blood feud

伊171型（白鲨级）潜水舰，原来的水上排水量1475吨，水下排水量2040吨；水上4600马力，水下1350马力；水上17.5节。

The diesel turbines, generators, and batteries originally installed by the little devil, with a total weight of 559 tons, are all dismantled now.

Replace the silent generator set "invented" by Bai Shujie, two electric motors, new batteries and two brushless motors, totaling 668 tons, adding 109 tons in weight.

The key is to find the balance again, otherwise, once the submarine dives, I'm afraid it won't get up.Sophisticated calculations, readjustment of cabins, and re-layout of weapon systems have wasted a lot of time.

After the final test, after adopting the new technology "invented" by Bai Shujie, the fuel consumption of the diesel generator set is an astonishing 194g/kWh, which is more than double the 407g/kWh of the original little devil!

That is to say, two 4800-kilowatt electric motors need 1.86 tons of diesel to run at full load for one hour.After refitting, the Yi-171 can only carry 673 tons of fuel, and can run at full capacity for 360 hours, that is, 15 days.

The engine is running at full load and can provide 9600 kilowatts of power, which is 13000 horsepower, which is an increase of 6000 horsepower compared to the 7000 horsepower of the original little devil's power system!

After 9 nights of trial voyage, the final data was finally produced: Yi-171, the No. 1 ship of the White Shark class, has a maximum surface speed of 36 knots, a range of 12900 nautical miles (24000 kilometers), and a speed of 25 nautical miles (17800 kilometers) at 33000 knots.

水下最大航速24节，持续时间4.5小时，航程108海里（200公里）；水下7节持续时间39小时，航程270海里（500公里）。

Of course, Bai Shujie knew that this would happen in theory, not that the improved submarine would be able to travel 24000 kilometers.Because sailing at sea, it is impossible to run in a straight line.

Also, once the battle starts, it will inevitably be fast and slow, and will keep going around in circles to avoid enemy detection and torpedo pursuit. If you can run half of the straight-line distance, you will be very popular.

At the same time, after fighting, the submarine must "sometimes be on the water and sometimes underwater; sometimes advance and sometimes retreat." This will consume a lot of electricity for the battery.

Overall, Bai Shujie is basically satisfied.There is no absolute safety on the battlefield, no matter how advanced the weapons and equipment are, there will be times when the gutter capsizes.

The American f117 stealth aircraft is known as invincible in the world, but it was shot down by the oldest shoulder-fired rocket on the battlefield in Yugoslavia!

At 36 knots on the surface, the little devil's ordinary destroyers may not be able to catch up, and the battlefield survivability has been greatly improved.

Although the maximum underwater speed can only reach 24 knots, the current torpedoes can only shoot directly, so there is absolutely room for dodge.

The most gratifying thing for the submariners of the submarine brigade is that the noise problem of the submarine has been completely solved.

Although the "silent generator set" cannot be completely silent, the ordinary hum, after passing through the "sound-absorbing tiles" and adsorption materials installed in the isolation cabin, is basically like the feeling of walking on the street.

Another point is that because the final push is done by the electric motor, the vibration of the submarine is reduced to a minimum, the operation is more agile and light, and the maneuverability is more than doubled.

Bai Shujie's only regret is that he "plagiarized" the diesel engine and generator technology of later generations, but the fuel consumption could not meet the original design of 180g/kWh.

It seems that the times are different, and the level of manufacturing technology and materials can never keep up.Advanced design must have the same advanced processing technology, which requires time to settle and accumulate, and there is no way to solve it for the time being.

With the success of the new battery and brushless motor, Bai Shujie finally breathed a sigh of relief, because the biggest problem of "torpedo transformation" was also solved simultaneously, and the remaining work was to reduce the size of the big submarine.The volume is reduced, the power is also reduced, and the weight is naturally reduced by hundreds of times!

Of course, the moment Bai Shujie saw the success of the brushless motor and the new type of storage battery, in fact, the earliest "whimsical" idea was to bring 1500 tons of high-energy explosives into the submarine and crash it into the Japanese archipelago.

After thinking about it, it's useless at all!

The two big firecrackers thrown by the Americans from the sky were both equivalent to 300 million tons of TNT, and the result was nothing more than destroying two cities.To completely destroy the Japanese archipelago, at least 8 atomic bombs with an equivalent of 1000 million tons are needed!

However, this cannot be tested.Because a hydrogen bomb with an equivalent of 1 million tons exploded, the earth will return to the ice age, and human beings have long ceased to exist.

At the beginning of May 1939, a telegram from Wang Xinlan made Bai Shujie feel uneasy.

It turns out that according to the inherent history, the "Far East Munich Agreement" between the little devil and the British should have been on July 1939, 7, but the situation has changed now!

According to Wang Xinlan's telegram, it is speculated that the "British-Japanese Preliminary Agreement", that is, the "Arita-Kreich Agreement", should have been signed in mid-April 1939.

This agreement is the "masterpiece" that British Prime Minister Chamberlain, after betraying Czechoslovakia, continued to sell China's interests!

The contents include: Britain recognized the factual state of Japan's armed aggression against China, and stated: "The Japanese army has no choice but to stop or eliminate any acts and factors that hinder the Japanese army or enemies that are beneficial to the Japanese army"; The British government has no intention of sponsoring any actions by the Japanese army to achieve the above objectives."

