"This question may be a bit presumptuous, but is the design and manufacture of Turbojet-14 completely done in-house?"

The politeness in front was polite, and once he started discussing serious issues, Lin Qing quickly regained his habit of going straight.

The reason why Spey's aviation refueling can't go on, in the final analysis, is because Spey MK202 itself is a British engine, and if you think about changing the gas turbine without having a thorough prototype, there will naturally be no good results.

And if the design of the Turbojet 14 had been entirely made by Huaxia itself, this problem would not have existed.

"Of course." Chang Haonan nodded without hesitation:

"The original design of the compressor part was based on the R13F-300 and Spey MK202, but then it was found that the coordination between the high and low pressure compressors was very bad, and there were still hidden dangers after many modifications, so it was completely redesigned recently, and it has nothing to do with before."

In fact, he has long been mentally prepared to face similar problems.

On the one hand, this engine is indeed a bit exaggerated compared to the level at which Huaxia even stumbled over imitation aero engines in the past.

On the other hand, there are indeed a lot of things that take foreign designs and imported parts to be washed into domestic production, and many times the product has a problem in the hands of users, or it is exposed after being sanctioned and suddenly there is no supply of parts.

Party A is not worried.

"In that case, I wonder if there is a possibility of designing a light marine gas turbine on the basis of the turbojet-14 core engine?" Lin Qing finally asked the question he wanted to know the most.

"Flight refueling, ah......"

Talking about this, Chang Haonan finally suddenly realized that it is no wonder that people from the Ship Research Institute are interested in aero engines:

"Technically, with the performance data of the turbojet 14, it should be no problem to change to a power gas turbine of about 13 megawatts, but it is ...... I wonder if you can tell us what you do for it? ”

Chang Haonan's knowledge of naval equipment was mainly out of interest, and he was under the impression that after the two Type 052 destroyers, the navy did not seem to start construction on the next ship using gas turbines until the new century.

Lin Qing hesitated.

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

However, considering that the other party's secrecy level should be sufficient, and if the turbojet 14 flight conversion plan is really adopted, I am afraid that there will be opportunities for cooperation in the future, so I still said truthfully:

"We are currently selecting power for the Navy's new generation of main combat ships, and the target is a 4,000-ton frigate."

After finishing speaking, perhaps worried that the weight of this type of ship was not enough, he drew a pie in the back:

"If the performance meets the requirements, then the destroyer of larger tonnage may also use the same power in the future."

"The 13 megawatt gas turbine is definitely not enough for the destroyer, and I am afraid that 6,000 tons will have to be stacked with four main engines." Chang Haonan replied with a smile:

"But a 4,000-ton frigate, if it uses a gas turbine, it should be similar to the Americans' Perry-class?"

With his rich experience in painting and eating cakes in the past, it is natural to see that what destroyers are equipped with the same power is a big pie.

But it doesn't matter.

The 4000-ton frigate is clearly referring to 054/054A.

Although he is not very clear about the twists and turns in the development process of naval equipment, judging according to the meaning of the other party, this gas turbine scheme should be the first choice, but in the previous life, there was no reliable gas turbine model at this time, so it was replaced with a diesel engine power scheme.

And this model has been built more than 40 ships by the time of his rebirth, so even if it is only this one model, there is absolutely no problem in terms of quantity.

Lin Qing, who was pierced, was not embarrassed, and nodded very simply:

"That's right, the general idea is similar to Perry's, 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 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 level, and then replied very firmly:

"The Perry class has a displacement of 4,100 tons, and two low-power LM2500 are installed, a total of 30 megawatts, and our two gas turbines can also reach roughly 26 megawatts, with two diesel power generation auxiliaries, the power is also sufficient."

A hint of excitement flashed in Lin Qing's eyes.

Although the young man in front of him also looked a little big, after all, the Turbojet 14 was already in the venue, and he seemed to have a little understanding of marine power, so it really gave him an inexplicable sense of reliability.

"In that case, I wonder if you have any plans to carry out the conversion to fueling?"

"Or we can also apply to the Shipbuilding Industry Corporation to do a public bidding, and now you should have this technical level in China."

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 from the bow.

So Lin Qing was in a hurry, very anxious.

Even if it is impossible for the 606 Institute to deliver a finished product immediately, he hopes that the other party can at least provide enough credible solutions and relevant technical information, so that his client, that is, the Naval Armament Department, can believe in the feasibility of the gas turbine plan.

"Is this...... In fact, the 606 Institute has already begun to carry out the work of aviation refueling. ”

"It's just that the current improvement goal is a natural gas-fired power generation gas turbine, which is a little different from the power engine you need in terms of performance requirements and main combustion chamber structure."

Similar to the situation in the previous life, after the installation test flight of the turbojet 14 came to an end, Yan Zhongzhong began the design of the aircraft conversion plan.

From an afterthought's point of view, this is actually what 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 aero engine.

As for the preference for power generation gas turbines over power gas turbines, it is basically an industry inertia.

Since about 20 years ago, China has modified and produced industrial gas turbines such as WJ-6G, WP-6G and WZ-6G on the basis of aero engines, which are used for self-provided power generation in oilfields, petrochemicals, posts and telecommunications departments, which is one of the few market needs for domestic gas turbines.

And in this era when the division is quite serious, as a person in the aviation system, Yan Zhongzhong would not know that Shipbuilding Heavy Industry was designing a gas turbine-powered frigate.

Fortunately, Chang Haonan now knows.

For Lin Qing, this is a complete surprise.

So he immediately asked:

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

(End of chapter)