Sir Ralph Robbins said in his heart that if he didn't know that Huaxia would not be able to imitate it in another 30 years, do you think I would recommend this engine to you? He said with a smile: "Fernandez, you can't say that, although the technical content of RB211 is indeed very high, if you introduce this engine, while digesting and absorbing the technology of RB211, it will also bring great improvement to the overall technical level of Huaxia aero engine industry, right? From this point of view, this business is still very cost-effective." ......”

Meng Haibo, Nie Guang and Fang Zhiqiang were a little moved, and their eyes kept glancing at Chen Geng.

They also think that this is the truth, although the RB211 three-rotor large bypass is too high than the technical content of the turbofan, and there is no model suitable for this engine in China, but just like Sir Ralph Robbins said, if we introduce this engine, in digesting and absorbing the technology of this engine at the same time, how much can it bring to our country's aero engine industry to improve and pull?

Fortunately, although they itched a lot in their hearts, they finally understood who the funder was, and they knew that it was absolutely impossible to put pressure on Chen Geng at this time, otherwise it would only cause Chen Geng's rebellious mentality, and they all obediently did not speak.

Chen Geng shook his head with a smile: "Sir, let's not discuss this, I'm not interested in RB211 at all, let's talk about 'Thai'." ”

Sir Ralph Robbins was a little sorry, damn Fernandez Chen, how could he be so dead-eyed. But the other party had no interest in this engine at all, and he had no choice but to nod: "Please speak." ”

"What is the potential for improvement in Thai?"

"Huh?" Sir Ralph Robbins blinked, not quite understanding what Chen Geng meant.

"I mean, with Rolls-Royce's technical prowess, how far can you increase the maximum thrust of 'Thai'?"

Sir Ralph Robbins somewhat understood what Chen Geng meant, and realized that Chen Geng was not very satisfied with the power of the "Tai" MK650, and he suddenly rejoiced in his heart: This is all money! Suppressing the joy in his heart, Sir Ralph Robbins said quietly: "From the perspective of technology? Well, I don't know very well, but I remember that it seems that it can reach the level of 110KN in theory...... Jim, you answer this question from Mr. Fernandez. ”

Jim Armstrong, deputy chief designer of the "Thai" series of turbofan engines, Rolls-Royce arranged him as a technical consultant to answer Chen Geng's questions at any time.

Hearing Sir Ralph Robbins's words, Jim Armstrong pushed his glasses and said confidently: "The improvement potential of 'Thai' is very large, by increasing the fan diameter, the number of stages of low-pressure compressors and high-pressure compressors, improving the shape of the combustion chamber, increasing the number of nozzles and other grades, the 'Thai' series engine has a theoretical maximum thrust output capacity of 140KN." ”

"140KN? is so exaggerated?" Chen Geng was a little surprised, you must know that the maximum thrust of the F117-P-100 engine carried on the US C-17 transport plane is only 170KN.

For example, the CF34 series turbofan engine used in our ARJ21 aircraft, the initial CF34-3A thrust is only 41KN, but General Electric continues to improve this engine, by increasing the fan diameter, increasing the number of stages of high-pressure compressor and low-pressure compressor, improving the combustion chamber and increasing the number of nozzles, etc., the CF34- The thrust of the 10A has been increased to 88.9KN, which more than doubles the maximum thrust.

But that's not the limit of the CF34, GE has ambitiously stated that they can improve the thrust of the CF34 to 100KN if needed.

Since the CF34 can be upgraded from the original 41KN to 88.9KN and has the potential to be improved to 100KN class, it is of course theoretically possible for the "Tai" series to be upgraded from the original MK601's 60KN level to 140KN to 150KN class.

Faced with Chen Geng's question, Jim Armstrong shrugged his shoulders and looked rightfully proud: "We are Rolls-Royce." ”

“......”

Well, this reason is very strong and convincing, Chen Geng nodded, and asked again: "So after the increase to 140KN, will the life of the engine and the first turning period be affected? Can these two indicators be extended again on the existing basis?"

The question of lengthening, not shortening, is important.

If the thrust is improved, the life of the engine and the first turnover period are much shorter than before, it means that the thrust is improved in exchange for sacrificing the reliability of the engine, on the contrary, if the life and the first turnover period are not shortened, but improved, it means that the potential of "Thai" has been fully exerted, and for enterprises, such a performance improvement is meaningful.

