Chapter 4 Aviation Afterburner The fleet raided Tsushima

After discussing with Lu Chengxiang about printing kiln coins, Zhang Zhimu said to Li Yunhe: "Yunhe! Our stall is getting bigger and bigger, you must not get stuck in things, and you must use your main energy on employing people and planning. Uncle Chen instructed me to grasp the key point. Especially when it comes to airplanes. I also think that the next breakthrough we need to make is the matter of airplanes. Mr. Ouyang also said that we should develop an aircraft that can fly at sea. ”

"An airplane that can fly on land can fly at sea." Li Yunhe said.

"The principle is the same, but if you build an airfield on the seashore and on an island, then the aircraft needs to consider factors such as the corrosion of parts and components by high salt."

"Hey! The equipment on our ships has to be corrosion-resistant. Li Yunhe still disagreed.

Zhang Zhimu didn't say anything more about this, but said: "I think we should think about aviation in the long run." I propose the establishment of an aerodynamics research laboratory, where we should use theoretical calculations and experiments to calculate the drag and lift of the wings and fuselages of aircraft. It is also necessary to study the theoretical problems of aerodynamics. Aircraft can no longer be built on the basis of experience and experimental design. Once the front and rear wing airfoils of the aircraft have been designed, we should be able to calculate their lift, so that the moment balance of the front and rear wings can be calculated. You can't expect everything to be tested in a wind tunnel. ”

"I also have this idea, I wonder if I would talk to Mr. Lu and let them study physics or mathematics students come out and take the lead in doing this. Just like Yang Chang, who studies radio, it is much better to have such a person to take the lead. Li Yunhe suggested.

"Hmmm! Your idea is good! This aviation will be an important development direction for us in the future. I think Mr. Lu can also endure the pain of love! Zhang Zhimu said.

"By the way, our wind tunnel, the carpentry work is over. The rest is Li Di's debugging of the high-power fan. Li Yunhe said, "If you want to achieve high wind speed, this fan is not small. A large fan blows the wind into the small hole to ensure speed. ”

"You're still a low-speed wind tunnel." Zhang Zhimu said, "High-speed wind tunnels are not possible with fans. A high-speed wind tunnel is where air is compressed and then released to form a high-velocity airflow. ”

"Oh my God! There's a lot going on! Li Yunhe exclaimed.

"There are a lot of wind tunnels! In order to generate supersonic airflow in the future, it is necessary to accelerate the air through a small aperture, and then suddenly expand the cavity, so that the air pressure is suddenly released, and the speed is increased to reach supersonic speed. It is also necessary to simulate situations such as high temperatures, rain and snow. Take your time later! There's a lot going on! ”

After Zhang Zhimu finished speaking, Lu Chengxiang chuckled and said, "Hehe! Yunhe followed Mr. Zhang to slowly grow insight! There's a lot of things you haven't seen before! ”

Li Yunhe scratched his head and said, "It seems that I can't finish this life!" ”

"And yes! As I told you last time, are you ready to develop jet engines? Zhang Zhimu asked Li Yunhe.

"Some of the people I organized us to work on engines have studied it a few times, but they all think it's too difficult." Li Yunhe said worriedly, "Besides, no metal can withstand such a high temperature. ”

"Yunhe, in the future, when our propeller plane reaches a speed of 800 kilometers per hour, the propeller will be shattered due to vibration. If you want to increase the speed of the aircraft again, you have to use a jet engine. Zhang Zhimu said, "This matter must be broken through." I can give you a suggestion, you need to develop high-temperature resistant alloys first. You can use nickel-chromium-molybdenum alloys to develop high-temperature resistant alloys. ”

"Good! I think we should start with the development of high-temperature resistant alloys! After Li Yunhe finished speaking, he looked at Zhang Zhimu and asked, "What you just said is that 800 kilometers per hour?" How fast do you have to fly? ”

"Yes! This is not enough, it will be faster in the future! ”

"Oh my God! If you go to Baotou, won't it be there in a while? Li Yunhe said.

Lu Chengxiang asked: "Yunhe! I've heard that you're also working on a two-engine plane. Such an aircraft can transport both goods and people, and this matter should be hurried! ”

"Mr. Lu is thinking of making money, right?" Li Yunhe said jokingly.

"Hey! It's right to make money, but with an airplane that can transport people, where is the problem, we can just get there by plane, how much can this save? The telegraph calls are not as good as our people. Lu Chengxiang is already thinking far away.