Bai Shujie knew that because of his appearance, the little devil's Ministry of Foreign Affairs has accelerated its international steps.Next, the British will "implement an embargo against China" on the front line of Myanmar!

"Order: European offices to evacuate the UK immediately! The three warships already on the high seas must return immediately, and must cross the Bay of Bengal and return to China through the Strait of Malacca before May 1939, 5."

"Request the European office to issue a statement before withdrawing: Feilong International Trade Group severely condemns the British government's obscene behavior! In order to protest the collusion between the British government and the Japanese government and shamelessly betray China's interests, all trade relations with the British government will be terminated immediately!"

"Once the British government unilaterally implements an economic and military blockade in Myanmar, the Bay of Bengal, the Java Sea, and the South China Sea, it will be regarded as a declaration of war against China! British ships and personnel are safe, and all consequences will be borne by the British government."

1939年5月18日，王心兰发挥电报：“平壤号”邮轮、3艘战舰和27艘货轮已经穿过马六甲海峡。

After reading the telegram, Bai Shujie immediately picked up the phone: "Lu Yunlong: How many submarines have been remodeled?"

"Report to the Commander-in-Chief: 3 White Sharks and 2 Shadows have been refitted." Lu Yunlong said on the phone: "There are 2 more Shadows that should be completed in a week. Is there any task?"

"It's like this. The international situation has undergone great changes recently. The British and the little devils are working together." Bai Shujie briefly introduced the situation, and then said: "Our fleet has passed through the Strait of Malacca and has now entered the South China Sea. I am worried about Hong Kong The British are out looking for trouble."

"So I want you to send a formation. On the one hand, it is to conduct actual combat exercises, and on the other hand, it is to prevent accidents. Because of the lack of enough sailors, the three large warships that have returned now are temporarily replaced by other sailors. How about, just use the current five submarines, do you have the confidence to go out?"

"Report to the Commander-in-Chief: Don't say five ships, I will go out even if it is one warship!" Lu Yunlong said firmly: "It takes a thousand days to raise soldiers. We have been raised for two years, and we should go out to see the world. .”

Bai Shujie: "Very well, the 3 White Sharks and 2 Shadows should be filled with fuel immediately to ensure sufficient range. After the new torpedoes are delivered, they will be hoisted immediately, and then wait for the attack order!"

After thinking about it, Bai Shujie picked up the phone again and said, "Qiu Shufen? Are there any freighters under your logistics department?"

"There are five 5-ton freighters and three 5000-ton oil tankers. What are your orders?"

Bai Shujie said with a smile: "Notify the Navigation Bureau, organize these ships, and set off for Cambodia in three days, exchange some sandalwood, coconut, rubber, and abaca with antibiotics, and bring back 3 ships of crude oil by the way."

Qiu Shufen began to complain on the phone: "We don't understand, everyone doesn't like to drink coconut juice, why do you buy coconuts every time? Also, gold silk sandalwood, rosewood, black sandalwood, we have already shipped them back More than 6 cubic meters, and I haven't seen you playing furniture, what are you going to do?"

"Haha, coconut milk is actually a good thing, you should get used to it as soon as possible." Bai Shujie said with a smile: "To tell you the truth, I need coconut shells to make activated carbon, which is used to purify air in submarines and to filter for diving breathing. , The necessities in the tap water evolution device are strategic materials!"

"As for mahogany wood, it is a military supply, and it is in short supply. You also know that our aircraft carrier is coming back, and the upper flight deck is made of high-quality wood. Without a large amount of hard wood reserves, how will we fight in the future? "

"Also, if fighter jets are mass-produced, wood can be used for the rear fuselage. We don't have enough production capacity now. When the craft is proficient, we can produce a large number of fighter jets to support the domestic war of resistance!"

"Now is the time of war, so naturally I don't know how to make furniture. Grain, crude oil, rubber, copper-iron ore, and gold are all the most scarce strategic materials. The Bureau of Navigation and Commerce under your logistics department must seize the opportunity to make as much furniture as possible." Purchase, don’t be afraid.”

1939年5月21日下午两点，5艘潜艇夹在8艘货轮中间离开了椒岛。按照货轮18节的航速，船队刚好在晚上通过济州岛的探查。

By tomorrow morning, we should be able to reach the ocean east of the Zhoushan Islands.Tomorrow night will just enter the Taiwan Strait and pass through in the dark, so as not to cause unnecessary disputes.

Because this is the first combat patrol since the formation of the Flying Dragon Expeditionary Submarine Brigade, Lu Yunlong, the deputy captain of the Submarine Brigade, led the team in person.

He understands that the task this time is not to find trouble, but to avoid accidents as much as possible, and take the fleet home to complete the task.

The more you want nothing to happen, the more things will come to you.The so-called planning is up to man, and heaven is up to success. This is what he is talking about.

Bai Shujie planned well, and Lu Yunlong was cautious enough.However, in order to show its existence and majesty, God always has to come up with some things to increase the memory of human beings, which will not satisfy everyone.

After all, what happens next, let's see the breakdown in the next chapter.