"Of course. Jim Armstrong nodded in the affirmative.

Chen Geng nodded, and then looked at Sir Ralph Robbins: "Sir, I think we need to add new items to the terms of cooperation. ”

"Oh?" said a puzzled expression, but one had to look at Sir Ralph Robbins's almost smiling face to know how happy he was at the moment: it was all money!

"I needed Rolls-Royce to provide us with technical support to improve the performance of the Thai engine, to help us increase the thrust of the Thai from 65KN to 140KN on the MK650, well, 10KN as a step. ”

"Of course, that's no problem at all," said Sir Ralph Robbins' face, which burst into laughter, "as long as you pay." ”

Sir Ralph Robbins is worried that if Rolls-Royce increases the thrust of the "Thai" from 65 kn to 140 kn, it will have an impact on the upcoming IAE large bypass ratio turbofan engine project in which he has a stake?

In fact, he really wasn't worried at all.

Although "Tai" is also a turbofan engine, but the original design is after all in the 60s, limited by the level of the time and the ability of the designer, even if it is improved, some problems of this engine can not be avoided, such as the noise level and fuel consumption level are relatively high, maintenance is not very convenient, etc., but IAE2500 is different, this engine integrates Rolls-Royce, Pratt Whitney, German MTU aviation, The most advanced technology of the European and American and Japanese powers such as Fiat Aviation and Dongying Airlines has applied the most advanced aero engine design concept, in terms of fuel consumption control, noise level, easy maintenance and many other aspects, it is not an old-fashioned "Thai" can be compared, even if the maximum thrust, life and first turning period of the two engines are the same, but the fuel consumption level, noise level and comfort of "Thai" are far from IAE2500.

Fuel consumption is the most important point for airlines, even if the fuel consumption per person per kilometer is reduced by 1 gram, it can also greatly affect the procurement of airlines, not to mention that the fuel consumption level of IAE2500 is a leapfrog improvement compared to "Thai".

"Of course, this is how it should be," Chen Geng nodded: "But the price is ......"

Before Chen Geng could finish speaking, Sir Ralph Robbins immediately said, "I promise justice." ”

Chen Gengcai didn't believe his plan, fairness? What is justice? But with Sir Ralph Robbins's words, Chen Geng was also content, at least Rolls-Royce would not ask for a sky-high price.

........................

The fact that Rolls-Royce will not ask for a sky-high price does not mean that Rolls-Royce will not open his mouth, and in the following negotiations, the Chinese representatives can be regarded as seeing the "good appetite" of Rolls-Royce......

The conditions for the transfer of the "Tai" MK650-8C engine from Rolls-Royce to Chen Geng's joint venture in Huaxia were:

Chen Geng must purchase 100 "Thai" MK650-8C, with a total price of 86 million pounds;

The overall design, technology and patent purchase cost of the "Thai" MK650-8C, with a total price of 65 million pounds;

The cost of purchasing the patent for the MK650-8C engine auxiliary engine of "Thai" is 7 million pounds;

"Thai" MK650-8C engine production equipment procurement costs, the total price is 12 million pounds;

"Thai" MK650-8C engine performance improvement technical support costs, with 10KN as a step, each step 3 million pounds;

The technical staff of Rolls-Royce went to Huaxia to assist Chen Geng in the layout, installation and commissioning of the production line, as well as the follow-up test and assessment costs, all of which were borne by Chen Geng;

The cooperation between the two sides is divided into two steps, one is to use the raw materials, blanks, finished parts and accessories provided by Rolls-Royce within 4 years to copy the engine with the same quality level as the UK; Chen Geng bears the procurement costs of finished parts and accessories, and Chen Geng also bears the business trips, subsidies and transportation expenses of Rolls-Royce personnel to China......

All of them add up, even if it is just to increase the maximum thrust of the Thai MK650-8C engine to the level of 85KN, it will cost Chen Geng at least 250 million pounds.

In 1975, when Huaxia introduced the "Spey" MK202 military turbofan engine from Rolls-Royce, the total price of the contract was only 76.79 million pounds, which also included a total of 52 MK202 engines and some spare parts, wool and finished parts, and now you dare to ask me for 250 million pounds?

Not to be outdone, the negotiators on the Rolls-Royce side said how reasonable the price we were asking for......

The two sides were arguing and fighting.

At this time, what is Chen Geng doing?