Don’t forget the national humiliation of September 18th, and love the country and the family.

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Theoretical breakthroughs will surely lead to practical pioneering and enterprising. Once polymer chemistry is truly established, new materials such as artificial fibers, cellophane, polyvinyl chloride and polyethylene will soon follow.

Especially nylon, it can be used as gears, bearings and medical sutures, or produce parachutes, military tents, aircraft tire cords, military uniforms and other military products.

Yang Tianfeng thought a long time. Although this may take a long time to achieve it, even if it was useless during the War of Resistance Against Japan, it is a gratifying good thing for the country and nation to achieve success in organic chemical engineering.

"Coal chemical industry can actually extend so much, so deep--" Zhang Dayu and others sighed, and Miao Yuntai was extremely excited about this bright prospect.

Logically speaking, there is no such thing as Zhao Yuqing interrupting, but this girl never plays according to common sense. She blinks her big eyes and asks curiously: "General Yang, how do you know so much? Although it is very simple, I feel that there are still many things that are not without, but that you don't have time to say it and don't want to say it."

"This is a long story--" Yang Tianfeng wanted to pass it over for the time being, not because he didn't lay the foundation, but because he didn't want to waste time here.

"When General Yang was traveling in Europe, he used various disguised identities, such as beggars, students, workers, and wanderers..." Suddenly, a voice sounded, and Zhao Yurou appeared wearing a mask, saying calmly and clearly: "I have extensively spyed and learned the advanced technology of European and American countries, collected and sorted out a large amount of information, and now I can finally serve the motherland. In order to avoid people's eyes, he used various pseudonyms to send these information to well-known scholars and experts in China, Zhao Yurou, one of the pseudonyms he borrowed."

Everyone exclaimed in surprise, but soon turned their eyes from Zhao Yurou to Yang Tianfeng. It turned out that the information they saw was actually collected and sorted out by this young general after great hardships. Now he has contributed it selflessly, which is really admirable.

Xiao Zaoer wrote a letter before coming, but fortunately, the letter arrived earlier than the person. Yang Tianfeng was stunned for a moment and understood the whole story. And this girl rushed over and put the focus on herself, and then deceived and coaxed her sister, right?

She couldn't stop her sisters from recognizing each other while wearing a mask. Zhao Yuqing stood up and stared at her hard, not sure yet. Zhao Yurou had waved at her and called the girl over.

This girl - very tired! Yang Tianfeng sighed secretly. Perhaps this will be the prelude to parting. It is also a good thing to give her a free self and let her reunite with her family, although she feels a sense of loss in her heart.

…………

After the anti-sweeping, the strategic direction of the third column seemed to have shifted again. Immunition and drug resources were transported to the west, and the Chen Detachment and Tong Detachment, which had been through the war, went to rest and replenishment. Guo Detachment secretly transferred west in batches, and the new recruits recruited after receiving Mengcheng also set off to Luyi and Haoxian County, and stepped up training to supplement Yu Yanong's fourth detachment. In addition, the Zhou regiment that was full of troops was soon able to be replenished, and the Western Front was unprecedentedly strong.

After redeploying the military force and formulating corresponding plans, Yang Tianfeng devoted himself to the arsenal and iron smelting plant, and rushed to the Western Front to take charge, striving to make a breakthrough in the production and manufacturing of weapons.

Residents who moved from Sucheng and the people who continued to enter the base from the occupied areas and the Yellow River Flood, which greatly increased the population of the base. In order to make a living, the recruitment of industrial workers and the establishment of family workshops went smoothly when the land was limited.

The pressure of food, the adjustment of defense of the temporary cavalry first division and the bloody battles that were about to be launched around Huaiyang made Yang Tianfeng finally focus his attention on the eastern Henan plain. Now, the strength of the Third Column has been raised to a new level. It is time to compete with the Japanese Cavalry Brigade of Shangqiu and the traitor Zhang Lanfeng.

Fighting the Japanese naturally made Yang Tianfeng feel physically and mentally happy, and the traitor Zhang Lanfeng was also the "transportation brigade leader". If he didn't pinch this soft persimmon, he would not be able to get more weapons and ammunition. Not only did he have to rob, but he had to seize it, Yang Tianfeng also had to blackmail and exchange it with captured puppet army officers.

Of course, in Yang Tianfeng's memory, there will be a bloody battle in eastern Henan, and more than one. He must try his best to prepare, which may be the beginning of the Third Column's frontal combat.

A long cement runway is being built along the mountain, and most people don’t know what Yang Tianfeng is going to do. Even a small number of technicians were initially skeptical that Yang Tianfeng had repaired and used it for actual combat.

But now, the less damaged Tachikawa Jiu-4B reconnaissance aircraft has indeed been repaired in accordance with Yang Tianfeng's guidance and has achieved great results in the manufacturing of metal materials.

