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Seeing Zhong Yi repeatedly observing Zhaobao Mountain and Jinji Mountain on the other side, Gong Weiqian asked: "Mayor, are you worried about coastal defense issues after the development of Xinyinjiang River in the future?"
"Yes." Zhong Yi nodded and said, "It can be foreseen that when the planned Xinyinjiang River develops, it will definitely become a thorn in the side of the entire Japanese army invading China. At that time, the Japanese army will definitely send out the army and navy to invade. For I¡¯m not too worried about the Japanese Army, but for the Japanese Navy, we can only rely on coastal defense.¡±
"Yes." Gong Weiqian said with deep understanding, "If the Japanese navy's warships are allowed to go up the Yinjiang River and reach Sanjiangkou, then the entire Yinjiang City will be within the range of the Japanese naval guns! In this case, our attack on Yinjiang The construction of Jiang is meaningless, because no matter how prosperous the city is, it cannot withstand artillery bombardment.¡±
Zhong Yi said: "So, a lock must be placed on Yinjiang!"
Gong Weiqian asked: "Are Zhaobao Mountain and Jinji Mountain on the other side the key chosen by the mayor?"
"Yes." Zhong Yi nodded and said, "From the mouth of the Yinjiang River to the mouth of the Sanjiang River, the terrain is flat and there is almost no danger to defend. Zhaobao Mountain and Jinji Mountain can be said to be the only two commanding heights. To be honest, this The two hills are really too small and short, not even a hundred meters above sea level, but unfortunately, there is no better option.¡±
Gong Weiqian nodded and said: "This is the only way to choose a taller one among short ones."
After a short pause, Gong Weiqian added: "But fortunately, there is still a chance to make up for it through the design of the fortress. As long as the fortress is built strong enough and the firepower is strong enough, there is still a chance to lock the Yinjiang waterway."
Zhong Yi chuckled and asked, "Secretary-General Gong, do you want to be involved in fortress construction?"
"That's natural." Gong Weiqian said immodestly, "My graduation project is about the design and construction of fortresses."
"Oh?" Zhong Yi was surprised when he heard this. He really didn't expect that Gong Weiqian and his eldest brother-in-law and second uncle-in-law were actually in the same class. Their graduation projects were all about fortress design and construction.
At that moment, Zhong Yi said again: "May I ask which university Secretary-General Gong studied at?"
"Cambridge University." Gong Weiqian replied, with a little pride on his face.
Zhong Yi himself is indifferent to the experience of studying abroad. As a People's Liberation Army member from the 21st century, Zhong Yi does not think that studying at a prestigious foreign university is so great, such as West Point Military Academy. Zhong Yi has never felt that How amazing West Point Military Academy is, and I don¡¯t think West Point Military Academy is better than any other military academy in China.
But for young people in this era, their experience studying abroad, especially their academic qualifications from famous universities like Cambridge and Oxford, is enough to be proud of.
Zhong Yi only felt that it was a coincidence that he was in the same school as his eldest uncle and second uncle.
At that moment, Zhong Yi said again: "You are actually an international student at Cambridge University. Do you know Zhang Yuandong and Zhang Yuanxi?"
"I don't know Zhang Yuandong, but I know Zhang Yuanxi. He is two years ahead of me." Gong Weiqian smiled and said, "The two brothers are typical rich kids. Most of the Chinese students in the UK have been educated by their brothers. When I was studying abroad, I also received favors from my senior students in the Far West."
"That's a coincidence." Zhong Yi laughed and said, "Secretary-General Gong, you may not know yet, but my fianc¨¦e happens to be the fifth young lady of the Zhang family, the younger sisters of Zhang Yuandong and Zhang Yuanxi."
"Really?" Gong Weiqian was stunned when he heard this, "What a coincidence."
Zhong Yi could feel that Gong Weiqian was getting closer to him.
At that moment, Zhong Yi said again: "Secretary-General Gong, since you are a top student at Cambridge University, you studied architecture, and your graduation project is fortress construction, can you tell me about Zhaobaoshan and Jinjishan Fortress? How should it be built so that it can withstand the Japanese attack?"
Gong Weiqian nodded and said: "The Zhaobaoshan and Jinjishan fortresses are mainly defended by the Japanese aviation bombing, because the large-tonnage warships of the Japanese Navy cannot actually enter the Yinjiang River. Due to the navigation conditions, the Japanese Navy's battleships cannot enter the Yinjiang River. You know, not even large-tonnage cruisers."
Zhong Yi nodded subconsciously. The navigation capacity of the Yinjiang River is indeed limited. A sea-going ship of 2,000 tons is fine. A sea-going ship of more than 3,000 tons is extremely difficult. If it exceeds 5,000 tons, it can only be navigable during the rainy season.
Most of the cruisers of the Japanese Navy are more than 5,000 tons.
Gong Weiqian continued: "So, the Japanese navy's naval guns are not actually the main threat. The main threat comes from the bombing of the Japanese army and even naval aviation. Japan's largest aerial bomb should be a thousand-pound class, so Zhaobaoshan andThe design standards of Jinjishan Fortress must be able to withstand at least two thousand pounds of aerial bombs! "
"Not enough!" Zhong Yi said quietly, "I'm afraid the standard of two thousand pounds is not enough."
When he said this, Zhong Yi was thinking of the Guishan Fortress and Snake Mountain Fortress in Wuhan.
The design standards of Guishan Fortress and Snake Mountain Fortress were also two thousand pounds, but in the end they were destroyed by the crazy old devil, Higashikata Niguhiko.
"The standard of two thousand pounds should be enough." Gong Weiqian said, "Because Japan's largest bomber can only carry one thousand-pound aerial bomb."
Zhong Yi said: "Have you never thought that the Japanese army might use less fuel, fill the cabin with explosives, and then launch a suicide bombing of the fortress with the plane and aerial bombs?"
"This" Gong Weiqian suddenly took a breath of cold air.
"So, two thousand pounds is really not enough." Zhong Yi said.
"Then we can only strengthen it by improving the top structure of the fortress." Gong Weiqian said, "Because if we just thicken the top layer of the fortress, not to mention the high cost, it will also be very difficult for our officers and soldiers hiding inside the fortress. If you withstand the impact of the explosion shock wave, your internal organs will eventually be shattered alive!"
Zhong Yi said: "This is what I am most worried about."
When the Guishan Fortress and Snake Mountain Fortress were destroyed, not many officers and soldiers were actually killed. The vast majority of officers and soldiers were killed by the violent shock wave generated by the explosion.
Gong Weiqian pondered: "I do have some ideas about strengthening the top of the fortress, but I don't know if it is effective without practical verification."
Then, Gong Weiqian told everything about his idea.
After listening, Zhong Yi just wanted to say one thing to Gong Weiqian, what a genius idea!
Gong Weiqian's idea is actually to add one or more protective layers similar to tank reactive armor to the top layer that is most vulnerable to aerial bomb attacks. The bombing of small-tonnage aerial bombs will not trigger such a protective layer, but if it is hit by an When bombed by an aerial bomb of more than 1,000 pounds, the protective layer will passively detonate outward. (Remember the website address: www.hlnovel.com