After all, the use of metal as an aircraft material is an inevitable result of the development of the aviation industry. It is difficult to withstand large overloads, and the wooden body with poor sturdiness and durability is also an inevitable trend. The Soviets used wood to build aircraft because of the lack of qualified aluminum alloys for the aviation industry in sufficient quantities. and the recognition that the aircraft is just a consumable, and that the cost of mass production should be reduced as much as possible.

The reason why the Anti-United Nations still used wood at the beginning was mainly because the amount of aviation aluminum used in the United States was insufficient, and it could only be used in the production and manufacture of bombers, and the Anti-United Nations could not refine its own aluminum products.

This Yak-9 fighter is still designed in accordance with the Soviet Union, with steel pipes and canvas as the main structure of the fuselage, and mainly wooden wings. The same is true of the Il-2 attack aircraft manufactured by the Anti-United Nations, with the rear half of the fuselage made of wood. It's just that unlike the Il-2 wings produced by the Soviet Army in the later period, which are all wooden, the Il-2 wings manufactured by the Anti-Union are still made of aluminum.

However, after the recovery of Fushun, the Anti-Japanese Federation immediately mobilized manpower to resume production at the Fushun Aluminum Plant, which was destroyed in the operation of the harvester in the shortest possible time. And through the production of the B 24 bomber and the C 47 transport aircraft, after mastering the process of making aircraft from metal. The Yak-9 fighter and the Il-2 attack aircraft were all changed to metal structures.

So this group of carpenters did not produce airplanes for a long time, but it was enough for these people to have the capital to boast about in a few years. Even though they didn't know what they were doing the carpenter work for. All they know is that the wood was very hard and the craftsmanship required was very high, and it was not that the veterans could not meet the needs at all.

But in any case, these carpenters made a considerable contribution to the production of these two aircraft. It can even be said that without the participation of these old carpenters, the time for the production of these two aircraft may be far away. After all, the aircraft drawings are available, and although the engine is also in stock, this does not mean that the aircraft can be put into production immediately.

From design to manufacturing, an aircraft requires not only design capabilities, but also production capacity. The manufacturing process level of the anti-union is too low, if it is all made of metal aluminum, even if the Americans can meet the needs of aluminum alloy for aviation, I am afraid that it will not be able to produce it with four or three years of anti-union technical capabilities.

The real formation of all-metal aircraft production capacity of the Anti-Japanese Union was after the return of the third and fourth batches of workers who went to the Komsomolsk Aircraft Factory in Amur of the Soviet Union for further training. And after the Americans transferred the B24 bomber manufacturing technology to the Anti-United Nations, the Anti-United Nations formed its own all-metal aircraft manufacturing capacity.

But the Americans have always controlled the quantity of aluminum aid for aviation. That is, you can build B24 bombers, but you can strictly limit the number of bombers you can produce. The production and manufacturing technology and process standards of aluminum alloy products for aviation are strictly blocked by the United Nations. Even if you have the technology, you can't produce an airplane because of the lack of raw materials.

For the request of the Anti-Union to order 12,000 tons of forging die hydraulic press, it refused without hesitation. However, it was discovered that the anti-union had absorbed the technical capabilities quickly, and the manufacturing technology of these two aircraft was mastered in a short period of time. And relying on the workers and equipment rushed out from South Manchuria, they are seizing the time to build their own aluminum alloy factory.

Its aviation industry, from the upstream to the downstream system construction, has begun to form a complete prototype. Although this prototype is still quite young, most of the factories have not yet been put into production. However, the Americans, who felt that it was likely to cause trouble for their own China policy, immediately tightened their grip and did not transfer any aviation and power technology to the Anti-United Nations.

Not only the technology involved in the aviation industry, but also the transfer of non-ferrous metal smelting, special steel smelting, and even oil extraction technology, has gradually begun to shrink in scale. In addition to oil exploration and drilling equipment, as well as coal mining equipment, the rest of the industrial equipment is always provided on top of strict control.

And after the Japanese officially announced their surrender, the confrontation between the Anti-Japanese Union and the American troops who landed in Japan, and the incident of the remaining ships of the Japanese Navy. The Americans immediately demanded that all the more than two thousand specialists and technicians working in the Northeast immediately leave the Northeast and return home. Its orders and attitudes are so tough that they are almost unmatched in American history.

The U.S. government has warned those experts and technicians who come to work in Northeast China that they will be severely punished by expulsion if they do not leave China within a month. Those Chinese students in the United States who come to work in Northeast China will not be allowed to step into the United States for the rest of their lives if they refuse to return to the United States or return to Chongqing.

At the same time, it demanded that the Anti-Japanese Federation and the secret representative of the Northeast People's Government in the United States immediately leave the territory of the United States. Restrictions are on the return of Chinese students studying in the United States, whether they are to the nationalized areas or to base areas behind enemy lines. All U.S. companies are strictly prohibited from exporting any industrial equipment to Northeast China and North China.

It's just that by this time, it will be too late for the Americans to tighten the once open mouth. At the beginning, I always thought that even if the Chinese had a full set of drawings for these two aircraft, with the technical ability of the Chinese, it was definitely not the Americans who could really master the manufacturing technology in a short period of time, and underestimated the Chinese.