"I don't think it will be long." Zhang Zhimu said, "Yunhe's current plane can take another one from Yaogang to Baotou in addition to the pilot." However, on such a plane, Lu Chengxiang sat on it, and he had to vomit out his intestines. ”

"Hmmm! Not necessarily. Lu Chengxiang said, "Mr. Zhang, don't forget, I was born not to get seasick." ”

"Yes, I forgot about it," Zhang Zhimu would say to Li Yunhe, "one day you can arrange for Mr. Lu to take your plane to Baotou." ”

"Okay! Mr. Lu can sit down. Li Yunhe said, "I think this second plane is better than the first, and our fuel tank has increased a lot." The battery life is stronger. ”

"From now on, you have to continue to add talents to the aviation department." Zhang Zhimu said, "The students who graduated this year should be left to them. ”

"I think that when we enroll students this year, we will recruit such a class, and now let them study for four years, and they will be able to supplement after graduation." Li Yunhe said.

"The little family is angry, if you want to recruit, you can get two classes." Zhang Zhimu said, "One class focuses on theory, and the other class focuses on processing and production. On the plane, the specialization will be more and more detailed in the future. You remember, soon Yang Chang's computer will be able to reach the practical level, and now it is enough to perform simple mathematical calculations, and you can immediately carry out complex scientific operations, and all of you in all walks of life must be prepared to meet this. In the past, it was impossible to calculate because of the amount of calculation, but it can also be done. This computer is coming to us, and you all need to be prepared for that. ”

"Of course that's good!" Li Yunhe was happy.

After Mu Yi and Zheng Zhilong defeated the Japanese, they gave a captured Japanese warship to several Korean captives who could make the ship and let them go back to report the news. Then, after some deliberation, it was decided to set out as soon as possible and seize Tsushima before the Japanese found out that their naval fleet was destroyed.

"We left 3,000 prisoners for Jeju Island, and these prisoners and the soldiers we left behind are enough to build Jeju Island," Jung Ji-ryong said. ”

Mu Yi said: "I think it's okay, we also need labor to build on Tsushima. Besides, more than 6,000 captives remained on Jeju Island, and it was also a burden for them to take care of them. They also had a few North Korean prisoners. To garrison such a large Jeju Island, the number of troops is also very tight. ”

There is already a 5,000-ton ship unloading and another unloading. The freighter was left to continue unloading, and the 5,000-ton freighter set off with the fleet and headed straight for Tsushima.

Mu Yi and Zheng Zhilong both knew that when the Yuan army attacked Japan, they were defeated by the so-called "kamikaze". However, Zheng Zhilong knew that it was the wrong time for the Yuan army to choose, and they all chose the season that was prone to typhoons. Now they are not worried, because it is winter, and it is not easy to encounter typhoons, besides, the wind resistance of the ships in Yaogang is not comparable to the ships of the Yuan army at that time.

Tsushima Island is actually divided into two large islands, the upper and lower islands, which are very close to the north and south, the main island is the upper island in the north of Manseki Seto and the lower island in the south, and in addition to the main island of Tsushima, there are more than 100 affiliated islands nearby. The upper and lower islands of the main island are collectively referred to as Tsushima, and the Tsushima and dependent islands are collectively referred to as Tsushima.

Tsushima is located about fifty kilometers from the Korean Peninsula, and his location dictates that he is a stepping stone between Japan and Korea.

However, now the kiln people have to set one foot here first.

Zheng Zhilong was very familiar with the situation here, and his goal was to capture Yanyuan Harbor first. Because it is a natural sheltered harbor, it can also dock large ships.

Tsushima Island has always been under the administration of the Mafan clan, and the current Daimyo of Tsushima is Soyoshisei.

Tsushima is mountainous and does not have much arable land, but Tsushima has a very good relationship with Korea, and they have always monopolized the trade between Japan and Korea, so they earn a lot of money. When relations between North Korea and Japan were tense, they did not break off relations with the North Koreans. Even if war breaks out, trade will soon resume, which may be the reason why both sides have an interest.

The Tokugawa shogunate did not dare to despise Tsushima, and since the first feudal lord Zong Yoshichi, the Tsushima Fuchu Domain has been courteous as the lord of the country with 100,000 stones. That's a lot of courtesy.

