Don't forget the national shame 918, love the country and love the family. Pen, fun, pavilion www. biquge。 info

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A breakthrough in theory will inevitably lead to a pioneering spirit in practice. Once polymer chemistry is truly established, new materials such as man-made fibers, cellophane, polyvinyl chloride and polyethylene will soon follow.

Nylon, in particular, can be used to make gears, bearings and medical sutures, or to produce parachutes, military tents, aircraft tire cord fabrics, military uniforms and other military products.

Yang Tianfeng thought very far, although it may take a long time to achieve, but even if it was not used during the Anti-Japanese War, it is a gratifying good thing for the country and the nation to make achievements in organic chemical industry.

"The coal chemical industry can extend so much and so deeply," Zhang Dayu and others sighed, and Miao Yuntai was even more excited about this bright prospect.

It stands to reason that there is no place for Zhao Yuqing to interject and speak here, but this girl never plays cards according to common sense, and asked curiously with big eyes: "General Yang, how do you know so much?" Although it is very simple to say, I feel that there are many things that you don't have time to say, but you don't have time to say it, and you don't want to say it. ”

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

"When General Yang traveled in Europe, he used various disguised identities, such as beggars, students, workers, swingers, ......" Suddenly, a voice sounded, Zhao Yurou appeared wearing a mask, and said lightly but clearly: "Extensively spying and learning the advanced technology of European and American countries, collecting and sorting 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 materials to well-known scholars and experts in China, Zhao Yurou, which is one of the pseudonyms he borrowed. ”

Everyone let out a sound of surprise, but soon turned their eyes from Zhao Yurou to Yang Tianfeng, it turned out that the information that everyone saw was actually collected and sorted out by this young general after a lot of hard work, but now he selflessly contributed it, which is really admirable.

Little Soap wrote a letter before she came, and luckily the letter arrived earlier than the person. Yang Tianfeng was just stunned for a moment, and then he understood what was going on. And this girl, hurried over, put the focus on herself again, and then deceived and coaxed her sister, right?

Wearing a mask can't stop the sisters from recognizing each other, Zhao Yuqing stood up and stared hard, not quite sure, Zhao Yurou had already waved at her and called the girl over.

This girl is very tired! Yang Tianfeng sighed secretly, maybe this would be the prelude to parting. It's also a good thing to give her a free body and let her go to reunite with her family, although there is a sense of loss in her heart.

…………

After the end of the counter-sweep, the strategic direction of the three verticals seems to have shifted again. Ammunition and materials were transported to the west, and the Chen detachment and the Tong detachment, which had passed through the battle, entered the rest and replenishment. Guo's detachment was secretly transferred westward in batches, and the recruits recruited after receiving Mengcheng also went to Luyi and Haoxian, stepped up training, and supplemented Yu Yanong's four detachments. Coupled with the fact that the Zhou regiment could soon be replenished, the strength of the Western Front was unprecedentedly strong.

After redeploying the military and formulating the corresponding plan, Yang Tianfeng threw himself into the arsenal and the ironworks, and seized the short time before rushing to the Western Front to take up the town, and strive to make a breakthrough in the production and manufacture of weapons.

The residents who moved from Sucheng and the people who moved from the occupied areas and the Yellow Flood area continued to enter the base areas, resulting in a large increase in the population of the base areas. In order to make a living, the recruitment of industrial workers and the establishment of family workshops went smoothly with limited land.

The pressure of food, the adjustment of the temporary cavalry division and the series of bloody battles that were about to start around Huaiyang made Yang Tianfeng finally focus his attention on the eastern Henan Plain. Now, the strength of the three columns has been raised to a new height, and it is time to compete with the Japanese cavalry brigade in Shangqiu and the big traitor Zhang Lanfeng.

Fighting devils naturally made Yang Tianfeng feel physically and mentally happy, and the big traitor Zhang Lanfeng was still the "captain of the transportation brigade", if he didn't pinch this soft persimmon, he wouldn't be able to get more weapons and ammunition. Not only did he have to rob it, but he also wanted to seize it, and Yang Tianfeng also had to blackmail and exchange it for the captured puppet army officers.

Of course, in Yang Tianfeng's memory, Yudong will be a bloody battle, and there will be more than one. He had to be as prepared as possible, and that might be the beginning of a frontal battle in the three columns.

A long cement runway was being built along the mountain, and most people did not know what Yang Tianfeng was going to do, and even a small number of technicians were initially skeptical that Yang Tianfeng would repair the captured Liuchuan 94B reconnaissance plane and use it in actual combat.

Now, however, this lightly damaged Tachikawa 94B reconnaissance plane has indeed been repaired in accordance with Yang Tianfeng's guidance and under the guarantee that great achievements have been made in the manufacture of metal materials.

