (To be continued......)

PS: Thank you @SW Baomu @ Idle Reading World Book for voting for the monthly ticket! #来到大唐的村官#第940章感言.