After finishing with the machine tool technology, Li Ming picked up the book "Aerodynamics of Aircraft," feeling even more excited.
In the early days of the New Long Country, the aviation industry was almost a blank slate. The country couldn't even build a single flyable jet fighter and was entirely dependent on Polar Bear aid.
"System, learn this book."
"【Comprehension System activating, transferring knowledge... Difficulty high, accelerating analysis...】"
The amount of information this time was much greater than the machine tool technology, and Li Ming felt his brain burning with pain.
Countless professional knowledge, including aerospace engineering, fluid mechanics calculation methods, engine principles, and materials science, flooded into his mind.
Especially when the core technology of jet engines was transmitted, he even felt a dizzy spell.
"【Knowledge transfer complete, turbojet engine technology successfully acquired】"
When the pain subsided, Li Ming found that he not only understood the basic theories in the book but also mastered jet engine design and manufacturing technology far beyond this era.
"This... this is incredible."
He checked his memory and realized that the system had given him early turbojet engine technology similar to what Rolls-Royce had developed some years ago, roughly equivalent to the "Nene" engine level.
This type of engine was considered advanced worldwide at the time, and Polar Bear later reverse-engineered it to produce the famous VK-1 engine.
In this era, Long Country didn't even have independent research and development capabilities for piston aircraft engines, let alone jet engines.
Even Polar Bear only mastered turbojet engine manufacturing capabilities by introducing technology from the Royal Country.
If he could bring this technology back to the country, it would be a qualitative leap for the development of Long Country's aviation industry.
He excitedly took out paper and pen and began to draw the overall structural diagram of the turbojet engine.
This single-shaft turbojet engine mainly consisted of five parts: an intake, a compressor, a combustion chamber, a turbine, and a nozzle.
"The key parts are the compressor and turbine..." Li Ming analyzed as he drew, "The blade design and materials for these two parts are the biggest technical challenges."
He meticulously drew the aerodynamic profile of the compressor blades and their internal cooling channels, as well as the composition ratio of the high-temperature alloy.
These blades had to rotate at high speeds in high-temperature and high-pressure environments, requiring extremely high material performance and manufacturing processes.
"Of course, the engine control system is also crucial." Li Ming then drew the schematic diagram of the fuel control system, including key components such as the mechanical fuel metering device, governor, and temperature controller.
It took him a full two hours to record all the core technologies of the first-generation turbojet engine, including:
Overall design of the complete machine and component configuration plan
Aerodynamic profile and strength calculation methods for compressor blades
Structural design of the combustion chamber and optimization of combustion efficiency
Design of turbine blades and high-temperature alloy formula
Bearing system and sealing technology
Fuel control system
Engine testing methods and key parameters
"This engine's thrust should be able to reach about 2 tons, which is enough to be installed on early jet fighters." Li Ming calculated the design parameters.
Even with these drawings, manufacturing such an engine under the industrial conditions of the early New Long Country would still be extremely difficult.
The smelting of high-temperature alloys, precision machining equipment, and testing equipment were all huge challenges.
But at least with a technical roadmap, they could overcome difficulties step by step, rather than starting from scratch as in history.
"However, I need to find a way to simplify some technologies, especially in terms of materials, using alternative solutions that can be realized with existing conditions..."
Li Ming pondered, then added some notes to the drawings, indicating alternative materials and simplified structures that could be manufactured with the technological level of the time.
"【Prompt: Based on current comprehension value, host can obtain a revised early turbojet engine design plan, suitable for Long Country's industrial foundation】"
"This is exactly what I need!" Li Ming was pleasantly surprised to find that the system seemed to be able to read his thoughts.
A new stream of knowledge once again poured into his mind, this time he received a simplified version of the turbojet engine design plan.
This plan lowered the technical requirements for some key components and used more readily available materials. Although the performance was somewhat reduced, the manufacturing difficulty was greatly reduced, making it more suitable for the early industrial conditions of the New Long Country.
"Good, I'll go with this plan!" Li Ming began drawing on new paper again, this time drawing the simplified turbojet engine.
This simplified design reduced the engine thrust to about 1.5 tons, but the material requirements for key components were reduced by more than 30%, and the manufacturing process was also greatly simplified.
For example, the turbine blades, which originally required single-crystal alloys, were changed to a scheme of casting ordinary high-temperature alloys plus mechanical processing. Although the lifespan and high-temperature resistance performance decreased, they could at least be manufactured under the conditions at that time.
Li Ming also simplified the fuel control system, replacing parts that originally required precision instruments with more mechanical devices, enhancing the system's reliability and maintainability.
"This plan will not only allow us to have our own jet engines as soon as possible but also serve as a practical project for training Engineers and technicians, laying the foundation for the subsequent development of more advanced engines." Li Ming looked at the drawings with satisfaction, feeling that they were very practical.
After completing the drawings for the two engine plans, Li Ming suddenly thought that engines alone were not enough; aircraft design was also needed.
"System, I need design data for early jet fighters."
"【Analyzing... Based on current comprehension value, an early subsonic jet fighter design plan can be provided】"
Another wave of knowledge poured into his mind, this time concerning overall aircraft design, aerodynamic layout, structural strength calculations, and other aspects.
Li Ming quickly mastered a design plan similar to Polar Bear's early MiG fighters.
"Excellent, this way we'll have a complete technology chain." Li Ming murmured to himself, "From the engine to the fuselage structure, and then to the airborne systems, this is a complete solution!"
He quickly drew the three-view and key cross-section structural diagrams of this fighter and marked the main materials and manufacturing processes.
This design adopted an all-metal structure. Although its aerodynamic shape was not as advanced as later fighters, it was already a huge improvement for the early New Long Country.
"Just these technologies alone will be able to spark a small industrial revolution when I return to the country." Li Ming looked at the stacks of drawings on the table, feeling incredibly excited.
"【Host's comprehension value continues to increase, current comprehension value: 25】"
Li Ming felt the changes in his mind; his understanding of technology seemed to have deepened, and some previously vague concepts became clear.
"It seems that learning and thinking can also increase comprehension value; this system is really well-designed."
He organized all the drawings and carefully stored them in his personal space.
The value of these drawings in this era was immeasurable, more precious than any gold or jewelry.
"No!" Li Ming suddenly realized a problem, "I was so busy drawing, but there's too much of this stuff. Domestic experts might not understand it right away. I need to write detailed manuals and manufacturing guides."
He took out a few more blank sheets of paper and began to write detailed explanations of the principles, manufacturing processes, and operating guides for each technology in Chinese.
Considering that the drawings might fall into the hands of technicians who didn't understand English, he deliberately explained each key step in easy-to-understand language.
"This time it's settled. With these manuals, even if I'm not present, domestic Engineers and technicians can follow the diagrams and gradually master these technologies."
Li Ming satisfactorily closed the last manual and stored it in his space.
He then looked around, thinking about what other technical data was worth bringing back to the country.
"Next, I need to find more advanced technical data. Electronics, radar technology, chemical industry..." His gaze became firm, "There are still many areas that need improvement; I must seize the time."
...