The water battle lasted from morning to afternoon, from the mouth of Dongting Lake to dozens of miles downstream. Liu Sancai returned to Shuizhai with his fleet.

Although the navy of the Chu army, relying on many ships, small ships and fast speed, has been chasing the Chinese warships, the losses of both sides are not in direct proportion.

The Chu army's big ship didn't dare to get too close. As soon as it got close, it would be riddled with holes, and the small boat couldn't bite the Chinese Army's warship.

In addition to throwing fire oil tanks, you can only throw ropes and climb up to fight a string war. Therefore, countless people were injured and killed by the fire guns and thunder of the Qin army at the end of the day.

However, the 70 warships of the Qin army were also uncomfortable.

Because the other side had too many small boats and too fast, it was almost impossible to prevent. Although there were only a few hundred casualties, most of the warship decks were burned in a mess, and more than a dozen of them caused the thunderbolt explosion above and blew out several big holes.

Fortunately, the shells of the Fran machine gun are wrapped in a copper shell and packed in a special small wooden box, otherwise it would be a disaster today.

Night fell.

There was a little fire on the river. Looking at the burning black warships, Qin Huan also understood that land and water warfare was no better than sea warfare. According to today's situation, it might be difficult to win the other side's navy with these 70 large ships.

The key is that the other party has too many boats. Today, the other party just throws fire oil tanks. Who knows if it will be filled with fire medicine barrels to ignite tomorrow.

In fact, the threat of fire oil tanks is not big as long as they are prepared, but the lethality of a small boat filled with powder kegs is terrible. It is estimated that only one can sink his 400 DWT warship.

In the cabin, Qin Huan summoned the captains of all the warships and wanted to ask about the countermeasures. After all, he knew something about naval warfare. It was just that the ship was big and there were many guns, but water warfare obviously couldn't work.

"Your Majesty, the last general thinks we can also collect a large number of boats and let our brothers take the boats to intercept the enemy's boats. As long as we clean up those boats, the other party's navy can only hide in the water stronghold or flee to Dongting Lake."

A dark faced man hugged boxing.

This man is the deputy commander of the navy camp. His name is Hou er. He is about thirty. He is also a water bandit. He is the leader of a group of water bandits recruited by Qin Huan last year.

Water bandits, large and small, recruited more than ten people, hundreds and thousands more, dozens and hundreds less. After eliminating the old and weak, Qin Huan incorporated them into the navy camp.

"This is really a way, but in this way, the brothers must fight each other's boats."

Qin Huan nodded and said helplessly. In his opinion, the water war should be a real warship, rolled with advanced firearms, rather than these opportunistic means.

"Your Majesty, the last general has heard before that the Ming navy has a firearm called fire dragon water out. It not only has a long range and great power, but also has a hit rate several times higher than that of a cannon. It only takes one to sink a 100 ton ship."

A burly man thought and stood up.

"Oh, and this thing? Better than a cannon? "

Qin Huan's eyes lit up. He knew that although the navy of the Ming Dynasty was rotten, the past glory was not comparable to that of the Portuguese and the Dutch. Moreover, there were many firearm patterns. It was said that even the mines were made, but he had never heard of the fire dragon coming out of the water.

"Back to the king, the fire dragon water is somewhat similar to the divine fire flying duck..."

The burly man quickly explained that he had no enough hands to dance in the end. The more he said, the more excited he became.

Qin Huan was shocked when he heard his description. Where the hell is the fire dragon?

It is the Ming Dynasty version of the missile.

Because the fire dragon comes out of the water, the main body is a long big bamboo tube, and the tail is tied with four small bamboo tubes, which are loaded with gunpowder for launching and pushing.

The long bamboo tube in the middle can be filled with gunpowder, igniters, or even half.

This is as like as two peas in modern rocket launches, especially when the four small bamboo tubes are burning.

"What did you do before?" After Qin Huan recovered from his shock, he stared at this guy. The fire dragon out of the water weapon is definitely not known by ordinary bandits, let alone so detailed.

"Back to the king, the last general's ancestors for three generations used to be the navy of the Ming Dynasty. But at the end, he couldn't get along in this area, so he started this business without capital. He used to make a living in the Jiangnan area. Later, when the market was bad, he came to Huguang."

The burly man's name is Liu Yan, and he dare not hide his past.

"Well, from now on, you are the deputy commander." Qin Huan nodded, not surprised. What the Navy lacked was talent, so he said.

As for why he couldn't stay in Jiangnan, he didn't go deep into Huguang.

Although the fire dragon water out principle was simple, it was not something that could be made in a moment. Seeing that there was no other way, Qin Huan had to take Yuezhou down first.

After giving orders, the people immediately went down to prepare, but Qin Huan couldn't help taking out his pen and paper and began to write and draw.

Reminded by the fire dragon coming out of the water just now, several kinds of rocket weapons with gunpowder as thrust have popped out of his mind. As a modern man, no one knows better than him how to use firearms.

Qin Huan first thought of a weapon to deal with small targets. In fact, he made a one meter long bamboo tube, opened the middle and stuffed a wooden plug. A small hole was left in the wooden plug to place a fuse.

The second half of the bamboo tube is filled with gunpowder for firing. After the gunpowder is burned out, the gunpowder in the first half will be automatically ignited and exploded. In addition, you can also learn from the fire dragon water, and put some kindling things on the top of the bamboo tube, such as cotton compacted with fire oil.

In fact, compared with the lethality of gunpowder explosion, large-area combustion poses a greater threat to ships.

The top of the bamboo tube is made into a cone, and then four tail wings are installed. It can be launched by making a special frame. The range does not need to be too far. 100 meters is enough. It mainly makes up for the shortcomings of not far throwing thunder and low killing power of fire gun

He believed that as long as he aimed at a distance of 100 meters, he had a tail to keep balance, and the workmanship was more exquisite. When dealing with small boats, let alone 100% hit, he should still be able to do seven or eight out of ten.

In this way, there are not too many launchers that can move up, down, left and right. Only four rockets need to be installed. In the future, no matter how many small boats are, they can't get close to the warship.

The operation is also simple and convenient. The key is that the firing speed is not comparable to that of artillery. With the cooperation of several people, it is not a problem to launch five or six rounds a minute. Once this thing is made, it is definitely a nightmare for small boats.