A half-shaped wooden and gold mixed main wing, a metal-shaped body made of an air-cooled star nine-cylinder engine (550 horsepower), three (or four) 7.7-mm machine guns, and can carry 50 kilograms of bombs. It has multiple uses such as close-range reconnaissance, combat support and communication for ground troops, making the Type 94 reconnaissance aircraft a treasure on the Japanese front line.

However, Yang Tianfeng was not prepared to repair the aircraft and did not prepare to perform multiple tasks. Since it was a two-seat and a metal-integrated fuselage, it was difficult to transform according to its current technical capabilities. Therefore, he wanted to use this aircraft as a trainer to train pilots.

The bomb rack was removed, and two machine guns were removed. After reducing weight and burden, the aircraft was approaching or exceeding the mobility and work efficiency before repair.

Obviously, Yang Tianfeng's current attention is not on this repaired plane. Although he asked to transfer experienced pilots through the Military Control Commission, he was more interested in the pile of rags collected in the warehouse.

During the Anqing attack, the parts and wreckage of the aircraft collected by the Gui army, the damaged motorcycles seized by the main force and guerrillas during the battle... There are three aircraft engines that can be rebuilt, dozens of car engines, and more than ten motorcycle engines. Yang Tianfeng and his technicians classified and sorted the pile of rags, conducted evaluation and inspection, and assigned repair tasks and guidance to the technicians.

If an aircraft wants to eliminate the threat of Japanese aircraft locally and win a critical battle, it must achieve air superiority as much as possible. This air superiority may not be in quantity, but at least it must not be arrogant with all-purpose reconnaissance aircraft like Japanese.

Although this is a job that is a hundred times more difficult than manufacturing light weapons, it is necessary to start anyway. If the engine cannot be built, then use the Japanese. It is unique in terms of the structure and weapons of the aircraft, as well as reasonable improvements in combat tactics.

Yang Tianfeng certainly would not think about building a complete aviation industry system. Although he could come up with a lot of excellent engines and aircraft drawings, it would be almost a fantasy to do research and development from scratch.

Therefore, he decided to use the information in his mind, use patchwork and improvement to create a few planes, and after the Japanese army fell into the quagmire of the South China Sea, they began to counterattack in the occupied areas.

What's more, Yang Tianfeng has several tricks that can help the Chinese Air Force improve its strength. When Japan's Zero War comes out and the Chinese Air Force avoids war, it is time for him to play his role. Now, he needs to be prepared and prepare in all kinds of ways.

"Sir, can these motorcycle engines build aircraft?" Ou Hantao expressed full doubts about this.

"Super******, it will be very useful to deal with the Japanese in a certain environment." Yang Tianfeng smiled faintly and handed the drawings in his hand to Ou Hantao. "Let the technical team study and manufacture this first. The matter of building aircraft is not urgent, so we have to take it step by step. When the large number of Nanyang mechanics I recruited arrive, it will be the time for great development."

The super **********, which has developed rapidly since the 1970s, is mostly made of aluminum alloy, nylon cloth, light wood, hard foam and other materials. Then it is equipped with a small engine with dozens of horsepower (small aircraft can even use an eight-horsepower engine) to fly. Because the aircraft is light in weight, small in size and simple in structure, many amateurs can complete manufacturing and assembly at home.

The engine of the Japanese devil's motorcycle is a 25-horsepower engine imitating Harley, coupled with Paulownia wood in Henan and the improvement of steelmaking and metallurgy technology in the base area, it is not very difficult to create a super *********.

Of course, the super********* is flying slowly and at a low height, and is easily attacked on the battlefield. However, the use of weapons depends on the environment and timing. For example, in hand-to-hand combat, the spear is more powerful than the 38th cap. Yang Tianfeng wants to create the super*********, which is a secret weapon, which is used suddenly and affects the situation with a fatal blow.

The drawings Ou Hantao got were not an aircraft, but a two-stage two-speed supercharger.

Superchargers are a very common equipment on internal combustion engines. The use of superchargers on aircraft engines in World War II mainly improves the performance of aircraft engines at high altitudes. There are two main superchargers, one is called mechanical supercharger, which, as the name suggests, is to supercharge the supercharger operates through mechanical action; the other is called turbocharger, which drives the supercharger to supercharge by driving the exhaust gas discharged from the engine.

From an advanced point of view, it is naturally that the turbocharger has a good effect and can adapt to all the altitudes that the propeller aircraft can fly to without requiring the engine to provide power directly. However, due to its high temperature, the material requirements are very high, the structure is complex, and the weight is particularly heavy. Moreover, when the engine power drops and the exhaust gas pressure is insufficient, the turbo compressor speed is not enough, which will hinder the intake, thereby reducing the engine output power.

The advantages of mechanical supercharger are that it has a simple structure, light weight, and low material requirements. Of course, it takes a portion of the horsepower to drive the compressor to cause the compressor to suffer from excessive height.
Chapter completed!