Fearing the bombing of Chinese planes, after many tests, the Japanese army felt that it had mastered the control range of the Chinese Air Force, and the limit would not exceed 700 kilometers.
The reason for being able to bomb Lushun to Shanghai was because of the addition of fuel tanks.
And the Chinese Air Force has basically no air battles.
That is, this may be its ultimate flight range.
The Japanese navy and army are now equipped with a flexible anti-aircraft gun, which has greatly improved the success rate of locking on air targets, allowing the Chinese air force to dodge and reduce the air force's protection range by nearly half, that is, no more than 300 kilometers.
Therefore, although the Japanese ships still could not enter the Bohai Sea, the Japanese navy, which had recovered some vitality, insisted on occupying half of the Yellow Sea.
The Chinese Navy is undoubtedly a shortcoming, and the range of defense of high-speed patrol boats will not exceed 100 nautical miles.
The Japanese thought that if China had not systematically used fishing boats and the like as cover, it would surround the submarine and carry out a surprise attack.
China does not have the ability to deal with submarines.
So the Japanese submarines were almost unscrupulous.
Japan believes that the submarines that China bought from the Germans have been hiding somewhere and are not daring to go to sea, because Japan already has more than thirty submarines on the periphery.
But recently there have been some changes, and three ships without chimneys, without main guns, without tall bridges, and low have appeared in Lianyungang.
This kind of warship clearly highlights the characteristics of the Chinese who are good at sneak attacks, which are fast and not easy to detect.
Two of them are capable of taking off helicopters, which are still very advanced helicopters.
The submarine also left the port under the escort of three destroyers.
China was the first to apply jet engines to airplanes, and now it is the first to successfully develop helicopters.
And put into use.
Although the United Kingdom, Germany and the United States are developing helicopters and have prototypes.
But none of them have been put into use.
Japanese submarines dive too shallowly.
The size is huge, and it is almost impossible to hide under the search of the helicopter.
So submarine activity began to converge.
But Japan felt that the Yellow Sea had to hold at least the center line, so it often confronted three Chinese warships near the center line, using aircraft from aircraft carriers to drive away Chinese helicopters that had only two false days.
In general, when the Japanese aircraft carriers are dispatched.
The Chinese fleet began to retreat.
The Yellow Sea, the Lu-class submarine is the main force of Japanese submarines.
The Lu 24 submarine is a relatively high-level submarine, and it is accompanied by Yi 51.
Japan pursued the strategy of artillery and giant ships, and did not invest much energy in submarines.
Submarines mainly perform reconnaissance and transport missions.
For example, the current Yi Fifty-One is clearly floating on the water, with the Japanese flag still hanging on it, and Lu Twenty-four is still about 50 meters underwater.
The international community has already guessed that China may have succeeded in developing radar, but it is not only Japan.
Even the United States and Britain did not put radars on planes.
That's too big.
Japan is also far from achieving successful radar stations on land, although considering that Chinese planes may sneak attack Japan and strengthen radar development, it is almost impossible to start.
For sonar, it is far from being used, because it is useless, and manual calculations are too slow.
Japan has never made such a thing at all.
Japanese submarines have a single function.
The engine was a diesel engine, but the noise made the sonar soldiers on the Xia-class submarine buzz in their ears.
You can also hear the collision of the torpedo canisters hanging outside the submarine.
The two submarines were actually carrying out a transport mission to North Korea.
In fact, along with the destroyer undergoing sea trials of the newest merchant-class submarine.
It is mainly used for experiments on diving depth and deep-water diving.
At the same time, the seabed measured by the Xia-class submarine was retested.
What the Japanese did not know was that the Xia-class submarines had already received orders to attack Japanese underwater and surface ships.
The first to be attacked was Lu XXIV, which was cruising with batteries, relatively quietly, and the torpedo hit its tail.
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The submariners on Lu Twenty-four actually hadn't realized that they had been attacked, they thought that the engine had failed, and after discovering the water leakage, they closed the hatch and prepared to float.
But Yi Fifty-One could see it clearly, and the huge column of water that exploded rose into the sky.
It's not an engine failure or anything, it's a torpedo.
But it was Yi Fifty-One who was the first to be silent.
It turned out that the first torpedo only exploded at the tail rotor of Lu Twenty-four, the tail rotor stopped, and the second torpedo went straight to Yi Fifty-One's engine, which was too noisy.
The torpedo crew of the Xia-class submarine found that the torpedo did not cause fatal damage to Lu 24, and some fired a supplementary one.
And this torpedo also ended up going towards Yi 51.
The I-51, who was used as a transport ship, withstood two torpedoes.
Lu Twenty-four, who had already paid the surface of the water, watched as Yi Fifty-One broke into two and sank.
It didn't wait long, though.