The one-and-a-half-blade wood-gold mixed main wing, made of metal integral body, air-cooled star-shaped nine-cylinder engine (550 horsepower), three (or four) 7.7mm machine guns, can carry 50 kg of bombs. It has multiple purposes such as close reconnaissance, combat support and liaison with ground troops, making the Type 94 reconnaissance aircraft a treasure on the front line of the Japanese army.

But Yang Tianfeng repaired the plane and was not prepared to make it perform multiple tasks. Since it is a two-seater and a metal body, it is difficult to transform it according to the current technical capabilities. So, he wanted to use this aircraft as a trainer aircraft to train pilots.

The bomb racks were dismantled, two of the three machine guns were dismantled, and the aircraft after weight reduction and load reduction approached or exceeded the movement and work efficiency before the repair.

Obviously, Yang Tianfeng's current attention is not on this repaired plane. Although he passed the military command and asked for experienced pilots, he was more interested in the pile of rags collected in the warehouse.

Aircraft parts and wreckage collected by the Gui army during the Anqing attack, and broken motorcycles captured by the main force and guerrillas during the battle...... There are three aircraft engines, dozens of automobile engines, and more than 10 motorcycle engines that can be restored. Yang Tianfeng took the technicians to classify and sort out the pile of rags, conduct evaluation and testing, and assign repair tasks and guidance to the technicians.

In order to eliminate the threat of devil planes in a local area and win a key battle, it is necessary to achieve air superiority as much as possible. This air superiority may not be numerical, but at least it is necessary to make the all-purpose reconnaissance aircraft of the devil's kind not arrogant.

Although this is a task a hundred times more arduous than the manufacture of light weapons, no matter how difficult it is, it must be started. If the engine can't be manufactured, then use the devil's one, and the structure and weapons of the aircraft are unique, as well as the reasonable improvement of combat tactics.

Yang Tianfeng will definitely not think about building a complete aviation industry system, although he can come up with a lot of excellent engines, aircraft drawings, but engines, instruments, electrical, testing equipment, etc., to start research and development from scratch, it is almost impossible to do so.

Therefore, he still decided to use the information in his head, use patchwork and improvement, make a few planes, and start a counteroffensive in the occupied area after the Japanese army fell into the quagmire of the South Seas.

What's more, Yang Tianfeng still has several tricks that can improve the strength of the Chinese Air Force, and when Japan fights zero, the Chinese Air Force avoids the war, which is the time for him to play a role. Now, he's going to get ready, all sorts of preparations.

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

"Super ********, in a certain environment, it will be very useful to deal with devils." 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 an aircraft is in a hurry, we have to take it step by step." When a large number of Nanyang mechanics I recruited came, it was the time for great development. ”

Since the 70s of the twentieth century, the rapid development of super******** is mostly composed of aluminum alloy and nylon cloth, balsa wood, hard foam and other materials, and then installed with a small engine of tens of horsepower (small aircraft can even use an eight-horsepower engine) can fly. Due to the light weight, small size, and simple structure of the aircraft, many amateurs in later generations were able to complete the manufacture and assembly at home.

The engine of the Japanese devil's motorcycle is a 25-horsepower engine that imitates Harley, coupled with the paulownia wood in the Henan area, and the improvement of steelmaking and metallurgical technology in the base, it is not very difficult to make a super ********.

Of course, super******** flies slowly, at low altitudes, and is vulnerable to attack on the battlefield. However, the use of weapons depends on the environment and timing, for example, in white-knuckle combat, the spear is more powerful than the 38 big cover. Yang Tianfeng wants to create a super ********, which is used as a secret weapon, which is used suddenly, and affects the battle situation in a fatal way.

The blueprint that Ou Hantao got was not an airplane, but a two-stage two-speed supercharger.

Superchargers are a very common device in internal combustion engines, and the use of superchargers in aircraft engines in World War II is mainly to improve the performance of aircraft engines at high altitudes. There are two main types of superchargers, one is called mechanical pressurization, as the name suggests, it is pressurized by the supercharger driven by mechanical action; The other is called turbocharging, which uses the exhaust gases from the engine to drive a turbine to drive the supercharger for supercharging.

From the point of view of the degree of advancement, it is natural that the effect of turbocharging is good, and it can adapt to all the heights that the propeller aircraft can fly to, and does not need to be directly powered by the engine. However, because of 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 air and reduce the engine output.

The advantages of mechanical pressurization are simple structure, light weight, and low material requirements. Of course, it eats up some of the horsepower to drive the compressor, which can drag down the engine output if the altitude is too high.

Therefore, the same combination of engine and supercharger will bring different results in the details, and it cannot be said that turbocharging is necessarily better than mechanical supercharging. (To be continued.) )