Chapter 143 New Frigate (Part )

"This question may be a bit presumptuous, but is the design and manufacturing of the turbojet 14 completely completed domestically?"

The previous politeness was a courtesy. Once the serious issues started to be discussed, Lin Qing quickly returned to her straight-forward habit.

The reason why Spey's aero-engine modification is not going forward is ultimately because the Spey MK202 itself is a British engine. It will not do anything good to think about modifying the gas turbine before the aero-engine prototype is fully understood. result.

And if the design of the Turbojet 14 was completely made by China's own people, this problem would not exist.

"Of course." Chang Haonan nodded without hesitation:

“The original design of the compressor part was based on the R13F-300 and Spey MK202, but later it was discovered that the coordination between the high and low pressure compressors was very poor, and there were still hidden dangers after many modifications, so a comprehensive redesign was recently carried out. It has nothing to do with before.”

In fact, he had already been mentally prepared to face similar problems.

On the one hand, this engine is indeed an exaggerated improvement compared to the past, when China was stumbling even in imitating aircraft engines.

On the other hand, there are indeed many cases of using foreign designs and imported parts to make them domestically produced. In many cases, it is exposed when there is a problem with the product in the hands of users, or there is a sudden loss of parts supply after being sanctioned.

There is no reason for Party A not to worry.

"In that case, is it possible to design a light ship gas turbine based on the turbojet 14-core engine?" Lin Qing finally asked the question he wanted to know most.

"The aircraft was diverted..."

After talking about this, Chang Haonan finally realized that no wonder people from the Ship Research Institute were interested in aero engines:

"Technically speaking, with the performance data of the turbojet 14, there should be no problem in changing it to a power gas turbine of about 13 megawatts, but... I wonder if you can reveal your specific use?"

Chang Haonan's understanding of naval equipment is mainly out of interest. In his impression, after the two Type 052 destroyers, the Navy seems to have not started construction of the next ship using gas turbines until after the new century.

Lin Qing hesitated.

After all, the two sides do not belong to the same system.

However, considering that the confidentiality level of the other party should be sufficient, and if the turbojet 14 aero-to-fuel solution is really adopted, there may be many opportunities for cooperation in the future, so I still spoke truthfully:

"We are currently selecting power for the navy's new generation of main battleships, and the target for ship installation is a 4000-ton frigate."

After finishing speaking, perhaps because he was worried that this type of ship was not heavy enough, he drew another picture on the back:

"If the performance meets the requirements, destroyers with larger tonnage in the future may also use the same power."

"A 13-megawatt gas turbine is definitely not enough to be used on a destroyer. I am afraid that 6000 tons would have to be piled on four main engines." Chang Haonan replied with a smile:

"But if a 4000-ton frigate uses a gas turbine, it should be about the same as the American Perry-class?"

With his rich experience in painting and eating cakes in the past, he can naturally see that any destroyer equipped with the same power will be a big cake.

But it's okay.

The 4000-ton frigate obviously refers to 054/054A.

Although he didn't know much about the twists and turns in the development process of naval equipment, judging from the other party's intention, this gas turbine solution should be the first choice. However, there was no reliable gas turbine model at this time in the previous life. That's why it was switched to a diesel engine power solution.

And more than 40 ships of this model had been built before his rebirth, so even if he only installed this model, there would be absolutely no problem in terms of quantity.

Lin Qing was not embarrassed after being exposed, and nodded simply:

"Yes, the general idea is similar to Perry, a relatively low-cost general-purpose frigate that can be built quickly."

"However, we may choose a larger aspect ratio than the Perry class, paying the price of some hull space in exchange for higher speed."

"In that case, it shouldn't be a big problem."

Chang Haonan briefly recalled the general data of the Perry class, and then answered very confidently:

"The Perry-class has a displacement of 4100 tons and is equipped with two low-power versions of LM2500, totaling 30 megawatts. Our two gas turbines can also reach approximately 26 megawatts. When paired with two diesel power generation auxiliary engines, the power is sufficient."

Lin Qing's eyes flashed with excitement.

Although the young man in front of me seemed to be a bit too generous, after all, the turbojet 14 was already on display at the venue, and he seemed to have some understanding of marine power, so I really gave him one. An inexplicable sense of reliability.

"In that case, I wonder if you have any plans to carry out air conversion and refueling?"

"Or we can apply to the Shipbuilding Industry Corporation for a public bidding. Now you should be the only one in the country with this level of technology."

Now the new frigate program has reached a critical juncture, and it is about to decide on the specific technical route and enter the overall design stage.

Generally speaking, after starting the overall design, there is no turning back.

So Lin Qing was very anxious, very anxious.

Even if Institute 606 cannot deliver a finished product immediately, he hopes that the other party can at least provide a sufficiently credible solution and relevant technical information, so that his client, the Naval Equipment Department, can believe in the feasibility of the gas turbine solution.

"Well...In fact, the 606th Institute has already started to carry out the work of aviation diversion and combustion."

"It's just that the current improvement target is a gas turbine for power generation that uses natural gas as fuel. There are some differences in performance requirements and main combustion chamber structure from the power engine you need."

Similar to the situation in the previous life, after the installation and test flight of the Turbojet 14 came to an end, Yan Zhongcheng began to design the aeroderivative fuel plan.

From the perspective of hindsight, this is actually a job he is better at.

In the original timeline, the QD128 was far more successful as an industrial gas turbine than the turbojet 14 as an aerospace engine.

As for prioritizing power generation gas turbines over power gas turbines, this is basically industry inertia.

Since about 20 years ago, our country has modified and produced industrial gas turbines such as WJ-6G, WP-6G and WZ-6G based on aero engines. They are used for self-generated power generation in oil fields, petrochemicals, posts and telecommunications and other departments. They are considered domestic gas turbines. Few market demands.

In this era of severe fragmentation, as a person in the aviation system, Yan Zhongcheng did not know that Shipbuilding Industry was designing a gas turbine-powered frigate.

Fortunately, Chang Haonan knows now.

For Lin Qing, this was completely a surprise.

So he immediately asked:

"If funds are sufficient, Comrade Xiao Chang, can you estimate how long it will take to come up with a prototype that can be tested?"