Although Abbas is not highly educated, he also knows that fighter jets can fire missiles, and destroyers can also fire missiles and torpedoes. But now they are all doing nothing, which is too annoying. To kill the giant shark, I am afraid the only way is

The missiles and torpedoes were fired. But the missiles were delayed. Abbas was very angry. So he broke into the cockpit and asked the captain for an explanation.

"Why don't you shoot missiles to kill the giant shark?" Abbas said loudly.

Wahid raised his head and glanced at Abbas, became angry and shouted, "Who let him in? Get him out."

The two Chinese characters dragged Abbas out. However, Abbas was very strong and knocked the two men down at once.

"Tell me why you didn't shoot the missile?"

Captain Wahid had to open his eyes to look at this reckless man. He had seen such a reckless man before, but he had never seen such a reckless man.

"You idiot, the shark is so close to the cruise ship. If it fires missiles, our cruise ship will be sunk." Wahid.

"What about luring the shark away?" Abbas.

"Has your head been eaten by a dog? If the shark runs away, it will dive into the water and shoot a fart missile, and it won't be able to hit it even if it wants to." Waheed.

"Don't lie to me. I saw on TV that missiles have eyes. They can chase things all over the ground and hit them even if they get into holes or water." Abbas.

"My silly brother, that's called tracking. An object must have a signal to be tracked! But the shark is in the water, how can you track it?" Wahid.

"Then how can we track the shark?" Abbas, if you don't understand, ask, and ask to the end.

Wahid was too lazy to say anything, but he still said: "You can put the sonar into the shark's belly and then shoot the torpedo."

"You give me a sonar, I will lure the shark away, then put the sonar into the shark's belly, and you will shoot the torpedo." Abbas looked solemn, not like he was joking.

Captain Wahid had the ability to observe people's emotions and guessed that there must be a story in it.

"Why do you insist on putting the giant shark to death?"

"More than twenty years ago, my father and grandfather were killed by this shark. I must take revenge." Abbas gasped, "So I must take revenge and kill the giant shark."

.”

"Are you sure you want to do this? This is very dangerous and you may lose your life." Captain Wahid.

"I have died once just now. This life was taken back. If the Supreme God Allah wants to take it back, just take it back!" Abbas.

Captain Wahid looked solemn, thinking that if things continued like this, the cruise ship would definitely be hit and sunk by a shark. After thinking about it, Captain Wahid agreed to Abbas's request.

"Can you tell me your name?" Wahid.

"Abbas, sailor of the Poseidon." Abbas.

"Abbas, you are a qualified sailor, I wish you a triumphant return." Wahid.

…

There are quite a few sonar detectors on the cruise ship. The technology is so advanced that they are all mini-sized. Captain Wahid found Abbas a wireless sonar fish finder, which is a very commonly used equipment in scientific research.

Before Abbas diverted the giant shark, Captain Waheed first spoke to the captain of the destroyer and told him the current situation of the cruise ship, and also mentioned tracking sonar and firing torpedoes.

The technology of today's torpedoes is truly incredible. Not only can they move in a straight path, they can even move in an "S" shape. It's like having a pair of electronic eyes. It can pinpoint a target and never let go. As long as the thruster provides

The horsepower is enough.

The torpedo is not a human being, so how can it identify its target?

This is when sonar tracking comes on stage. Sonar emits sound waves, which are different from electromagnetic waves and has its unique advantages. In water, the principle of the transmitter is essentially different.

Electromagnetic waves attenuate too quickly in water, and the shorter the wavelength, the greater the loss. Even if high-power low-frequency electromagnetic waves are used, they can only propagate for tens of meters. Sound waves are different. They propagate in water and attenuate much less, and explode in deep-sea tunnels.

A bomb of several kilograms can still receive signals 20,000 kilometers away, and low-frequency sound waves can penetrate thousands of meters of strata on the seabed and obtain information in the strata. For measurement and observation in water, there is no method better than sound waves for measurement and observation in water.

more effective means.

Generally, if fish experts want to study the activity of fish, such as sharks and whales, they only need to install a sonar tracker on it. Even if it goes to the Antarctic, it can find its whereabouts.

Sonar technology can be divided into active sonar and passive sonar. Active sonar can emit sound waves and then collect and calculate the echoes. It is suitable for detecting icebergs, reefs, sunken ships, sea depths, fish schools, mines and hidden submarines with their engines turned off.

.Passive sonar technology passively receives the radiated noise generated by targets in the water and the signals emitted by underwater acoustic equipment to determine the target's orientation.

Tracking sonar torpedoes use passive sonar technology to receive signals, then track the signals, determine the location, and then pursue them fiercely, automatically avoiding obstructions.

Once the idea was made, it was about to be implemented. Captain Wahid adjusted the mini sonar to a specific radio frequency, and then handed it over to Abbas. Captain Wahid also made an agreement with Captain Saraha to first send the torpedo to

As long as Abbas lures the shark away, he will shoot.

The giant shark slammed into the side of the cruise ship, and it didn't hurt at all. One side of the ship wall has been smashed to pieces, and the torn iron sheet is particularly eye-catching. Fortunately, the bottom of the cruise ship has an anti-sinking compartment.

It doesn't matter if water enters one, two or three compartments, as long as the sealing door is closed.

Abbas went down the ramp on the other side, and there happened to be a motorboat parked below.

The sonar system has been turned on, and the destroyer's torpedoes are already in place. They are waiting for Abbas to lure the giant shark away and then put the sonar on the shark.

It's not that simple to put sonar on a shark. Abbas's idea is to throw the sonar into the giant shark's mouth.

The giant shark's mouth is so big, it shouldn't be difficult to throw it in. What's difficult is how to escape after the sonar is thrown in.

Although Abbas is not afraid of death, he still has a wife and children at home. His mother is over seventy years old, and they all need to be taken care of by himself. If he goes like this, the well-off life at home will definitely return to before liberation.

Abbas jumped into the water first, swam a few meters toward the motorboat, and flipped over.

There was a roar and the motorboat ran away. Abbas, a tough man, walked around to the other side of the cruise ship and screamed a hundred meters away from the giant shark.

Erdan, who was watching from a distance, was stunned for a moment, wondering if Abbas had a trick on his head and just escaped from the shark's mouth, so why did he run down again? This is not the way to die, right?
Chapter completed!