Chapter Seventy-Two: A New Machine (I)
The Japanese Air Force suffered a big loss at the hands of Jiang Tao last time, and Jiang Tao also knew that it was the Japanese Army Aviation that was careless, and there may not be such good luck in the future, the previously developed "Young Eagle" fighter. Pen × fun × Pavilion www. biquge。 info is more for the accumulation of technology, and now with the talent transfusion of teachers and students of Northeastern University, it is time to develop a new type of fighter.
Now Jiang Tao has accumulated a lot of experience in engines after continuously developing a number of engines, and considering the Type 91 and Type 92 fighters that Japan is about to reequip in Northeast China in history, it is estimated that the "Young Eagle" fighters on his side will not be able to cope with it. The development of a new fighter was quickly put on the agenda.
In view of the rapid accumulation of new engine manufacturing and design experience, as well as the development of material metallurgy technology led by Wenda, the engine technology has been rapidly improved, such as changing the original vaporizer to a direct injection injector, yes, the fuel droplets sprayed become smaller, and the combustion becomes more adequate when combusting. The reliability and maintenance of the piston engine have been greatly improved.
In addition to these, with the substantial development of the petrochemical industry, it has been found that adding toluene to gasoline can improve the anti-knock (i.e., octane number) of gasoline combustion, so that the octane number is increased to about 115-145, and the pressure ratio before combustion is increased from the original 2.5-3 to 7-8. At the same time, the fuel consumption under the corresponding horsepower is also greatly reduced.
As for the fuselage materials, Jiang Tao, who has accumulated a few months, has exchanged a 3,000-ton free-forging hydraulic press and a 1,000-ton free-forging hydraulic press and two 5-ton steam hammers, which can be said to have completely solved the processing problem of aircraft fuselage materials and parts.
Now, Jiang Tao asked Hu Jun to take some students from the School of Engineering of Northeastern University to start the development of a new engine, and as for the fuselage design, Jiang Tao himself took command and led some students from the School of Science together with Feng Jintang to start pondering.
"I said, Jiang Tao, let's play monoplane this time. I estimate that Hu Jun's engine should be able to get the power to more than 500 kilowatt hours, now the speed of our aircraft will be greatly improved, the triplane is not very suitable for our high-speed design, our aircraft must use a monoplane design, otherwise I'm sorry Hu Jun They want to make the engine is not. "Feng Jintang has been dissatisfied with the last triplane for a long time.
"Okay, this time we will engage in monoplanes, this time we will not only engage in monoplanes, but also all-metal aircraft, and catch up with the international leading level at one time." Jiang Tao waved his hand, he knew that now the smelter had come up with a lightweight aluminum alloy, and the invention of this aluminum alloy was still an accidental product made by Wenda when he developed aluminum oxide technology last time, and he could use it this time.
"Ah, just make all-metal, we don't have any experience in making all-metal aircraft, isn't this step a little too big, we have to eat one bite at a time, let's get some metal first." Feng Jintang was also taken aback when he heard Jiang Tao say this, but he didn't expect Jiang Tao's thoughts to suddenly become so radical, and he couldn't help but persuade him.
"It's okay, let's do this first." Jiang Tao, who held the system in his hand, was not worried at all, and he couldn't exchange it for a ready-made design by himself.
In this way, Jiang Tao watched Feng Jintang take the students to develop a new fighter fuselage, not to mention, Feng Jintang is worthy of being a high-achieving student who came back from France, and he came up with his own design in a few days, but the aircraft he designed still did not get rid of the shadow of the biplane in appearance, not like the slender shape of the fighter of later generations, but a short and thick fuselage shape, more like the Il-16 fighter designed by the Soviets, Jiang Tao sentenced this fighter to death at a glance, Historically, the Il-16 has always had the shortcomings of difficult handling, easy to fall into a spiral with poor longitudinal stability during a sharp jump, and so on, although the speed and horizontal maneuverability are quite satisfactory, but several test pilots have come to the conclusion after the test flight that "this is a fighter suitable only for skilled pilots". This is not suitable for Jiang Tao who does not have a mature Air Force Academy, what he needs is a fighter that can quickly form combat effectiveness, not a fighter that is only suitable for old pilots.
After repeated comparisons, Jiang Tao set his sights on the famous German Messerschmitt BF-109 in World War II as the design template of the aircraft, but unfortunately found that the BF-109 uses a V-type engine, although the air shape of the BF-109 is really good, but the cross-sectional area of the star engine is much larger than that of the V type engine, so it is difficult to copy it rigidly, and directly transform the position of the nose engine, but Jiang Tao found another model that has been tested in actual combat. It was also a fighter P-43 fighter that fought against the Japanese invaders on the land of China.
"I said, Uncle Feng, why don't we raise the landing gear, so that we can reduce the wind resistance, and also, can we make the fuselage design more slender, and this cockpit can also be made full of glass." Jiang Tao put forward his opinion to Feng Jintang.
"I said that you kid really doesn't have a backache when you stand and talk, you don't know how to change it, but don't forget, you kid, you want to use an all-metal fighter jet, this dead weight is not a joke, and, you said that the cockpit is fully covered, I ask you, how did we cover the cockpit with glass, so how did the pilot get in." Feng Jintang was still very dissatisfied with Jiang Tao's overturning of his design.
"That's right, we can make the front and rear windshields on the cockpit streamlined, and then add a sliding cover on the rear windshield, after the pilot enters the cockpit as before, as long as the cover comes up, won't it become full coverage?" Jiang Tao explained according to the design of the sliding cockpit cover of later generations.
"Hmph," Feng Jintang made two nasal sounds, "You think this cockpit canopy is as easy to do as you speak, not to mention whether our glass transmittance meets the requirements, it's your sliding hatch, in order to maintain strength, you have to add several strips of metal to reinforce, so it will block the field of vision." I'll ask you if the fighter pilot's vision is important. Feng Jintang knocked Jiang Tao's idea back into his stomach at once, the problem was that what Feng Jintang said was really reasonable, and Jiang Tao had no way to refute it, so he had to swallow it.