Great warships

Chapter 70 The Progress of the Catamaran
"I have welded many ships, bloated cargo ships, long Panamax ships, and huge Capesize ships, but I have never welded this type of ship." Cong Ju said to Qin Tao while walking.

"Below it, there are two compensated hulls. In the middle is the raised main hull. There is also a special V-shaped structure under the hull." Cong Ju said.

"This is called a high-speed wave piercing body. The unique structure we designed can reduce the resistance of water and greatly increase the speed of the ship on the one hand. On the other hand, it is to improve the seakeeping performance of the hull. By increasing the frequency of swing To reduce the lateral shaking of the hull." Qin Tao said: "The welding of the two pieces is difficult."

"Yes." Cong Ju said: "My body is relatively thin, so it should be the most convenient for me to get in and weld, but Master Zhao refused. He insisted on doing it himself and asked me to guide it. The inside is too narrow. He could only take off his outer coat and go in wearing a single suit, and he couldn’t wear protective gear, so he took a piece of glass that blocks ultraviolet rays to go in for welding, and every time he came out, his whole body was black.”

Cong Ju was very moved. She was deeply moved by the dedication and dedication of the workers here.

"Uncle Zhao, why are you still working so hard when you are old?" At this time, the two had already walked to the dock, and Qin Tao immediately criticized Zhao Changshui when he saw Zhao Changshui.

"Gong Cong came to be our master. She gave us guidance. We have to do the real welding. Otherwise, we will be blinded when Cong Gong leaves." Zhao Changshui said: "Besides, Cong Gong is a girl, she can't get in and suffer, she is our guest."

Cong Ju shook her head helplessly, of course she knew about the care of these masters.

"By the way, is the welding quality okay?" Qin Tao asked.

"Well, we have checked everything carefully." Cong Ju said, picking up something from the side: "If you are worried, you can look for yourself."

If ships are built for foreign countries, they will definitely send special quality supervision personnel. However, this catamaran passenger ship is a navy project after all, and a leather bag company has been set up to sign the agreement in the name of civilian use. In this way, the navy can't send representatives of the army stationed in the factory, and the quality is completely controlled by the shipyard itself.

In the past, the quality of shipbuilding was supervised by the shipyard itself, so everyone was very comfortable.

Qin Tao looked at the thing. It was a long iron wire. At the end of the iron wire, a small mirror was tied. This small mirror could probe into places where human heads couldn't get in, and then observe the quality of the weld.

All welding standards are in accordance with what Cong Ju said, and there is no slight reduction. If there is a problem, it must be reworked meticulously.

Qin Tao looked at the shaking mirror: "The wisdom of the working people is endless."

"Now, the only thing left is the engine and the water jet. Once these equipments are in place, we can weld the upper deck." Zhao Changshui said, "Taozi, when will these equipments arrive?"

Shipbuilding is different from carbuilding. The car shell can open a special engine hatch, and the engine can be installed at any time.The hull is welded, and the engine used for the ship is relatively large.

Therefore, generally when welding, it is necessary to leave a huge gap on the deck to lift the engine, and then weld the hole after the engine is installed.For such a small boat of several hundred tons, the deck is not welded at all, and the engine and supporting water jet propulsion are installed, and then welded.

If the process is wrong, there will be big troubles. For example, Ah San built the aircraft carrier by himself and launched it into the water several times. One of them was to cut the top deck and plug the engine inside.Of course, only Ah San could do this kind of coquettish operation.

"I'll urge you again, it will probably take a while..." Before Qin Tao finished speaking, on the road in the distance, a Steyr trailer roared and drove over.

After the opening of the country, there is a huge gap in all walks of life, so they are all introducing foreign technology for development.

The same is true for the truck industry. Originally they wanted to introduce Mercedes-Benz, but the Germans were very proud and imposed very harsh conditions. Therefore, the delegation had to go to the small country of Austria and bring back Steyr trucks.

This is the same heavy-duty truck as the old Yellow River, with advanced technology and low fuel consumption. After the introduction, it immediately became the best heavy-duty truck in China.Spreading branches and leaves on the land of the motherland, most of the trucks after decades still use Steyr technology.

This is a full-trailer vehicle. On the main vehicle, a large wooden box is pulled, and the same box is pulled on the hanging bucket at the back.For a full trailer that can be overloaded by hundreds of tons and is known as the train skin on the road, this weight is drizzle.

Qin Tao's heart beat.

These two big boxes must be MTU diesel engines!
"Sister Cong Ju, do you know who is the fastest runner in the world?"

"Heike Drexler."

"What?"

"West German sprint and long jump champion."

"Sister Cong Ju, I didn't expect you to be a sports fan, but it's not her."

"Who is that?"

"Cao Cao."

"What?"

"Say Cao Cao, Cao Cao will be there." Qin Tao said.

Cong Ju still didn't smile, it seemed that he told a bad joke.

The Steyr truck drove directly towards the slipway. At this time, Cong Ju focused all her thoughts on the two MTU engines.

The world's most famous marine diesel engine, even on a cargo ship with hundreds of thousands of tons, is still useful. Although it cannot be used to drive a ship, it can drive a generator set for the ship.

However, this is the first time that this kind of engine is used on a speedboat of several hundred tons.

When the car stopped, Guo Jiamin jumped off the co-pilot.

"Section Chief Guo, your actions are too fast, thank you." Qin Tao said excitedly.

"It happened that a batch of MTU diesel engines arrived. We coordinated with the railway. The railway is very generous. From their order, we allocated two for you." Guo Jiamin said: "You are installing for the first time. Don’t worry about this kind of diesel engine, just read the manual of this diesel engine to avoid installation problems.”

"No, the crane, where is the crane? Get ready to lift the engine! Get in the car, open the box, we'll install the engine today!"

The size of the engine is the largest. If the water jet propulsion cannot be put in place, there is no need to wait. After installing the engine, the deck can be welded.

The wooden box was opened, revealing the sky-blue engine with eight huge cylinders on each side, which looked very spectacular.Two huge turbochargers stand at the front, like two big snails.

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(End of this chapter)