PS: Thank you for the "monthly ticket t-t" voted again

In addition to the purification process, the aircraft manufacturing in the border area, especially the aero engine jishu has also made a major breakthrough, and if you only look at the present, the value may be greater than the progress of the purification process.\\......

When a piston aero engine is operating, the injection of water or a mixture of water and some liquid (most commonly methanol) into the cylinder can significantly increase the power output in a short period of time, up to a third. Although this will shorten the life of the engine, and the effect will gradually decline if it is used continuously in a short period of time in flight, but its significance is still very huge, even if the maximum speed of the design is not as good as the enemy aircraft, there is also the possibility of catching up, and our aircraft can also be quickly eliminated by the same method when being pursued by the enemy, so the aircraft of the North China Air Corps are all equipped with the latest successfully developed engine water jets, which is enough to increase the combat effectiveness of the North China Air Corps by several percent, and the survival rate is doubled......

Hu Weidong remembered that this jishu should have been discovered and applied by aviation experts from all over the world around 40 years ago, so the advantage of the North China Air Corps would definitely not last long, but since the little devil didn't know this trick now, he would make a day when he was cheap. Besides, even if the devil will, we will be better than not, right?

When he first went abroad, Hu Weidong attached the most importance to the talents of engines, especially aero engines, so both the quantity and average quality were quite good, but there were no Shijie-level masters in the piston engine project team, and they came from different countries. Even some people do not understand each other's language and have to rely on translators to talk to each other, which inevitably reduces work efficiency. As for Hu Weidong, although he came from later generations, he was not an aviation expert after all, except for the water spray and the like, and he happened to remember the points that he had accidentally memorized back then, and he could not help much in terms of design. Therefore, there is still a certain gap between the R&D capabilities of the "Piston Engine Project Team of the Aviation Department of the Central Plains Border Engine Research Institute" and the top aero engine manufacturers such as Rolls-Royce and Hewlett-Packard......

However, some of the material formulas and processes in Hu Weidong's mind can come in handy, although most of the alloy steel grades he remembers are used in artillery and armor. However, because the overall performance is much stronger than the materials of the World War II period, the cameo is still somewhat stronger than the aero engine materials selected by the current powers, and the increasing number of materials in the border area in the past two years scientists have also developed some more suitable derivative alloy steel materials according to the needs of various engines on the basis of these materials......

You must know that the material Jishu is the biggest limiting factor for the progress of the engine, so even if you do not consider the jet engine projects that have made some progress so far, just looking at the piston engines used by aircraft in various countries, Hu Weidong also believes that China's aero engine Jishu will definitely catch up with or even surpass the powers, and there should not be too long to wait. Because after more than a year of running-in. These engine experts from more than a dozen different countries have been successfully integrated into a team, and although the power of their first aero engine is only 900 horsepower, it has reached the advanced level of Shijie in terms of fuel consumption, high-altitude performance (even without the help of turbocharging devices), reliability and service life, which has surpassed the level of the Soviet Union and Japan in general, and compared with Germany and France, it has its own merits, and only a little worse than the engines of Britain and the United States. But even so. Since the J-1 and H-1 in the design are based on the classic models in the middle and late stages of World War II, the requirements for engine power are very high, so there is no suitable heart for the time being, and the first flight can only be postponed.

After the seizure of 300 devils' latest aero engines in Qingdao, Hu Weidong, a layman, was known for his large power. It is recommended to use the devil's engine to complete the first flight first to save time as much as possible. Regardless of whether this requirement is reasonable or not, a dispute between "air-cooled" and "liquid-cooled" aero engines broke out......

Hu Weidong knew before crossing that the Merlin engine of the British Rolls-Royce Company was the most comprehensive performance piston engine during World War II, and the long-term prosperity of the Rolls-Royce Company (although it was once bankrupt after the war and was acquired by the British government, Jishu Rolls-Royce Company has always been ahead of Shijie. He was even more impressed, so during his time abroad, he regarded Rolls-Royce's talents, even those that were eliminated, as treasures, and offered a much higher price than other companies, but not to mention that the income imbalance would make others blush, there was also a serious problem on Jishu......

During World War II, Britain's aero engines were mainly liquid-cooled, and the Merlin engine was the king of them, but the United States was unique in air-cooled aero engines, and because of the large number of American engine companies, it was much easier to poach people in the United States than to start with a large Rolls-Royce company in the United Kingdom, so the number of American experts was more than twice as many as that of other countries combined, which caused a contradiction, and the engine experts from Rolls-Royce in the project team had the highest status. They naturally want to work on liquid-cooled engines that they are good at, but they are few people, and most of the experts in the project team are engaged in air-cooled engines before coming to China, which leads to direct differences. At first, due to Hu Weidong's support, Rolls-Royce's expert status was very high, so the early models of both aircraft were scheduled to use liquid-cooled engines, but after the successful test flight of the engine equipped with the devil this time, those jishu personnel finally couldn't help but get angry, because the devil's engine was air-cooled!

"Since an air-cooled engine can meet the needs, why should we choose an expensive and not so reliable liquid-cooled engine? Moreover, the air-cooled engine has low process requirements, fast production speed and great improvement potential, which is obviously more suitable for China's national conditions, and the survivability of aircraft using air-cooled engines is relatively strong, and it is also more suitable for the current situation of scarcity of pilots in China. ", said a young engineer from Hewlett-Packard in the United States.

Thomas, the chief engineer of Rolls-Royce in the United Kingdom, insisted that the cylinders of liquid-cooled engines are arranged in a narrow shape, the windward cross-sectional area is smaller than that of air-cooled engines, and the drag generated by the fuselage is relatively low, so the speed is faster, especially at high altitudes, and the ceiling of the aircraft using liquid-cooled engines is significantly higher than that of air-cooled......

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