From the waters off Brazil to the Caribbean Sea, the purpose of the submarine is not to the United States, but to be close to the British side, in the United States, it should be easier to achieve results, because the German submarines have never threatened the waters around the United States, so the escort ships are also relatively lax, and even some destroyers that are not equipped with sonar are used, and only after crossing the central axis between the United States and Britain will the main cutting-edge submarines installed with sonar take over.

The Atlantic Ocean is very large, unless you get accurate channel information, it is impossible to determine the exact location of which transport ships, but if you rely on the submarines to search for it, when to find it, I am afraid that most of the submarines will escape. China sent its submarine forces, not for show, but for real military exploits.

In this case, it is impossible to rely only on Germany, and the role played by these submarines is at most similar to Germany's previous wave tactics, and in order to play a decisive role, China has sent a large number of reconnaissance aircraft.

With the support of Yang Yuanzhao, China has really entered the era of airplanes, such a machine that is wider than the airship and much safer than the airship, although it is not as eye-catching as the airship, but it is not famous in the world, which is the former northwest, and now China has been committed to doing it, and the effect seems to be very good.

Reconnaisance planes are not one of China's most outstanding weapons, but they are one of the best weapons that can be used, and under the premise that large-scale bombers and strategic bombers cannot enter actual combat, these reconnaisance planes are the best choice. This weapon. It is possible to search on a large scale, although so. This reconnaissance plane is relatively avant-garde, and all of it is under the premise of high altitude. Even if it is discovered by the Entente, and what can be studied from the middle, China has now become one of the participating countries in the world war, and the secret of the aircraft cannot be kept for long, his biggest advantage is that this matter of time, as long as China has such a large fleet of aircraft, even if it is caught up by the Entente. However, it will take several years to produce such a huge aircraft, and even an industrially powerful industrial country like the United States cannot delay it much, and in this case, China's advantage will be occupied.

The North Atlantic has skipped a huge North Atlantic route, and it is impossible for a reconnaissance aircraft to fly for a long time, fortunately, the flight radius of the Chinese reconnaissance aircraft. More than 1,200 km, that is, 1,200 km from Germany, are within the range of reconnaissance aircraft. Twelve reconnaissance planes, divided into 12 directions, searched this sea area back and forth in a carpet manner. Find the target of the attack, and then use the radio wave method to issue an order to Deng Jieqian.

At this moment. The reconnaissance plane is still in the country, due to secrecy. The reconnaissance plane is almost identical to the traditional aircraft in appearance, and even in order to ensure that it is exactly the same, some of the performance of the reconnaissance plane is sacrificed, so that the reconnaissance plane cannot be compared with the real mainstream aircraft in China.

Basra in the Middle East, the first Chinese land to go deep into the Middle East, into the night, Basra airport became busy, in the past, similar situations have happened, mainly in response to unexpected situations, for example, in the spring of 1915, the Allied troops, the entire Arabian Peninsula, China, at that time, sent special forces, transported here by plane.

For a whole year, this airport was used passively from time to time, but in most cases, it was used to obtain some military supplies, although the Entente countries were suspicious, but they were helpless, there was no evidence, and even they did not even have real evidence for the relationship between Lanfang and China, only simple speculation.

And the relationship between the winter break, everyone knows, the battle in 1916, will be very fierce, the United States in the German wave retreat under the premise of 2 destroyers and a fleet of 20 merchant ships to escort, the fleet is quite dense, from the sonar action to now, it has been more than 3 months, Britain and the United States seized this opportunity, a large number of production of all kinds of merchant ships, the volume of transportation is getting bigger and bigger.

Deng Jieqian's submarine unit gradually approached the predetermined target, and the speed of the reconnaissance plane's flight was far greater than that of the submarine, but to a certain extent, the plane took off only after the submarine gradually approached the target.

The range of this kind of reconnaissance aircraft is about 2,400 kilometers, so from Malacca, with auxiliary fuel tanks, it can fly over Basra, and then rest for a day in Basra, and then continue to fly.

From Basra to Berlin, the distance is a little far, fortunately, on the way, in the location of Hungary, there is an airport as a relay, although this matter, did not inform Austria-Hungary, the group stayed here for a long time, as long as a little refueling, it will continue to fly.

Probably when Deng Jieqian's submarine was still 1,200 nautical miles away from Britain, a Chinese reconnaissance plane landed at a temporary airfield near Berlin, Germany, and was notified to Germany through the Chinese ambassador to Germany.

It's just 72 planes, and the German side doesn't pay much attention to it, especially on the premise that China has not disclosed specific information, it just thinks that China is just a tool to escort these submarines, and it doesn't care too much.

Deng Jieqian breathed a sigh of relief after receiving the news that the reconnaissance plane was in place, the closer he got to the North Sea, the more worried he became, the submarine can search for an extremely limited range without the cooperation of the reconnaissance plane, even if it is a submarine that can go to the sea, it is also a process of luck, this is also the real reason why the sea wolf was not very efficient before, if there is a reconnaissance plane with the cooperation, maybe the sea wolf can achieve three times, or even five times the attack efficiency.

After Deng Jieqian arrived in the North Atlantic, he had been waiting for the signal of the reconnaissance plane, and in view of the vastness of the sea, he wanted to look for certain specific ships on the sea, unless he was lying in ambush on the channel and waiting for the rabbit, and with the observation range of submarines, a distance of more than 7 nautical miles, it would be impossible to monitor the surrounding ships at all, and China would send a large number of submarines out of the country. In order to achieve breakthrough results, the appearance of reconnaissance aircraft is indispensable.

Through the linkage of radio waves. The two sides agreed on a time when Deng Jieqian's fleet arrived at the position of the central axis of the North Atlantic route. The formation of reconnaissance planes located in Germany and resting will immediately set off.

