Philippe handed over the task of testing the aluminum alloy formula to four engineers from BMW in Germany, and then began to work on the design of the torque converter propeller while coordinating and managing the construction of the plant.

In order to make the new torque conversion propeller suitable for different aircraft, Philip had to design three-blade, four-blade and five-blade torque propellers, of course, six-blade propellers were not used in this era, because the propeller with more than 6 blades was generally used for turboprop engines, and jet engines in this era had not been really developed.

Lucas and Anna became Philip's design assistants. Although Lucas and Philip have worked together for many years, it is the first time that they have discovered that Philip still has these abilities, which makes him often look at Philip with strange eyes, as if he almost didn't know Philip.

Lucas did feel that he was about to lose his acquaintance with Philip, and in the days of Krupp, the two studied weapon design together, discussed processing technology together, and basically did not much difference in the level of weapon design. But now, Lucas is still stuck at the same level, and Philip is not only a big step ahead of Lucas in gun design, which is understandable. But now Philip still understands non-ferrous metal smelting and processing, and the most puzzled thing for him is, when did Philip learn aeronautical engineering design? And as soon as it came up, it was the most complex and sophisticated torque converter propeller and exhaust gas turbocharger, which was something that various aviation powers wanted to develop but never succeeded!

Lucas didn't want to be left far behind by Philip, so he and Anna became big fans when Philip was drawing the blueprints, and from time to time they had to ask questions to learn about aeronautical engineering. Lucas is also a very good weapons designer, and he became completely fascinated by aeronautical engineering as soon as he came into contact with it.

While Philip was drawing, he was still asking for something new from time to time. On this day, Philip was drawing the blade design of the torque conversion propeller, a three-bladed torque reduction propeller in the shape of a saber-shaped blade.

Lucas asked suspiciously, "Philip, these three paddle blades are so strangely shaped, the roots are round, very thick, and the tips of the blades are as thin as blades. Why is that? ”

Philip laughed while drawing: "Lucas, the root you mentioned is called the petiole, which is the thicker part of the propeller near the center of the propeller, and the multi-bladed propeller is usually designed as a hollow cylindrical shape, with multiple screw holes around the perimeter of the cylinder, and the blade can be fixed to the propeller hub through bolts; The tip of the blade refers to the part of the blade farthest from the blade, which is usually defined as the last 6 inches of the blade; From the center of the paddle hub, the paddle is segmented and the outbound station number is determined in inches. Because when the propeller rotates, the tangential velocity of the propeller blades is not the same. The velocity is low at the root of the leaf and the highest velocity at the tip of the leaf. ”

Lucas suddenly realized, "Oh, no wonder the tip of the paddle blade is as thin as a blade. But I see that most of today's airplanes have two blades, and why do we design more blades? ”

Philip laughed: "Of course, because more propellers can improve the aerodynamic efficiency of the propeller, like a reasonably designed six-blade propeller, its aerodynamic efficiency can reach about 0.85, while the ordinary fixed-moment two-blade propeller, the aerodynamic efficiency is only about 0.3." Therefore, the advantages and disadvantages of the two are very obvious, but it is very difficult to design and manufacture multi-blade torque conversion propellers, but it is in this way that we can occupy the technical advantage and slowly strengthen and expand the company. ”

Lucas said curiously, "Philip, I'm curious, how did you learn this?" I think you were like me at the beginning, and you didn't have access to these things at Krupp. Honestly, where did you learn it? ”

Anna also stared intently at Philip, wondering for the answer. Because Philip's recent performance is so eye-catching, he has not only become a guest of Defense Anderson, but also a leader in the German aviation industry, Messerschmidt, and at the same time the honorary editor-in-chief of the Koo's Defense Weekly.

Philip laughed and said, "If I say I learned it in a dream, would you believe it?" Didn't I stay in a coma for a few days after the Krupp trial injury? It was during those few days that I had a strange dream that I had become the owner of one of the largest arms companies in the world, that my company could build planes, tanks, artillery, everything, and I learned that. Now, it's time for you to supplement your knowledge of aeronautical engineering, otherwise you won't know anything when you go out and ask people. ”

Anna glanced at Philip and said faintly: "I don't believe it, who are you fooling!" However, I also have to start working aviation knowledge, or I will really hold you back! ”

Lucas pondered: "Philip, when will our company be able to build an airplane!" Especially fighters, that is really a treasure of the air forces of various countries! The profits must be high, right? ”

Indeed, Lucas was right. In World War II, the United States produced a total of 290,000 military aircraft, while Germany also produced a huge number of combat aircraft, such as the famous BF109 fighter, which produced more than 30,000 of this model alone! What is this concept? At an average price of $100,000 per aircraft, the United States has a $29 billion worth of aircraft sales, and the German BF109 fighter jet is worth $3 billion! You must know that during World War II, the dollar was very valuable, 1 dollar in 1930 was equivalent to 12 dollars in 2010! In 1937, Japan's GDP was only 28 billion US dollars!

It can be said that in the Second World War, the aviation industry became the most profitable industry. And the United States naturally made a lot of money and made a lot of war money, of which aircraft manufacturing became the largest part.

Philip put down the pencil in his hand and said, "Yes, so our future is bright and ambitious, but there are also many difficulties. It is not easy to develop a fighter plane, which requires a large amount of upfront investment and technical reserves. And the torque conversion propellers and turbochargers we are making now are preparing for the production of fighters and even bombers in the future, and our Vulcan cannon is also the most lethal weapon on fighters in the future. ”

In Philip's plan, the first thing to develop is the transport aircraft, and then the fighter, after all, the war has not yet started, and the demand for fighters in various countries is very small, but the transport aircraft can not only meet the needs of air cargo and passenger transport in peacetime, but also become military transport aircraft in wartime, and it is much easier to achieve in technology.