Chapter 1522: Twins go to sea

When they first went to sea, the "Twins" sisters were very excited. After all, it was a brand new experience for them, but soon the two became overwhelmed.
Because of seasickness.
Why do you get seasick? Is it because the two young and light girls are in poor health?
No, no, this is really not to blame the sisters, the fault is actually in this ship.
The old readers must have guessed the origin of these two boats by now-it was the last model of the strange boat designed by Zhu Yingfu that Tan Er went to call "Born for a collision," and Uncle Zhu was figuring it out. After Tan Er’s design intent, he did not shirk anymore, and he took over the development tasks of these two ships very quickly, because his research institute happened to be executing a major naval model development project at that time, and Tan Er The ship to be built has similar requirements for the hull and other aspects of the ship in that project, and it happens to be able to borrow a large part of the design.
The veterans who are familiar with the development history of the China Navy’s equipment must have guessed again. At that time, the project Zhu Yingfu was working on was the "052" guided missile destroyer.
The Type 052 guided missile destroyer has a length of 144 meters, a side width of 15.6 meters, and an astonishing aspect ratio of 9.23. According to the principles of fluid mechanics, the ship’s aspect ratio determines the ship’s speed and is the second most important thing besides the power system. Factor, the larger the value, the faster the ship can run under the same power. Obviously, the design of the 052 guided missile destroyer with such a large aspect ratio must have a considerable speed.
that's the truth.
Zhu Yingfu was very lazy at the time. Except for the weird bow and some special equipment, the basic structure and cabin layout of the rest of the two ships almost completely copied 052, but after the final construction , The basic performance data is still somewhat different from that of the 052-the standard row of "Twins" is only 3900 tons, slightly lighter than the 052, and the top speed is higher than that of the 052, reaching an astonishing 35 knots!
Of course, there are certain reasons why this data can be soared. In summary, there are nothing more than two: small displacement and sufficient horsepower.
Let me talk about the small displacement.
The Type 052 guided missile destroyer was once nicknamed the "Allied Forces of the Eight Nations" by military fans and friends. Its power system, radar, missile, artillery, torpedo and other sub-systems were introduced from the United States, Hans, Gaul, Yili, Raksha, etc. In many countries, these weapon systems are naturally impossible to install on the "Twins", which are "cruise ships." Naturally, there is no need to install fire control radars for these weapons. Other essential navigation radars, etc. At the request of Tan Zhenhua, all the equipment was made domestically. Well, Tan Er, who is also a radar electronics expert, also specifically asked 4014 to develop some strange electronic equipment to be installed on this ship.
Without a lot of equipment installed, this ship is naturally much lighter.
Let's talk about horsepower.
The 052's power system uses CODOG, aka "combined diesel-fueled power". Among them, two MTU12V1163TB83 diesel engines imported from Hans are used for medium and low speed cruises, and the main engines for high speed are two famous ones. The metric LM2500 gas turbine is a product of the "honeymoon period" between China and the West in the 1980s. China has introduced four LM2500s from the United States. After use, it was shocking. It is with these four engines that China finally finally It was decided to develop the 052 guided missile destroyer, and the first two "052" ships were built, with hull numbers 112 and 113-but unfortunately, as soon as the 1990s entered, the door to cooperation was closed. When you get this type of gas turbine, don't even think about it.
In Tan Zhenhua’s previous life, after the 112 and 113 ships were launched in the early 1990s, the Huaxia Navy was stuck in the neck by the power system, and was unable to build similar warships for a long time. It was not until 2002, more than ten years later. Finally ushered in the launch of the first ship of "052B", ship No. 168. The gas turbine installed on the ship was a DA/DN80 gas turbine provided by the "Dawn Design Bureau" of Wukelan.
By the way, I would like to mention a line in the industry: DA/DN80 gas turbine, later renamed UGT-25000, given the nickname "Black Dog Head"...
