Chapter 84 Acrobatics at Sea

The power of 6,800 horsepower is transmitted to the reducer and then reaches the water jet propeller through two output shafts. Rolling river water spurted out from behind, and the catamaran began to accelerate.

On the berth, countless people looked around, watching the catamaran passenger ship continue to speed up.

“My dear, it’s faster than the anti-smuggling speedboat we built last time!”

“Of course, how powerful is the anti-smuggling speedboat? How powerful is this catamaran passenger ship?”

“Look, it’s starting to turn! The hull doesn’t even tilt!”

If it were a previous monohull ship, it would definitely tilt when turning at high speed on the sea. If it was severe, it would capsize. However, because of the wide hull of a catamaran, there is no obvious tilt at all. .

 “Yes, it’s really stable!”

While everyone was talking, Qin Tao drove the catamaran and continued to race wildly. The data on the speedometer also kept beating.

 Verse thirty, verse forty, verse forty-five!

The front suddenly became clear. The catamaran passenger ship driven by Qin Tao had left the river and arrived at the estuary.

 The water here is more open and testing is more convenient.

The two catamaran hulls were plunged underwater, with the central structure exposed and four jets of water jetting out from the tail, which looked very spectacular.

 Verse forty-six, verse forty-seven, verse forty-eight!

Qin Tao's heartbeat is gradually speeding up. He has promised that this catamaran can run to fifty knots. Moreover, this is also related to the subsequent construction of missile boats, and there must be no problems.

 Speed ​​up, then speed up!

 Verse 49, verse 50!

 When he saw this value, Qin Tao finally felt relieved. The design speed had been reached!

 Can we continue to speed up?

 There should still be potential.

The two engines roared inside the two bodies. Since there was no sound insulation, the noise could be clearly transmitted to the upper level. However, it sounded like beautiful music to Qin Tao's ears.

 “Brother, why do you use knots as the unit of speed?” A voice came from behind.

Of course Nie Shiyu wanted to be with Qin Tao, so when she saw Qin Tao running up to test, Nie Shiyu followed suit.

 A ship of this level can be operated by one person as long as the power system does not malfunction. After Qin Tao came up, Nie Shiyu came up. Cong Ju was very curious and followed him up. Now, the three of them were standing on the cockpit, watching the blue sea in front of them retreating rapidly. Cong Ju was also very excited. .

This is definitely the first time in the history of domestic shipbuilding that a ship of this speed can reach 50 knots!

Cong Ju is a rare and strange person. She didn't know that the anti-smuggling speedboats built by Qin Tao for the customs can also run to fifty knots.

"The knot was invented in the 16th century during the age of navigation. At that time, there were no instruments for measuring speed, so a sailor came up with a clever trick. He threw the rope into the water and looked at the length of the rope pulled out over a period of time. The ship is speeding up." Qin Tao gave Nie Shiyu some science knowledge: "However, at that time, because the timekeeper used quicksand and the like, it was not very accurate, so the rope had to be very long. In order to facilitate the measurement of the length of the rope, knots were made on it. , In this way, the ancient operation was passed down, and the navy used knots as units."

"Taozi, you know so much." Cong Ju sighed with emotion. Although she had been working in shipbuilding for more than ten years, she really didn't know how the unit came to be.

“You’ll know when you go to college.” Qin Tao continued to fool Cong Ju.

“Wow, fifty-five!” Nie Shiyu looked at the instrument and exclaimed excitedly.

"It seems that the design speed has been reached." Qin Tao said: "We can return to the voyage. You have all stabilized."

 The current catamaran passenger ship is still a shell. Once the interior decoration is completed, it will have to gain weight. In addition, it will be even heavier when it is filled with oil and fresh water.

So, now it can reach fifty-five knots without a load, and it can reach fifty knots after being loaded with cargo.

 Returning!

Qin Tao skillfully turned the steering wheel in his hand, and the four water nozzles at the tail deflected to one side, pushing the passenger ship to turn.

Since it uses a water jet propeller, its steering does not require the use of a special rudder surface. As long as the direction of the water jet is changed, the ship can be turned. It is simply the same as vector propulsion in the missile field.

The hull did not tilt much, but Nie Shiyu and Cong Ju still felt that under the influence of the huge centrifugal force, their bodies were thrown out. Thanks to Qin Tao for reminding them, otherwise they would have collided with the cabin on one side. on the wall.

 The waves splashed behind, and a beautiful arc was drawn on the sea.

“This catamaran is really good. The stability at this speed is really good.” Cong Ju said to Qin Tao while trying to keep her body steady.

“Of course.” Qin Tao said: “Moreover, using water jet propellers, it can also perform special actions, such as spinning in circles!”

As he said that, Qin Tao pushed the engine on one side to the idle state, while the engine on the other side was still running at full power, and the steering wheel was killed. So, under Qin Tao's operation, the catamaran passenger liner circled on the sea. , and the radius is still shrinking.

The waves rise on the sea, forming a shrinking arc, just like the trajectory of a moth flying into a flame, one circle, two circles, three circles. When it reaches the third circle, the catamaran passenger ship is almost circling. Rotate around the center of the hull as the center of the circle!

 The bow and stern of the ship drew waves, forming a beautiful closed circle, just like a dancer performing on the ice.

 “How is this possible?” Cong Ju’s face was full of surprise.

 Ordinary ships use rudders to control steering movements. They can only be operated while moving forward. Moreover, the greater the speed of the ship, the higher the efficiency of the rudder surface will be.

It is absolutely impossible to turn in place like this now. When the ship turns, it will lose speed and the efficiency of the steering surface will be reduced. Even if it can turn in a circle, usually after two turns, the ship will lose energy. Unless it is pushed by a tugboat from outside!

Now, this catamaran has broken this shackles and is spinning in circles without losing speed!

“This is the wonderful use of water jet propulsion.” Qin Tao said: “With water jet propulsion and a catamaran, you can play gyroscopes on the sea! Okay, now let’s change it!”

  Qin Tao restored the power on one side, then released the rudder, and the catamaran sailed towards the mouth of the river and returned to the shipyard.

Qin Tao didn't know that at this moment, on the coastal road, a Cherokee spray-painted with the words "Customs Anti-Smuggling" was parked next to the road. Two people stood there, holding binoculars in their hands, looking at the ship. I watched the catamaran performing acrobatics on the sea for a long time.

 (End of this chapter)