I don't know how determined Yang Zhen, who single-handedly planned this, is in his heart. When the imitation Grayback Falcon engine was the most difficult, and many people even wanted to give up, Yang Zhen personally talked to those fledgling technicians and encouraged them to carry out all the plans.

When there was a problem in the production technology of the aircraft, Yang Zhen sent a large number of workers to the Soviet Union to learn the aircraft manufacturing process by means of free labor export. At any cost, a large number of students were selected to study aeronautical engineering in the Soviet Union. It even took a lot of money to get a large number of German prisoners of war from the Soviets.

Although at the time when the Americans transferred these two aircraft manufacturing technologies, the students who stayed in the Soviet Union were just beginning to return to China one after another. However, the Chinese, who have already laid the foundation, are no longer only at the stage of assembling aircraft parts, but have begun to master the technology and technology of aircraft manufacturing one after another.

At the same time, by imitating the Grayback Falcon 27 engine used in the Hurricane-4 fighter, it mastered the advanced engine manufacturing process of the West. It is precisely with these foundations that the Anti-United Nations was able to absorb the manufacturing technology of these two aircraft in the shortest possible time and initially have the production capacity of large aircraft.

Even if the Americans rejected the request of the Anti-Union to order a 10,000-ton forging die hydraulic press, the 12 forging die hydraulic presses of 1,000 to 5,000 tons imported before gradually solved the problem of forging components required for the manufacture of large aircraft. By the time the Americans remembered to tighten their mouths, it was too late. Although the bones of the body are far from being tough, the wings that took off soon after a while have already grown.

As for the carpenters who made corresponding contributions to the production of aircraft for the Chinese themselves, Yang Zhen did not forget them. Although they could not be given too high salaries, they were given great honors. After all these people withdrew from the front line of aircraft manufacturing, the Northeast People's Government issued a first-class Red Flag Construction Medal and a third-class special model worker medal to all these people.

These two medals and medals are specially designed and established by the Northeast Bureau to award workers who have made outstanding contributions to industrial and agricultural production and construction. The Red Flag Medal of the First Class is the highest among the medals, and although the Order of the Model Worker of the Third Class is the lowest level among the medals, the number of awards is not very large.

These medals and medals are given special treatment to these special groups of people, who are the cornerstone of China's aviation development, after consultation with the Northeast Bureau and the Northeast People's Government. In recognition of their due contributions to the development of China's aviation industry.

At present, for Yang Zhen, the most important thing is to consolidate this most basic foundation. No matter what the future will become, this foundation must be laid now. Therefore, after the end of this battle, the Anti-Japanese Union will take a defensive position for a long time to recover its vitality.

Throughout the second half of '42 and the first half of '43, Yang Zhen focused his energies on the expansion of the troops, the adjustment and replenishment of personnel, and the manufacture and renewal of equipment. A large part of the energy has been put into the rectification of the aviation industry and the military industry, as well as the formulation of sustainable development strategies.

Although the Americans did not provide much equipment, they basically met the requirements of the Anti-Japanese Federation in the supply of military raw materials and equipment at this stage. In addition to heavy bombers, the Anti-Union changed a large part of its share of aid to machinery and equipment. This is exactly what the Americans who have been frustrated by the successive protests in Chongqing are happy to see.

The Americans really put away their mouths after discovering in early April or five that the Chinese had completely mastered the technology of manufacturing B24 bombers. As for the four or three years and the four or four years, the Americans are far from being so tight in terms of industrial equipment and the transfer of some technology.

Improving the anti-alliance's own military manufacturing capacity as much as possible and strengthening its own hematopoietic function during the war will undoubtedly greatly reduce the pressure on the United States in diplomacy. This period lasted until the second half of the fourth year, and although the United States was a little slower in terms of industrial equipment and technology transfer, and did not fully follow the agreement, it should be said that on the whole it was relatively generous.

Combat equipment is mainly concentrated in tanks and various tactical aircraft, and equipment such as artillery that is really used for infantry is dispensable. And Yang Zhen is naturally optimistic about the Americans' approach. The three-handed equipment obtained from the Soviets, although it was three-handed, was enough to deal with the Japanese.

To also occupy a share, then it is better to put the main project on industrial equipment. As long as the Soviets could provide enough German loot, he did not care about the default of the Americans in equipment. He knew that it would be a matter of time before he turned his face with the Americans, and it was still more appropriate to take this opportunity to get more machinery and equipment than in the Northeast.

Although he was quite dissatisfied with the consequences of Yang Zhen's actions as a harvester. But for those skilled workers, the Northeast Bureau and the Northeast People's Government are still welcome. After eliminating some unreliable workers, the remaining large number of workers played a huge role in the industrial construction of Northeast China.

Just as Yang Zhen judged at the beginning, although there are not many skilled workers in this group of skilled workers, it has alleviated the shortage of qualified workers in factory construction, and the speed of training cannot catch up with the gap in factory construction. After the arrival of these workers, the automobile and tank manufacturing industries, which had been unable to produce qualified products, developed greatly.

In particular, the tank and aircraft manufacturing industry, the workers who were rushed out of the Mukden Nanman Aircraft Company and the 918 Tank Overhaul Plant solved the big problem. The first tanks of their own manufacture and the first aircraft of their own manufacture by the Chinese were produced from these people.