Chapter 773: It's nice to have money

"Finally it's my turn to play." Tan Zhenhua whispered, then took out a drawing from his pocket, and spread it out on the small table in the room, spreading it out on the floor that the few people discussed earlier. "Super Seven" sketch.
Unlike the "Super Seven" sketch, this drawing is quite detailed. It not only has a schematic diagram of the structure, but also a section view, and there are many English annotations on the drawing.
Mahmoud recognized it at a glance, this is an aero engine!
"This is?" He cast a puzzled look at Tan Zhenhua.
"This is a schematic diagram of the Spey RB168-Mk807 ​​engine. It is one of the reference materials given to me by the respected Sir Hook." Tan Zhenhua explained.
"Speey?" Mahmoud couldn't help but blurt out.
Of course he knew about the Spey engine, and after spending so long with the technical delegation of Huaxia in London, he even knew that Huaxia was under the impetus of the check waved by Tan Zhenhua to carry out two important changes to the introduction of this engine. This type of negotiation has come to an end. The final agreement is about to be reached under the "happy" communication between two well-informed "old friends" for this business that both parties love and wish.
However, "Spey" is a big guy. Mahmoud has seen the introduction of this engine. Although the MK202 originally introduced by China has an afterburner thrust of more than 9 tons, the thrust of the model that is being negotiated to increase the thrust is developed. It is more than 10 tons, but its weight is also more than 1.8 tons, its length is more than 5.2 meters, and its diameter is close to 1.1 meters. Such a thick, long and simple chrysanthemum does not look like it can be installed. The appearance of going into the belly of the small "Jianqi", even the "Super Seven" in the sketch will not work? He just saw that it was clear that the second half of the "Super Seven" was almost exactly the same as the "J7".

It’s Spey. In fact, Spey doesn’t refer to an engine, but a series.
Tan Zhenhua said affirmatively, and at the same time began to explain:
Based on the core machine RB168, Rolls-Royce has defined the different uses of this engine. A series of extended models have been developed. What you see now is one of its models-MK807. This engine is developed based on the reduced version of MK202, MK555. Because the development period is relatively recent, some new materials are used. And technology, it has made a great progress compared to the prototype performance. It has a thrust of 49.1 kN or 5 tons, a thrust-to-weight ratio of 4.72, an engine weighs 1059 kg, and a length of 2900 mm. It is currently very mature. As far as I know, Dali and Basie have obtained the authorization from Rolls-Royce to produce this engine to power the "AMX" attack aircraft jointly developed by their two countries."
Mahmoud immediately found the problem in Tan Zhenhua’s words: "I can understand what you said Zhenhua, and I also admit the maturity of this engine. Compared with the "turbojet 7," this turbofan engine is undoubtedly in terms of fuel consumption and lifespan. It has obvious advantages in other aspects-but it does not have an afterburner? You don't want to castrate the supersonic performance of the "Super Seven"? It won't be a pure attack aircraft."
"So this is the third plan. If it has an afterburner now, it is not the third plan, but the first plan." Tan Zhenhua explained somewhat helplessly.
"You mean, you plan to add an afterburner to this engine?"
"Yes, I did plan that."
"Uh, although I'm not in aviation, I guess, adding an afterburner is not just as simple as welding a pipe up, right?"
"If it can be done by welding a piece of pipe, I will find someone to weld it tomorrow." Tan Zhenhua said half jokingly, half helplessly: "In fact, it is not just this type that needs to be welded. This time we bought one of the engines from Rolls-Royce and faced similar problems. That type of engine is already very well-completed. However, according to the views of Rolls-Royce and Mr. Wu, on the premise that we both invest in manpower and material resources. Next, it is estimated that it will take another two years to reach the design goals, and this must be the case when everything goes smoothly without major problems."
"So, do you have the expected time?"
"That's true." Tan Zhenhua said: "In fact, I started talking about this matter as soon as I returned to London in Tel Aviv. After communicating with Rolls-Royce, they agreed to jointly develop this MK807 with our Huaxia team. The development schedule It is divided into two stages. The first stage is to add an afterburner to it, while the second stage is to reduce weight and increase thrust. In the first stage, we hope to use it for no more than 5 years. Time to get usable results."
Mahamud touched his hairy chin for a while and then said: "Five years, in fact, it's okay. Can I know who will be in charge of this development work?"
"Of course it can, but this person is not suitable for me to introduce, let me tell you, Teacher Song, the person is recommended by him, and has been approved by Mr. Wu."
"In fact, both Wu Laodu and I were optimistic about Zhang Enhe, who had interrupted his studies from the United States in the last technical delegation and came to help." Song Wenhua sighed after receiving the conversation: "But unfortunately, he is still there. The New York Institute of Technology in the United States is a visiting scholar to study aerospace mechanical engineering, and this year is the last year. This opportunity is very rare for him and for China, and now it is difficult for him to spare time to build this engine, so , I recommended another friend of mine, Liu Daxiang, who also works in Sichuan Province, to host this work."
"So how is his level?" Mahmoud is actually more concerned about the ability of this candidate.
"Don't worry about this. I think you are also a well-known aero engine expert in China. I am currently a researcher and deputy chief engineer of China Gas Turbine Institute. You don't have to worry about your ability. Moreover, this project will be managed by Mr. Wu's old subordinate, Xijing Airlines. Li Mengzhen, the chief engineer of the engine plant, served as the chief technologist for the localization of all the "Speey" projects. In my contact with Daxiang a few days ago, he said that the Gas Turbine Institute attaches great importance to this project and will go all out. At the same time, he himself is about to rush to London in the near future, accompanied by a technical delegation."
"So, are you determined this time?"
Tan Zhenhua smiled bitterly: "How can you not make up your mind? Lao Ma, do you know that in order to buy the license of Rolls-Royce engine and ask it to assist in the development of our follow-up projects, I paid another 15 million, which is pounds! "
Mahmoud smashed his mouth and said sincerely: "Tan, since I met you, I have deeply realized an important problem."
"what is the problem?"
"It's nice to have money."