In the first week when the Japanese Navy launched the war, 12 Japanese submarines were sunk by Federal Navy destroyers. Not a single ship in the federal fleet, which had been escorted by a large fleet of destroyers, was harmed by Japanese submarines.
Facing the federal destroyers all equipped with sonar and radar systems, Japan's submarines were like whales encountering whaling ships in the sea. They could not fight or escape.
At this time, the submarine detector installed on the Japanese submarine not only failed to help them, but also became the culprit for the Japanese submarine being discovered by the federal surface escort ship. The principle of this submarine detector developed by the United Kingdom and the United States is basically similar to that of radar
, but the radar emits electromagnetic waves, while the detector emits sound waves. It emits sound waves from the transmitter installed on the head of the submarine in the water.
Objects and ships illuminated by such sound waves will reflect the sound waves according to their different materials. After these emitted waves are received by the receiving antenna on the head of the submarine, the operator can determine the location based on the reflection frequency of the sound waves.
The approximate material, size, location and other information of the object in the sound wave irradiation area, and then determine whether there is a submarine or ship in this area.
Different from passive sonar, which only listens to engine and hull noise, this kind of detector actively emits sound waves to search for targets, so it is also called active sonar. The Federal Navy was equipped with this kind of active sonar equipment as early as the end of the 19th century. Similarly, from which
Since that time, the federal naval scientific research institutions have begun to study the weaknesses and countermeasures of this equipment, and have achieved success.
This kind of active sonar equipment has two serious flaws. One is that its receiving antenna requires a certain area and shape in order to gather and amplify the returning sound waves. Therefore, if a submarine equipped with this kind of receiving antenna does not have enough displacement,
Basically, it is impossible to install other equipment on the head. Even if the displacement reaches more than 1,000 tons, there is not much room to install the torpedo launcher. Therefore, if you want to install this equipment, you must make the submarine as large as possible.
Very big.
Another flaw is more fatal. Since active sonar relies on emitting sound waves to illuminate objects within a certain angle in front. Then this sound wave will not only be received by objects in front, but also by other ships. If the other party has installed special
Acoustic wave acquisition and processing facilities, then this
A submarine that emits sound waves will easily be discovered by the other party. Once the submarine is discovered, it loses its greatest advantage. At this time, the submarine is no longer a submarine killer, but a broken iron jar in the water, only passive.
If you are beaten, even fighting back or escaping is a luxury.
In fact, if the r submarine does not turn on the active sonar, but uses passive sonar to lurk on the route, although it will be discovered by the federal navy's active sonar, the chance of being discovered will be much lower, and it will also cause more trouble for the federal navy.
. However, Japan’s submarines, including Japan’s navy and even military advisers from Britain and the United States, are not aware of this major flaw in active sonar. They just believe that a more advanced submarine must be installed on the federal navy’s ships.
detector.
With enough engineering teams and construction machinery, and logistical materials arriving on schedule, Miyazaki Airport was finally completed one month later. There are two 600-meter-long runways. One can be used as two runways, and each can be used simultaneously.
Take off and land 2 ab-1 bombers, all on board at the same time
11 temporary hangars, 2 semi-underground oil depots, 2 weapons depots (used to store aerial bombs) and a command center with complete living and command and communication equipment were also built near the field, and were built on a nearby hill
A radio transmission tower more than 50 meters high was built.
The completion of the airport means that the attack of the South China Sea Federal Army is about to begin. Now, the Federal Air Force will show their strength to the world for the first time and create a new combat model. In this new model
, the air force will serve as the main strike force on the battlefield, while the army will become a relatively defensive force, and
This new combat model will greatly challenge the previous traditional combat methods. In the new model, the number of troops, the level of training, the number of artillery, the experience of the commander, the solidity of the fortifications, the terrain, and logistics supplies
Many other factors will no longer be the standard for measuring a country's military strength, and these rules have been broken.