Since then, China has broken through the joint obstruction of the United States and Rakshasa, and has introduced a full set of UGT-25000 patents and technology licenses, and developed nationally produced GT25000 and QC280 on it. This is finally resolved. The core issue of ship power is also the "052D" and "055" dumplings, but this will be many years later.
Of course, in this time and space, taking advantage of the good timing of the political alternation of Wu Kelan, the unstable situation and the economic collapse, and Raksha’s overwhelming self-care, Tan Er ruthlessly waved the behind-the-scenes hand, using the cheque book as a tool for the crime, to steal countless previous The people of Soviet Russia and Uklan have accumulated many years of technology and wealth, and UGT-25000 of "Dawn Design Bureau" is naturally one of them.
But unfortunately, although all the technical data of this type of gas turbine have been obtained, and all legal authorizations have been obtained, the UGT-25000 gas turbine itself is an unfinished work. In the agreement reached, "Dawn Design Bureau" In-depth cooperation will be carried out with Huaxia to jointly promote the design and finalization of this type of engine. The main research and development participating units of Huaxia include the Gas Turbine Institute of Aviation Systems, the 6703 Institute of West Air Development and Marine Systems, and Habing Steam Turbine Factory. .
Therefore, there is no chance to use this type of gas turbine on the "Twins" two ships, and only four LM2500s in stock have been installed on the destroyers 112 and 113, and Tan Er naturally cannot get involved, so these two Where did the main engine on this ship come from?
Well, don't forget, the second young master also has an old friend named Hook.
Tan Er placed an order to build these two ships. It was in 1988. The "Honeymoon" also left the last short tail. So after Zhu Yingfu agreed to build these two ships and raised the need to solve the problem of the power core , The second young master immediately called Hooker and said that he would buy some of the latest models of "Olympus".
As we all know, gas turbines and aero-engines have the same roots. As one of the world’s aero-engine giants, Rolls-Royce’s gas turbine technology is naturally very strong. At this time, the main product of the company is the "Olympus" series. In fact, Rolls-Royce's "Olympus" is slightly ahead of the US LM2500 in technology, but it is slightly inferior in terms of service life and cost-who makes Midi the leader of Bluestar? The LM2500 produced by his family was selected as the core power system of the warship by a large group of younger brothers. Naturally, the output is large; the output is large, the cost naturally has an advantage, and it is more competitive in the market. Rolls-Royce’s "Olympus" is In addition to the domestic equipment, they can only pick up some leftovers from the market to feed themselves.
So when Tan Zhenhua asked Hook to buy a few "Olympus" urgently, he agreed without saying a word-Master Lu had a soul torture, "The monk can touch it, I can't touch it?" Na Mi Emperor’s LM2500 is sold, why can’t our
Olympus
be sold? Moreover, Tan Er did not attach any conditions this time. He neither required the transfer of technology, but was also willing to sign a letter of guarantee that these engines would never be used for military purposes. Except for the urgent delivery date, all other things were wrong. No, what else are you talking about, sell, hurry up!
The "Olympus TM3B" purchased by Tan Er has a rated power of 28,000 horsepower, which is more than the rated power of the LM2500 equipped on the 052 with a rated power of 25,000 horsepower. A boat with two engines provides a full power of 6000 horsepower. Then naturally these two boats can run faster.
In addition, the cruise engines installed on these two "Twins" are not from MTU, but from MAN authorized, produced by Hanyang Power Group and manufactured by Yichang Chuanchai. This is also in line with Tan Er's "Fatty water does not flow out of the field." "The consistent principle.
Explaining so much, in fact, to illustrate one thing: the two "Twins" are actually two warships without a weapon system!
But this kind of 4,000-ton displacement warship, since its design is to pursue high speed, it must sacrifice a part of its comfort. In other words, this kind of ship is fast to drive, and it feels good to ride, but it is unstable and swaying. It's amazing. Even Yang Zhiliang, who graduated from Dalian Shipbuilding Institute, had to vomit for a long time before he could adapt. Can the "Twins" sisters, two delicate and weak girls, be well?