At a speed of about 500 kilometers per hour, the cruising radius of a reconnaissance plane was about 1,200 kilometers, which was enough to cover most of the North Sea. The submarine is divided into 10 groups, a group of 4 main submarines, under the premise of ambush, it is easy to kill those destroyers, once the destroyers are killed, then the remaining merchant ships will become turtles in the urn, and they will not be able to turn up any big waves at all.

At this moment, both Germans. Even the Entente would not have thought that the first wave of submarine attacks would come so quickly and the results would be so strong.

On top of the current North Atlantic route. The actions of the Entente were quite frequent, and because of the appearance of sonar, the Entente used a large-scale operation. Heavy blow to the German submarine at the end of 1915. Such operations have not stopped, and a large number of sonar-mounted destroyers and cruisers have been installed. A non-stop search is underway in the North Sea to ensure the safety of American and British merchant ships.

These large-scale merchant ships, under the protection of destroyers and cruisers, have improved their security a lot, and the German submarines do not dare to approach at all, and in front of the reconnaissance planes, they cannot hide at all; in China's plan, the reconnaissance machine will send the location, speed, and time and other information of each target along the way to the submarine force through a shortened number, and then the submarine force will make a choice according to this.

Deng Jieqian's command headquarters had already received the location of at least 30 merchant fleets, and the reconnaissance planes' reconnaissance results were quite detailed, and the speed of the escort warships, the entire fleet, the number of ships, and even the general ship type were enough for Deng Jieqian to judge how to attack.

31 submarines, divided into 8 formations, they have not been completely separated from each other, the distance between each other is still 50 nautical miles, but each target is quite clear, the huge North Atlantic channel, in fact, can drive merchant ships, at most is a few channels, the width of each channel, that is, about 50-100 nautical miles, so that the target is greatly accurate.

Britain's many merchant fleets have also found planes located in the air, after all, in the unobstructed Atlantic, undisguised aircraft, basically impossible to hide, but almost all merchant ships, did not realize the danger at all, in this era, most of the eyes, airplanes are just the playthings of enthusiasts, although after entering the First World War, the aircraft enthusiasts of the Entente countries were also conscripted into the army, but these planes can only play a very minor role, For example, early warning of an attack by an airship unit, or a simple reconnaissance.

The plane flew in the sky, and there were a series of omissions in the reconnaissance, and in addition to the fact that the speed was a little slower, and there was no means of timely notification, by the time the plane landed and the information was collected, most of the information had already passed through the country.

Because of this, these fleets of the Entente countries did not realize the great role of airplanes at all, and even if they saw planes in the sky, they regarded them as toys for enthusiasts.

This also has a lot to do with China's concealment, it looks similar to the hobbyist's plane, but a slightly larger plane, in fact, in China's fluid mechanics, is completely unqualified, according to the standards of Chinese fluid mechanics experts, this aircraft at least because of the unqualified relationship of fluid mechanics, lost about 30% of the kinetic energy, increased the consumption by 40%, and the attack power is completely absent.

However, many loopholes and shortcomings still did not stop him from serving, because he is very similar to the current aircraft flying in the skies of the whole world.

It is difficult to see the size of the plane flying at an altitude of more than 3,000 meters, as long as it is of the same size, at most it will feel that the flight altitude is a little higher, as for the speed, facing the sky without a reference, or some clouds that do not know the size, even the wisest person cannot determine its flight speed.

I am afraid that this is the fundamental reason why China's aircraft, after appearing in the world's perspective, still has not attracted the attention of the entire European countries, whether it is Britain, the United States, or Germany, they have all included the aircraft in military use, but it is more of an artillery calibration, or a simple reconnaissance mission, and has not yet undertaken the main task.

They would not know that the planes in the air, which looked quite similar to their so-called hobbyist planes, would become their gravediggers, and although these planes, for the sake of secrecy, did not attack them directly, information about them was transmitted by wireless telegraph to every submarine in the North Atlantic at great speed.

72 aircraft, divided into 3 batches, each batch has 24 aircraft, basically can ensure that during the day, for the search of the sea area close to the British section, as for the night, although China has night vision decoration, whether it is an aircraft or a submarine, in the night environment, have the ability to fight, but Deng Jieqian weighed the pros and cons, did not choose to start at night, the reason is very simple, this is a sea area that China is not familiar with, although the survey has been done, and the reconnaissance submarine has come over, and has received help from the German side, However, the danger of the night is still a little too great, and if it is an occasional operation, this is no problem, but if it is really a long-term operation, the non-combat attrition will definitely be very large.

That's enough, an aircraft can maintain a flight for about 5 hours a day, aside from the time when Li tomorrow is not yet bright, and there is also the time to return late at night, after all, the main detection is the sea area west of the United Kingdom, even too close to the British side, can not become the target of attack, too close to the British, it is easy to be attacked by the British home fleet, the performance of the Chinese submarine is excellent, but it does not mean that he is invincible, when the number of destroyers and cruisers on the other side reaches a certain level, even if it is a needle in a haystack, it will have an effect.

In the battle plan, the real submarine attack area was opened 120 nautical miles west of Britain, and this part also became the staggered position of the reconnaissance planes, and after reasonable arrangements, according to a round of five hours, the total time was a little more than 13 hours, under the high-speed reconnaissance of the reconnaissance planes, the first war soon began, and the reconnaissance planes sent 24 targets to the submarine forces at the shortest speed, and these targets were large and small, ranging from eight or nine ships to more than 30 ships, all of which were merchant ships located in the combat area, the conscripted fleet varies from 5 to 2 ships. (To be continued.) )

PS: There is something delayed today, only one chapter sorry!