This new way of combat is tactical and strategic bombing. From now on, the Air Force will get out of the situation of being the army's junior brother. It will no longer be a subsidiary of the Army, but will become a key force that can determine the success or failure of the battle. The war will also start from the Army, the sea and the sea.
The two-dimensional duel is transformed into a three-dimensional mode among the land, sea and sky.
On November 20, 1927, the entire Japan has entered winter, and the war between the South China Sea Federation and Japan has also entered its fifth month. As the attacking party, the troops of the South China Sea Federation have landed near Miyazaki.
In more than a month, there have only been two major incidents between the two parties.
A large-scale battle, and then a quiet wait. On the one hand, the federal army seems to be preparing something and has been standing still. On the other hand, the Japanese army is unable to launch a larger-scale attack on the federal occupied areas. Both sides seem to have a tacit understanding. If you don't move,
I don't move, I just waste it.
This situation finally changed on the 20th. Early that morning, the sky above Miyazaki Airport suddenly became busy. One after another federal aircraft roared and flew off the runway, and then under the leadership of the pilot aircraft
, gradually formed three large groups, and then flew towards the sea.
There are more than 70 aircraft in these three groups, which is the total number of ab-1 bombers in the Nankai Federation Air Force's active aircraft. Their target for this trip is not the R Honmoto Arsenal in Kitakyushu, nor the Yawata Steel near Kokura.
It is the Japanese capital, Tokyo, 900 kilometers away.
The reason why he chose to build the airport in Miyazaki was for this moment. Liu Fu had no intention of fighting a city-by-city offensive and defensive war with Japan. Nor did he plan to occupy the entire city of Japan, because apart from some of the population, Liu Fu
Apart from resources, there are no resources needed by the South China Sea Federation, and the location is not a strategic location that the Federation insists on occupying.
The development direction Liu Fu designed for the South China Sea Federation is in the south. If a lot of financial and material resources are spent to occupy these islands, it does not mean that the Federation is completely incapable of doing it. It is just that the gain is not worth the loss, and it is useless to itself and the country.
, Liu Fu has never made great efforts to pursue it, and now the main purpose of starting a war with Japan is to completely eliminate
Eliminate possible threats around the Federation, simplify the entire East Asian situation, and no longer give Britain and the United States the opportunity to intervene in East Asia. This is to pave the way and prepare for Australia's future strategy. As for the future of this country, Liu Fu has no specific details.
His plan for this war was to completely cripple the country and completely destroy the foundation of its country and government.
So what is the foundation of Japan's country and government? Liu Fu believes that there is only one, and that is Japan's emperor system and the loyalty education that Japan has received since childhood. The emperor, as a symbol, has become a belief in Japan's heart
, so as long as the emperor is here, r will be
It is not impossible for a united and tenacious country to completely conquer this country, but it will require a high price and a long time. But if they want to destroy this country, Liu Fu feels that all they have to do is destroy their beliefs.
, taking Japan as an example, their belief is their emperor.
As long as this belief is destroyed, Japan's government will no longer be able to use the emperor to unite all Japan, and they will fall into chaos and even internal fighting. At that time, Japan will no longer be a hungry wolf in East Asia.
If you can't take care of your own country, then you still have time to take care of other people's countries.
Moreover, once chaos occurs in Japan, it will not be easy to calm it down. This does not mean that there will not be any great people in Japan to unify the country, but because at that time, the countries around Japan will definitely treat them.
The federal government is a major player in this evil neighbor's manipulation. A divided Japan is definitely more in line with the needs of surrounding countries than a united Japan.
There are not many ways to destroy their emperor, and assassination is not very reliable, because r is originally a single ethnic group, and it is difficult for foreigners to obtain high positions, let alone contact with the emperor who usually stays in the palace. The troops are approaching the city.
, to capture or kill the emperor, theoretically, the South China Sea Federation's army can complete it, but as mentioned before, the price is too high. (To be continued...)
