It's better to have it than not. Although the Northwest Wind Air Defense Missile has poor performance, it's better than anti-aircraft machine guns and anti-aircraft guns? After all, they are missiles and the price is cheap. Just this kind of sea rattlesnake air defense missile, one is worth it.
Tens of millions of dollars, the entire warship cost over 100 million is not much money at all. It is just half sold and half given away. If a sea rattlesnake is installed on it, the cost will be uncontrollable.
"In fact, the most expensive part of the entire warship is the diesel engine we introduced from Germany." At this moment, Director Pan said again: "In order to ensure that this frigate has good navigation capabilities, we decided to use German MTU.
The 20V1163TB83 diesel engine, the price of this type of diesel engine is not low, we also need four units, which accounts for a lot of funds. Otherwise, the price could be reduced."
Hearing this, Qin Zhenhua was a little curious: "What kind of power did our previous frigate use?"
Ground weapons have heart disease problems. The main combat weapon tank has just entered the field of 1,200 horsepower so far, and it is only an experimental model. The West has begun to use 1,500 horsepower as standard configuration.
It's right.
Engines are the heart of vehicles and are also an important aspect of measuring a country's basic industry. Whether it is for vehicles, warships, or aircraft in China, there are problems.
As for warships, Qin Zhenhua also has some understanding of them.
Advanced warships have begun to use gas turbines, which is a power system improved by aircraft engines. The British are the most leading and have taken the lead in achieving comprehensive gas turbineization, and the Americans are also closely behind. However, the purchase price of gas turbines is very high after all.
High, even if it can burn heavy oil, maintenance is not acceptable to ordinary countries, and only major countries can afford it.
Even the Soviet Union was half and half. Some warships used gas turbines, while others still used boilers. Yes, the power of boilers has been used on warships for many years and is still in use.
As for light warships, diesel engines are widely used. After all, low-speed diesel engines for marine use are not expensive to purchase and are easy to use, and they will be repaired if broken.
Now, the same is true for the Eastern powers. On destroyers, boilers and frigates, they must use marine diesel engines. Now, Director Pan said he wanted to introduce diesel engines from Germany, and Qin Zhenhua felt a little curious.
"In the past, our 053H frigate had a displacement of more than 1,400 tons, and used two of its own 12PA68TC diesel engines, each with a power of 8,000 horsepower and a speed of 26 knots. Later, the 053H1 frigate had a displacement of 1,000 tons.
It's not enough for one thousand seventy or eight hundred tons, so we installed two 18E390A diesel engines imported from France, with a total power of more than 20,000 horsepower and can barely reach a speed of 26 knots. Now our 053H2 frigate has amplified displacement.
At this time, if you use French diesel engines, you may not even be able to achieve 24 knots."
For every frigate produced in China, two diesel engines have to be imported from France. The diesel engines produced in China are not powerful, with high fuel consumption, poor power and short life, which are incomparable to foreign engines.
With continuous improvement, the displacement of warships will definitely become larger and larger. At this time, you have to use a more powerful engine.
Moreover, this is not a proportional relationship at all.
Underwater, the resistance of water is not proportional to the speed. At low speeds, it may be proportional to the square of the speed. If the speed is higher, it will be proportional to the square of the speed. If it is higher, it may be the third power of the speed.
Twenty thousand horsepower can reach a speed of 26 knots. If you increase the speed of four knots, it will increase by about one-sixth. If you convert to one-sixth of 20,000 horsepower, it will probably be more than three thousand horsepower.
In fact, even if it increases by 6,000 horsepower, it is impossible to reach its maximum speed of thirty knots.
The tonnage of our frigate has reached 2,000 tons, and at this time, the choice of power has become a problem.
"After some comparison, we decided to choose the German MTU diesel engine. Although the power of a single unit is a bit worse, the size is small. We use two parallel vehicles to drive an adjustable pitch propeller, so the maximum number of four diesel engines is
The output power is close to 30,000 horsepower, which not only makes its maximum speed reach 30 knots, but also has good endurance. At the cruising speed of 18 knots, it can reach a maximum range of 3,500 nautical miles, and its maneuverability and maneuverability control are also very good.
Great improvement, so this is our most suitable choice at present, and, on our new destroyer, this German diesel engine has also become our backup power."
In addition to this kind of frigate, the Eastern Powers also plan to build a new generation of destroyers. Because they have a good relationship with the United States, they imported LM2500 gas turbines from the United States. This gas turbine is the main heart of American warships. It uses four large ships and small ships.
It uses two units, quite extensive.
Since we have purchased this power, we have made many plans. In the future, we will complete the renewal of the warship power of the Eastern power based on surveying, mapping and imitating this power system.
In addition to the gas turbine, the auxiliary power is this German diesel engine.
After hearing Director Pan's introduction, Qin Zhenhua suddenly thought of Mia. This woman used to work in MTU company, but later came to the Oriental Power and promoted a lot of MTU diesel engines. In addition to those used on trains, she is now actually
And the Navy is using their diesel engines!
The naval power system cannot be searched for when needed. It must have been contacted in advance. Mia is such a powerful character.
Fortunately, I later changed to the Mercedes-Benz heavy truck camp, and later I went to a machine factory to help me. Moreover, I have become a couple with Wang Xiaoqiang, and this woman will be her own family in the future.
"Zhenhua, what are you thinking?" Director Pan asked strangely when he saw Qin Zhenhua suddenly fall into deep thought.
Qin Zhenhua smiled: "I was wondering if our diesel engine could be modified into a marine product. Later, I felt that it was not possible, and the power was still too small."
What is enough for 1,200 horsepower? People often need tens of thousands of horsepower, and not only have large power, but also small fuel consumption.
Marine diesel engines are generally at low speeds, and they only rotate a few hundred times per minute. Moreover, as long as they are running, they rotate smoothly without changing the speed. There is a big difference between them and automotive diesel engines. Vehicle diesel engines require higher speeds and fewer
All of them are two thousand revolutions, and most of them can even reach three thousand revolutions. At the same time, the accelerator will often change drastically and the working conditions of the diesel engine will continue to change.
Therefore, the two are different and cannot be mixed.
"Yes, we also look forward to the domestic diesel engine factory being able to make qualified diesel engines to match us." Hearing Qin Zhenhua's words, Director Pan affirmed his idea. If the domestic diesel engine is powerful, they would not buy it.