Tsushima has deep roots in Tsushima Island, and it is also a rich party, raising a lot of samurai, so it is inevitable that it will be a little arrogant. They also knew that Tokugawa Ietsuna had sent a large number of warships to occupy Jeju Island, but Tokugawa Ietsuna did not send them out of Mafan's ship, and Zong Yicheng was a little dissatisfied. Speaking of this, he said to his staff: "Oops! I understand the general's thoughts, they don't let us send a boat to follow, because they are afraid that we will also get a piece of the pie. ”

One of the staff members said, "Master, I think there is some truth in the words of the general's envoy. The general may be really worried that the naval army of the Ming Dynasty will come and seize our Falklands. Let's keep our strength in response, and it's also thoughtful, right? ”

"Huh! The general's large number of warships occupied Jeju Island, and the Ming Dynasty and the Koreans had just finished fighting, and it was impossible for a large number of warships to come in these two directions, and we still need to mobilize here to prepare for defense? It's a joke! ”

Another staff member said, "Master, we still give the order to prepare the forts everywhere!" We have to learn the lessons of the Matsumae Daimyo on Ezo Island. Matsumae Daimyo hasn't been rescued yet! ”

At this time, Zong Yicheng had long been lost the opportunity to attack Jeju Island with the fleet, and he was confused, and shouted: "The fate of our major mycoons must be controlled by ourselves, and we can't completely rely on the generals. If the general wanted to do his best to save Matsuzen Daimyo, he would have done so a long time ago, and he would not have the heart to command the fleet to attack Jeju Island at this time. We daimyo may be bullshit in the eyes of the generals, aren't they! ”

"Hey! I think the master was confused, and the general did not send people to Ezo Island again, because it was extremely cold there, and if the sea ice was not spent, the ship would not be able to get on it. A staff member said.

Another also chimed in: "The general will not tell us for no reason that the Ming Dynasty naval army will come to attack us." Let's inform the turret to prepare! ”

"Alright! If you all say so, let it go. Zong Yicheng said, "I heard from the Koreans that there was a group of kiln gang people in the Ming Dynasty who were very powerful in firearms. The Koreans were defeated by them, and a lot of land was occupied by others. If we want to occupy the Ming Dynasty through Korea in the future, the first thing we will encounter will be the Yaogang people. I want to see if the kiln man has three heads and six arms. It's best that they come early and let them see how good we are at the new Mafan cannon. ”

Regarding several forts in Yanyuan Port, when Zheng Zhilong entered the port with the ship in the past, he also paid attention to it, they were all at sea, and where to familiarize himself with the situation was a matter of care. Therefore, Zheng Zhilong had already drawn a sketch of Yanyuan Port and marked several forts.

But none of them were worried about such a thing, because their batteries were fixed targets, and when it came to artillery, they knew what the Japanese guns were like.

In order to give full play to the firepower advantage, Mu Yi and the others decided to raid Yanyuan Port during the day.

On this day, the sky seemed to be very beautiful, the north wind was much lighter, the sky was cloudless, and as soon as the day dawned, the sun jumped out of the sea with a golden light. Mu Yi and Zheng Zhilong stood side by side on the command ship of the Hongzehu and led the fleet to the sea outside Yanyuan Port.

According to the plan, Zheng Zhilong commanded four steel-hulled warships and sailed into Yanyuan Port side by side. At this time, several ships, presumably bound for Japan, spotted them as soon as they left the port. But they were only stunned. There was no chance to go back and deliver the letter. The warships of Yaogang ignored them, continued to increase their horsepower, and sailed towards Yanyuan Harbor with black smoke.

The lookouts on each ship discovered the first battery in the port of Itsuhara almost at the same time.

The cannons on the ships had already lifted their armors, and the gunners prepared the shells next to the bore, and as soon as they heard the order, they immediately loaded and opened fire. Although the sailors did not find it new to bombard the shore batteries with artillery. But this time it was a bombardment of the Japanese forts, and they blocked the doors of the Japanese to beat them, and they all felt very much looking forward to it. Because they know that the Wako are really hateful. In particular, the political commissar told them several times that the Japanese wanted to occupy Korea and then occupy China, and the sailors felt that it was time to teach the Japanese a lesson, otherwise they would still think that there was no one in the world?

Because the lord Zong Yicheng personally gave an order, asking the defenders on the fort to cheer up and prevent the Ming Dynasty naval army from sneaking attack, the soldiers on the fort really did not dare to slack off. However, they all knew that the Yuan army attacked twice, but they were repulsed by them. And God bless Japan, because both times there was a "kamikaze" to help. Therefore, these Japanese soldiers have no doubts about holding the fort at all, and some of them think that the Ming Dynasty naval army is the best to come, and they have a good chance to make meritorious contributions.

