Chapter 3306 (1/2)
Of course, the process of entering the water is very simple. Our side is still quite far away from the villa, so the personnel distribution is not particularly dense, so we can easily dive into the water.
Although we didn't take ADINA with us this time, it's not that other people don't know how to use sonar. It's just that ADINA doesn't play.
Although the lake is not small, it is not particularly large, so when we entered the underwater, the sonar just launched and found several underwater targets.
”Underwater target detected.” In our mind network, a large area of red marks were painted instantly. These are not fish, because there are not so big fish in this lake.
From the information from sonar feedback, we can see that these targets in the lake can be divided into three types. The first one is a small submarine with a very large signal. Yes, that's right. It's a small submarine. Although I don't know when these submarines got here.
The second kind of feedback signal is slightly smaller than that of the submarine, which is preliminarily judged as a submersible robot. The third signal is smaller and should be frogman.
The feedback signals of the three targets are completely different, so we can easily analyze which targets are what, but the number of these targets is very large, which seems to be frightening.
”Master, we can't use the mirage system in the water. If the other party uses active sonar, we can't hide ourselves.” Xiaochun's words are not to remind me, but to ask if I need to go back to the shore. After all, we can't hide ourselves in the water. Although our power armor is very advanced in technology and equipped with a variety of black technologies, its only function is sonar shielding.
In fact, we didn't expect to install this kind of sonar technology. As we all know, sonar is actually a kind of technology that depends on the object's reflection of sound. The size of the reflected sound wave is mainly related to the volume and material of the target itself. Of course, passive sonar is another technology, which is quite different from active sonar.
Generally speaking, submarines rarely start active sonar underwater. This is mainly because the acoustic generator of active sonar is a super light bulb for passive sonar, which can be found from a long distance. Although the ability of active sonar to search targets is better than passive sonar, once your active sonar is turned on, it means that you have exposed your position first. This is also the reason why submarines of the two countries collided underwater before, because everyone dare not turn on active sonar, and the mute technology of military submarines is relatively good. Therefore, both submarines do not turn on active sonar. It is just like a person holding his breath and stepping lightly in the dark room and moving carefully. Everyone doesn't make any sound. The room is too dark and can't see things It's no surprise to bump into each other.
Because we are dragon people, not submarines, our propulsion sound in the water is much quieter than that of submarines, and it is impossible for passive sonar to detect them. Therefore, we do not have a strong demand for sound absorption materials. What's more, even if it's an active sonar. We are so big. There are many fish in the sea that are bigger than us. Therefore, the acoustic signal reflected by us will not be much stronger. It is difficult for sonar personnel to distinguish us from dolphins and other things, which further reduces the need for sonar camouflage. What's more, our armor only has no special coating for sonar absorption, which doesn't mean there is no such design at all. In fact, the acoustic reflection of the shell material of our power armor is very low. There will be great interference in the ocean due to the wave, which further reduces the possibility of us being detected by active sonar. This makes it almost unnecessary for us to worry about sonar problems in water, because it is difficult to find them.
But the environment here is different.
This is a lake. Although it is not a dead water lake, it is only a lake after all. How much background noise do you think a lake can produce?
It's because it's so quiet in the lake that the sonar facilities will work very well here, especially passive sonar. After all, active sonar has to consider the problem of underwater echo, but passive sonar doesn't have to worry about it at all. Although our underwater sound is not big, in the sea can be completely covered by the ocean background sound, but not in the lake.
Originally, we thought that the other party should prepare a few frogmen under the water, and then prepare a few speedboats on the water, but we didn't expect that the other party even got out submarines and underwater robots. This configuration is obviously a bit out of expectation.
What else can I say in the face of this situation?
”Damn it. I don't have any weapons in the water. It doesn't look so easy.” Said amenis.
I thought about it a little bit. In the middle of the network of minds, ”we're going forward as usual. Since we can't hide it, we'll push it flat.”
”Really?” Jingjing asked in surprise.
I confirmed again, ”yes, flat push.”
”I like the decision.” Lingling said excitedly.
”So straight up?” Ling asked some uncertain questions in the mind network.”Of course not. The technology still needs some. After a while, we'll play our strengths. ”
With the ideas I've conveyed in my mind network, it took you a few seconds to fully understand my arrangements and then move forward.
In fact, we were found immediately after we went into the water. After all, the passive sonar of the other party could clearly hear the sound of any object entering the water. It would be strange if the other party could not hear the sound of a lake. However, just as they were getting closer to us in advance according to the signal, there was a sharp explosion in the water, and all the sonar equipment was destroyed in an instant.
”Damn it!” A Sonarman sitting on a speedboat tugged at his ears as he grinned. His earphone on his head just burst out a sharp whistling sound. His ears are almost deaf now. He can't hear anything if others don't shout.