After that, the director of the company office opened the clock-in sensors on each table in the conference room.
After punching in and comparing the data, the director of the company office nodded to Zhou Yan: "Mr. Zhou, everyone present has signed a confidentiality agreement."
"The meeting continues, let's introduce the next project."
"Everyone must be familiar with domestically produced large aircraft, but everyone is also aware of the current situation of domestically produced large bypass ratio turbofan engines..."
Zhou Yan did not say any more, but took a leisurely look at Xu Chongsheng, who was calm and relaxed beside him, and then stared at a group of employees under the stage with a smile as they started a group discussion, and gradually stopped the discussion spontaneously, waiting for Zhou Yan to continue.
speak.
"For high-bypass-ratio engines, we have ready-made technology in our company's database, and it's technology that can compete with the engines that Rolls-Royce and General Dynamics are still developing. But..." Zhou Yan smiled, "This thing,
Drawing it by everyone's hands will not improve our R&D level, so..."
"What should we do?"
The technicians in the audience were all silent.
"Now, our company also has a large bypass ratio turbofan engine that was completed in the 1960s and 1970s, and it is also a three-rotor..."
Halfway through Zhou Yan's words, many people present realized which engine he was referring to, the D-18T installed on the AN-124 and AN-225.
For those sitting here, D-18T may be the most suitable engine for "practice" and "strengthening".
Although the country has completed many projects to become familiar with the international standard aviation design process, in fact, the domestic aviation industry is still "separated" from the north: both in terms of materials and engine design and calculation framework, there are still many "
Traces inherited from Big Brother.
"My request is to use the material library, computational fluid dynamics and thermal calculation resources that our company will soon open to redesign and optimize the core engine of the D-18T," Zhou Yan paused and continued, "Follow the vortex
Like the propeller-to-turboshaft conversion, the D-18T also has two directions. One is to use the company's GJB to work towards military use.
The other one is to expand the fan, optimize fuel economy, and work towards the direction of large passenger aircraft engines..."
Hearing this, technicians from other departments except the airframe and avionics departments were overjoyed: there is another big project.
And just when most people thought that after the D-18T was over, the mobilization meeting would also end, Zhou Yan suddenly pressed the enter key, and in the hall that was so quiet that you could hear a pin drop to the ground, he was so idle.
…
"Next, there is a series of projects. At this stage, there are three main tasks." Zhou Yan smiled and glanced at the direction of the body design department, "First, to design a medium-sized unmanned aerial vehicle with a combat radius within 250 kilometers according to military standards.
The aircraft is required to be operated by a single person and can take off in a small space, and the take-off method is not limited.”
Seeing that some people in the audience had already taken out pens and started recording, Zhou Yan shook his head: "No need to remember, the group company will issue a design task statement to the relevant departments later.
For the second model, the company provides engine parameters, and the airframe department uses the engine parameters to design a large UAV with a combat radius of four thousand kilometers and a payload of less than two tons."
Many people in the audience had their eyes widened and whispered: "Isn't this the upgraded version of the beautiful Predator?"
Of course, what is even more shocking is what lies behind.
"The third paragraph, the power and aerodynamic shape design has been completed. The relevant design reference and material information will be released to the relevant departments to cooperate with the design tasks and be open to relevant technicians. For specific designs, see the design task book..."
The curiosity of everyone present was aroused. According to the order, the third model to be compared should be the "Global Hawk", but Zhou Yan didn't say anything, which aroused the itch in many people's hearts...
Of course, not only the technicians, but also Xu Chongsheng, who was kept in the dark, was a little curious. After the mobilization meeting, he followed Zhou Yan to the office.
"Mr. Zhou, the last drone..."
"Well..." Zhou Yan said with a smirk on his face, "It will take some time before the data can be uploaded. Actually, I think..."
Xu Chongsheng has already started to roll his eyes...
"Yes," Zhou Yan thought for a while and looked at Xu Chongsheng with a smile, "Mr. Xu, you have been working within AVIC for many years. You should know how their high-altitude test bench and test base are built, right?"
"This..." Xu Chongsheng thought for a while, "The high-altitude test bench is simple, with high altitude, water, oil depot and high-power fans. As for a full set of tests, there is no need. There are not many newly designed engines in China every year...
"
"Oh," Zhou Yan nodded and thought for a while, "If you want to build a small high-altitude test bed that can test a five thousand kilowatt engine, how much will it cost?"
"Let me ask you something..."
Xu Chongsheng immediately called the red hotline on Zhou Yan's desk, called an acquaintance, and asked about the price.
"The project cost is less than 200 million yuan, and the equipment is about 100 million yuan..."
"It's quite cheap," Zhou Yan thought for a while, then suddenly thought of a question, "What if it's a rocket test bed?"
Fortunately, I think divergently.
"This..." Xu Chongsheng chuckled, "The project cost is a little more expensive, and the equipment cost is relatively low. After all, rockets come with their own fuel and oxidizer. However, Mr. Zhou, our turbofans haven't figured it out yet. We are thinking about rockets.
Isn’t it a bit inappropriate?”
"Forget it..." Zhou Yan thought for a while, opened the computer with his ID card, and sent an email to Xu Chongsheng from the office system, "The three documents have been sent, you can read it yourself..."
Zhou Yan originally thought that Xu Chongsheng would leave, but he didn't expect that Xu Chongsheng would stare at him with a proud face.
"What's wrong with you? Your face is cramped?"
"Actually," Xu Chongsheng said like a victorious cockfighter, "I didn't expect to ask anything. The reason for coming here this time is because in the morning, Hongqi sent an invitation letter, asking us to visit one of their buildings.
Production line, what do you mean?"
"We have to go..." The smile on Zhou Yan's face disappeared, "When will we go? Let Zhengxin prepare in advance."
"Next Monday, there are still five days left," Xu Chongsheng thought for a while, "There is another thing. Zhengxin said that your Lao Shizi's active aerodynamic design has produced results. The aerodynamic design has been completed in the aerodynamic laboratory.
The appearance has been sent to your office system mailbox."
"real?"
Zhou Yan quickly clicked on his mailbox, opened the drawing of the aerodynamic shape, and was happy.
Fluid mechanics is a large subject, which includes aerodynamics and liquid mechanics. Although they are different branches, the basic calculation principles are the same.
The aerodynamic characteristics of machinery at high speed in air are similar to certain speed ranges of machinery in liquid.
The Qingyan Aerodynamics Laboratory used active aerodynamic models to test the aerodynamic shape of a high-speed sports car in the 400 kilometers per hour range, which is similar to the water-drop shape of a submarine.
However, in order to arrange the power cabin and cockpit, a group of experimenters connected a series of water drops in parallel.
Xu Chongsheng, who was on the side, saw Zhou Yan's expression was a little strange. He raised his head and took a look, and then his eyes widened: "The aerodynamic shape of this car has a small air resistance coefficient, but why do I feel that this shape is a bit retro?"
Seeing Zhou Yan staring at him, Xu Chongsheng added insincerely: "The coefficient of 0.16, even for mass production, can only increase by two percentage points at most..."
"Zhengxin should not be needed for the time being..."
Zhou Yan sighed and transferred the test data and models to Cosworth, Spyker and Dodge to see if the three companies could use them.