This is how warships and submarines interact in the sea, know who is heavier than whom.

New Delhi: A big challenge in a war with the enemy at sea is to protect your warship from enemy submarines. Submarine lives very silently inside the sea and it is difficult to detect it until it completes its task. To defeat the enemy, it becomes necessary to locate his/her submarine and get information about its exact position. In such a situation, sonar system comes in handy. We can call sonar system as underwater radar. The sonar system produces sound underwater and that sound web travels through the water and comes back after colliding with any object inside the water. It can come back after hitting a ship, a submarine or even a stone. In such a situation, through the sound web that comes back after colliding, sonar operators tell what is inside the water.

Propeller gap
The propulsion system of each platform (with which it moves) is different. Just like submarine has a diesel engine, submarine’s propeller is small. Similarly, the propeller of a warship is different and the propeller of a merchant ship is bigger. The speed of the propeller also varies. If the submarine is at low speed under water, the sound of the propeller cutting the water will be different. The training of sonar operators is such that they can identify whether it is a warship, merchant ship or something else by the speed of the propeller. There is a system installed in front of the sonar operator, in which the sound of the submarine or ship is displayed after filtering the sound of the sea.

Submarine is a silent killer
The submarine is a silent killer and does not transmit, so it is difficult to detect. Whereas the submarine detects the ship quickly. The submarine itself makes little noise so it can hear the surrounding sounds clearly. In the eye contact between the submarine and the warship, the submarine will hear the sound of the ship before the ship can hear the sound of the submarine. The size of propeller of warship and merchant ship is different. Their identification is also important in the sea, because hundreds of merchant ships from many countries keep moving here and there in the sea all the time. How important the Indian Ocean is to the world, especially from the point of view of trade, can be gauged from the fact that one-third of the world’s major cargo, almost half of the container ships and two-thirds of the ships carrying oil are located here. Pass through.