It's better than nothing, although the performance of the Mistral anti-aircraft missile is not good, it is better than anti-aircraft machine guns and anti-aircraft artillery air defense, right? The price is also cheap, and this kind of Sea Sidewinder air defense missile costs tens of millions of dollars for a single warship, and the entire warship with a cost of more than 100 million yuan does not ask for much money at all, and it is completely half sold and half sent, and if the Sea Sidewinder is installed on it, the cost will not be controlled.

"In fact, the most valuable place in the entire warship is the diesel engine we imported from Germany." At this moment, Director Pan spoke again: "In order to ensure that this frigate has good sailing ability, we decided to use the German MTU 20V1163TB83 diesel engine, the price of this diesel engine is not low, we also need four, which occupies a large amount of funds, otherwise, the price can be reduced." ”

Hearing this, Qin Zhenhua suddenly became a little curious: "Then what kind of power did our previous frigate use?" ”

Ground weapons have the problem of heart disease, and the main battle weapon tank, up to now, has only just entered the category of 1,200 horsepower, and it is only an experimental model, and the West has begun to adopt 1,500 horsepower as a standard configuration.

The engine is the heart of transportation, and it is also an important aspect of measuring a country's basic industry.

As for warships, Qin Zhenhua also knows a little about them.

Advanced warships have begun to use gas turbines, that is, a power system improved by aircraft engines, the British are the most advanced, the first to achieve a comprehensive gas turbine, the Americans are also close behind, however, after all, the purchase price of gas turbines is very high, even if it is already able to burn heavy oil, maintenance is not acceptable to ordinary countries, only large countries can afford to use.

Even in the Soviet Union, it was half and half, some warships used gas turbines, and some warships still burned boilers, yes, boilers have been used on warships for many years, and they are still in use.

As for light warships, diesel engines are widely used, after all, the purchase of low-speed diesel engines for ships is not expensive, and it is easy to use, and it will be repaired if it is broken.

Now, the same is true of the big eastern countries, on the destroyer, the boiler is used, and on the frigate, the marine diesel engine must be used, and now, Director Pan said that the diesel engine will be imported from Germany, Qin Zhenhua feels a little curious.

"In the past, our Type 053H frigate, with a displacement of more than 1,400 tons, used two of its own 12PA68TC diesel engines, each with a power of 8,000 horsepower and a speed of 26 knots. Later, the Type 053H1 frigate, with a displacement of 17,800 tons, was not enough of its own, so 2 18E390A diesel engines imported from France were installed, with a total power of more than 20,000 horsepower, and it was able to barely reach a speed of 26 knots, and now our Type 053H2 frigate has been enlarged to 2,000 tons, and at this time, with French diesel engines, I am afraid that it will not even reach 24 knots. ”

Every time a frigate is produced in China, two diesel engines have to be imported from France, or the diesel engine produced in China is not powerful, with high fuel consumption, poor power, short life, and foreign engines can not be compared.

With continuous improvements, the displacement of warships is definitely getting larger and larger, and at this time, it is necessary to use more powerful engines.

Moreover, this is not proportional at all.

Under water, the resistance of the water is not proportional to the velocity, at low speed, it may be proportional, and when the speed is high, it will be proportional to the square of the velocity, and if it is higher, it may be the cubic of the velocity.

20,000 horsepower, can reach a speed of 26 knots, and add four knots of speed, to reach 30 knots, about one-sixth of the increase, converted to one-sixth of 20,000 horsepower, about 3,000 horsepower, in fact, even if you add 6,000 horsepower, it is impossible to make it reach the maximum speed of 30 knots.

The tonnage of your own frigates has reached two thousand tons, and at this time, the choice of power becomes a problem.

"After some comparison, we decided to choose the German MTU diesel engine, although the power of a single unit is a little worse, but the size is small, we use two parallel drive a controllable pitch propeller, so that the maximum output of four diesel engines is close to 30,000 horsepower, not only so that its maximum speed reaches 30 knots, and the endurance is also good, at a cruising speed of 18 knots, it can reach a maximum range of 3500 nautical miles, and the maneuverability and maneuverability are also greatly improved, so, This is the most suitable choice for us at the moment, and in our new destroyers, this German diesel engine has also become our backup power. ”

In addition to this frigate, the eastern powers also plan to build a new generation of destroyers, because of the good relationship with the United States, so imported from the United States to the LM2500 gas turbine, this gas turbine is the main heart of the United States warships, four large ships, two small ships, quite extensive.

We have purchased this kind of power and have made a lot of plans, and in the future, on the basis of surveying and mapping and imitating this power system, we will complete the upgrading of the power of the warships of the eastern powers.

In addition to the gas turbine, the auxiliary power is this diesel engine from Germany.

Hearing Director Pan's introduction, Qin Zhenhua suddenly thought of Mia, this woman, who used to work in the MTU company, and later came to the big country in the East, and promoted a lot of MTU diesel engines, in addition to the ones used on the train, now there are actually the navy using their diesel engines!

The power system used in the navy, it is impossible to look for it when it is needed, it must have been exposed to it in advance, this Mia, what a powerful character.

Fortunately, I later switched to the camp of Mercedes-Benz heavy trucks, and then later, I went to a machine factory, which can be regarded as helping myself, and Wang Xiaoqiang has become a couple, and this woman will be regarded as her own family in the future.

"Zhenhua, what are you thinking?" Seeing that Qin Zhenhua suddenly fell into deep thought, Director Pan asked strangely.

Qin Zhenhua smiled: "I was thinking about whether our diesel engine could be modified into a marine one, but then I felt that it would not work, the power was still too small." ”

Twelve hundred horsepower, what is enough? People often want tens of thousands of horsepower, and not only the power is large, but the fuel consumption must be small.

Marine diesel engine, generally low-speed, hundreds of revolutions per minute, and, as long as it runs, it is a smooth rotation, no need to change the speed, and the vehicle diesel engine is very different, the vehicle diesel engine requires a higher speed, less are two thousand rpm, more can even reach three thousand rpm, at the same time, the throttle will often change drastically, the working conditions of the diesel engine continue to change.

Therefore, the two are different and cannot be mixed.

"Yes, we also look forward to domestic diesel engine factories to make qualified diesel engines to support us." Hearing Qin Zhenhua's words, Director Pan affirmed his idea, if the domestic diesel engine is powerful, they will not purchase foreign products.

It's expensive.