It made a big mistake, and the captain ordered the engine to be started and escape with the spare tail rotor.
This time only one torpedo was used.
The explosion was so large that the water in the engine compartment could not be stopped.
But he saw no enemy.
The hull of the ship was sinking, and some Japanese merchant ships rushed over and began to rescue these submariners who could not save their submarines.
In just over 10 days, the Japanese submarines in the Yellow Sea lost most of them and withdrew one after another.
The Japanese already knew that the Chinese had a more advanced submarine hidden in the Yellow Sea.
And in the East China Sea, Chinese warships always hid under the wings of the air force and did not engage the Japanese fleet.
When the planes of the 2nd Air Division began to take off from Weihai to intercept the battleships searching for Chinese submarines, the Japanese knew that the Yellow Sea would not be able to enter.
In January 1935, the submarine, which had been under the escort of destroyers, disappeared.
It seems that in order to take revenge on the Japanese fleet that had been following and reconnoitring for a month, the squadron actually attacked the Japanese fleet at night by virtue of the advantages of low hull and fast speed.
The battleship Nagato, with a displacement of nearly 40,000 tons, was hit by more than a dozen torpedoes, and although it was not sunk at the time, it was then sunk by wind and waves on the way back to Japan.
And the Chinese warships fled immediately after the sneak attack was successful.
Of the six seaplane planes that were chasing, two were shot down by helicopters, and four were shot down by anti-aircraft missiles.
This kind of missile is aimed at the engine, and at night, the engine of the Japanese aircraft is simply a live target.
And another small, faster destroyer in pursuit, was torpedoed and sunk.
Several other ships were damaged by mines.
The huge Japanese naval fleet watched as the Chinese fleet and planes disappeared into the sea.
From January to February 1935, more than a dozen battleships and cruisers, including the Hyuga, Kongo, and Mikazuki, were attacked, seriously damaged, or sunk.
The locations of the attacks have been as far as Ryoma, Nagasaki, and Osumi Island.
It's all bullied to the doorstep of Japan.
The Japanese sent fleets to encircle and suppress the Chinese fleet scattered everywhere many times, but they were all discovered by helicopters and broke out of the ambush circle.
It didn't stop until the Spring Festival.
The commander of the Japanese Combined Fleet, Takahashi Miyoshi, had to take the blame and resign.
The Japanese government protested directly to the Wuhan government.
Wu Hao said that it was the Japanese fleet that kept an eye on the Chinese ships conducting sea trials all day long, and the Chinese navy was forced to retaliate for safety.
The Chinese Navy has only three warships without main guns.
And the Japanese had at least twenty or more battleships, cruisers and destroyers blocking the coast of China, seriously threatening freedom of navigation.
Immediate withdrawal from the East China Sea and the waters south of Osumi Island should be made.
Osumi Island is an archipelago of the Ryukyus, which is under the jurisdiction of the Ryukyu Autonomous Government and has been the territory of China since ancient times.
Wu Hao said righteously, and Zhang Chun laughed when he listened to Chen Zimei's report when he was washing Niuniu's diapers.
Lishi, who was feeding Niu Niu, said unhappily, "What are you laughing at, aren't you?"
” Zhang Chun said: "Yes, exactly. ” On February 19, 1935, Wu Peifu, who had finished the Lantern Festival, never woke up again, and he walked peacefully.
Wu Peifu has no biological children, only Wu Daoshi and his wife, who were passed on to him by his younger brother, are waiting by his side, and they already have two grandchildren.
Wu Daoshi was forcibly taken from Xinmin Military Academy by Wu Peifu to Zhengzhou University to study water conservancy, saying that he would inherit his wish to build water conservancy for the country.
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Wu Peifu's will was to be cremated and his ashes scattered into the Yellow River.
However, Zhang Chun left some of the ashes and scattered them on the Yunlong River, because a monument was being built in the square by the river.
Next to the monument is a large mourning hall.
The dark marble is engraved with the names of all the martyrs who have died since Yuan Dingguo, as well as small biographies.
Wu Peifu is already more than 6,000.
And it has also become the place where every Xinmin College student enters the school and holds a graduation ceremony.
Not far away is the Xinmin Museum of Culture and History, where in addition to the biography of each martyr, there are many martyrs' manuscripts.
Especially for students who graduated from Xinmin University, they have to write essays since middle school, so there are more or less some articles in the world.
Most of these people died in the crackdown on bandits.
In fact, not many people died in regular combat, and some died in accidents in scientific experiments.
Cremation and returning ashes to the earth and rivers began with Yuan Dingguo, and then became a practice as more and more people followed suit.
The Yunlong River was also named the Yingling River because there were so many ashes sprinkled in it that no one took water and swam in it, which would be seen as disrespectful to the hero.
It is also regarded as a symbol of the spirit of the Chinese people.