The sentry who was looking out from a high place, when he didn't see the kiln man's warship, found several pillars of smoke on the sea. They immediately reported it upwards because they were informed that the ships of the Ming Dynasty were burning coal. Although it was beyond their ability to understand that the ship was driven by burning coal, they were told that when they looked out, they could spot the Ming Dynasty's warships in advance by carefully checking for smoke columns, and they could figure this out. So, they spotted the smoke column and immediately informed the commander of the battery.

The commander was overjoyed, and immediately ordered all the people to go to the battery, start charging, and prepare to shoot, and at the same time send someone to report to the superiors. Fireworks were also lit on the batteries to inform the other batteries.

There were also some high-ranking fifty, wearing slippers and holding knives, who went to the fort to watch the excitement, and they also went to the fort.

The captains of the Yaogang warships did not need to report from the lookout post, they used binoculars to clearly see the fort and the fireworks. They knew that the Japanese had discovered them.

Several warships have long divided the battery, and the target of this first battery is the Qinzhou. The target battery is a large battery with several cannons on it. The other captains deliberately asked the captain of the Qinzhou through the radio if he needed help? The captain of the Qinzhou hurriedly said through the radio: "You all be honest with me, this fort belongs to Lao Tzu!" ”

As a result, there was laughter on the radio. That's what the other captains heard and deliberately laughed at the microphone.

Since the enemy on the battery was already prepared, the captain of the Qinzhou did not want to risk getting too close, so he ordered one 203 caliber cannon and four 130 caliber cannons to aim at the same time, let the 130 cannon, and test fire one shot. As a result, the shell hit the bottom of the battery, and it exploded with a "boom".

There was another burst of laughter on the radio, and the captain of the Qinzhou knew that the other captains and sailors were watching, but he was not in a hurry at all, and ordered another test shot. Because he knows that this cannon is affected by different temperatures, humidity and different positions, and the shooting parameters are slightly different. When the second shell "banged", the captain of the Qinzhou felt that there was a play. Sure enough, through the binoculars, he saw that the fire on the battery flashed and hit.

After adjusting the parameters and re-aiming, the captain of the Qinzhou: "All the gun positions are here, fire!"

"Knock, knock....." The shells were all fired, and the captain of the Qinzhou saw through the telescope that there were a few flashes of fire on the fort, and then there was thick smoke billowing out, and he knew that it had hit. In particular, the flash looks different, indicating that the 203 shell must have hit. Most likely, there is no need to bombard. Such a battery, one 203 caliber shell will solve the problem.

Sure enough, the lookout reported that the battery had been destroyed. However, the captain of the Qinzhou saw through the telescope that there were barracks-like buildings under the fort, and ordered the cannon to fire three shells around the fort. Ploughed around the battery.

The captain of the Qinzhou didn't know that it was these cannons he fired around the fort that killed the Daimyo of Tsushima Island.

It turned out that Zong Yicheng was leading people out to inspect the fort next to him, and suddenly wolf smoke came from the first fort, which was a signal that the enemy had been discovered. Zong Yicheng hurriedly rode his horse with his staff and ran towards the first fort.

They didn't expect that the battle would start so quickly, and as soon as they reached the bottom of the fort, the first shell of the kiln gang people exploded with a "boom". Although he didn't hit, the impact point was very close, and the power of the explosion was simply terrifying, and the staff and the accompanying samurai said that they would not let the daimyo go to the fort, so they dragged him to a strong house to hide, and told the daimyo to see the situation.

The daimyo also felt that it was too dangerous, so he complied.

The artillerymen on their batteries didn't expect that the opponent hadn't seen what it was like, and they would shoot so far away. But what surprised them was that the cannonball could hit so accurately at such a distance, and the power of the cannonball was beyond their imagination. As a result, the second shell landed on the stone wall in front of the fort, blowing up a large hole in the fort, and the cannons on the top of the fort were shaken out of position, and the ears rang in the ears.

Just when they realized the danger and didn't know what to do, they didn't have to think about everything, and three of the shells of the kiln people directly hit the battery, including a 203 caliber shell. The upper part of the fort was completely blown up, and the cannons and artillerymen, as well as the samurai who were watching the excitement, flew away.

The daimyo was so shocked by the explosion of the cannonballs that he wanted to vomit, but after a while, he was relieved.

A 130-caliber shell fell from the roof of the house where he was hiding and exploded, and he, along with his staff and samurai, was sent flying with the house.

However, the ravages have only just begun.

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New progress in "Memories of the Southern Song Dynasty": the Battle of Yashan, the defeat of the Yuan army, the counterattack of the Song army, and the landing in Fuzhou.