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Chapter 2366 The Secret of B29

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    For the Soviets, this aircraft was quite shocking.  But to Cochrane, the aircraft was nothing short of ordinary.

    Cochrane knew about the existence of this aircraft when it was still being developed.  As soon as the plane was manufactured, it was changed to an aerial tanker, and then it was almost Cochran's special plane.  She has flown at least hundreds of sorties on this kind of aircraft, so she is quite familiar with it.

    Gromov on the side has already started to ask Cochran some questions.

    "This plane is said to be able to transport nine tons of ammunition and fly over 10,000 kilometers. Is this data true and reliable?"

    Cochran shook his head: "Of course not. The nine-ton bomb load refers to the maximum amount of ammunition that can be transported in his bomb bay. In this case, the amount of fuel carried must be reduced, otherwise it may  The take-off weight is too large, and it will not be able to fly at that time. At the time of the maximum bomb load, the range of the aircraft is only more than 3,000 kilometers, so when flying long distances, generally only about three tons of bombs are hung. "

    In this era, no aircraft could carry nine tons of ammunition.  So the b29 bomber is called a bomb truck, which is worthy of the name.

    However, it is impossible to achieve the maximum range and the maximum ammunition load at the same time.  Hearing Cochrane's words, the people present nodded with relief. If the American bomber could really fly a distance of 10,000 kilometers with nine tons of bombs, it would be terrible.

    While talking, everyone has already walked towards the cockpit, and when passing under the wing, Tupolev said: "The engine of this aircraft is relatively advanced, but I don't know how the heat dissipation of this engine is.  "

    The larger the aircraft, the larger the engine required and the greater the technical difficulty.  If Tupolev wants to imitate this aircraft, he must imitate it together with the engine.  And everyone knows in their hearts that the technology of the Soviet Union is still quite different from that of the United States.  So they were a little worried, wondering whether the imitated engine could meet the requirements.  The most important thing is that this imitated engine will not have the problem of overheating.

    In the field of aero engines, the problem of overheating has always existed, which has troubled many aircraft designers, and there are various solutions.

    Unlike the engines used in automobiles, aircraft engines often use the layout of star-shaped air-cooled engines.  This engine is in the shape of a disc with countless cylinders on the outside, forming this unique layout.  No matter how you look at it, it is symmetrical, so that you can get the best heat dissipation effect

    However, the power of this engine cannot be increased without limit. In order to further increase the power of the engine, a designer will connect two such engines in series to form a larger engine, so that the output power will be  The original engine is twice as large, but the environment of the rear cylinders is very harsh, and overheating problems will also occur.

    Hearing what Tupolev said, Cochrane glanced at Qin Baoshan meaningfully. This action surprised Tupolev very much.

    Qin Baoshan touched his nose, and then said: "I helped solve the heat dissipation problem of this cylinder."

    As soon as these words came out, Tupolev immediately looked at Qin Baoshan with incredulous eyes. He didn't expect Qin Baoshan to be so capable and able to find ways to help solve the problems.

    No wonder Qin Baoshan shines everywhere in the United States, he really has a few brushes.

    "In the past, during the trial production, the engine of this aircraft had always faced the problem of overheating of the rear exhaust cylinder. Later, Factory Director Qin solved this problem in a simple way, which was unanimously approved by the engineers." Cochrane said  : "Qin is a very powerful person, his mind is always full of all kinds of wonderful ideas."

    Cochrane and Gromov walked into the cockpit. At this time, Tupolev on the ground was still surprised by this incident, listening to Qin Baoshan explain how to solve the problem of engine overheating.  He couldn't help feeling very emotional, Qin Baoshan was indeed powerful enough.

    So after Qin Baoshan finished talking about it, Tupolev finally asked for help.

    "We now want to map and imitate this aircraft, but we have encountered a big problem. The skin of this aircraft is very thin, and our own technology cannot produce this level of aircraft skin.  I don¡¯t know if you have a good solution for surveying and mapping imitation.¡±

    Not to mention the problem of how to map and imitate those complicated engines, even such a simple small problem will make them burnt out.

    The industrial base of the United States is very developed, so the aluminum they produce by themselvesGold can be made to a very precise thickness.  However, the aluminum alloys produced in the Soviet Union do not have this strength. They may be able to make them so thin, but the quality cannot be controlled. Specifically, the thickness varies.

    The aircraft skin looks simple, but it has also become a stumbling block in front of them.

    They tried to improve the production quality of domestic aluminum alloy skin products, but it seems that the effect is not significant now, so since Qin Baoshan is so capable.  Tupolev wanted to see if Qin Baoshan could do anything.

    Hearing Tupolev's question, Qin Baoshan smiled.  Of course he knew about this problem. After all, the Soviet Union imitated the B29 bomber, which was a very famous event during World War II.  The imitated Figure 4 bomber is also called Sky Fortress, just to tease the relationship between this bomber and the B29 bomber.

    Many interesting things in the imitation of surveying and mapping have also been circulated, among which is the question of how to imitate the aircraft skin.  Hearing Tupolev talk about this problem at this time, Qin Baoshan certainly has a ready-made solution.

    "First of all, we can select a part of the aircraft skin that we are producing with uniform thickness, and then measure the thickness of this part. According to the size of the thickness, divide them into two or three types, and then calculate the surface part of the aircraft. Those  Thick aircraft skins should be used for those that require high endurance, and thin aircraft skins should be used for those with low endurance, so that the resulting bomber should not be much heavier than the original bomber.¡±

    The Soviets could not control the output of such thin aluminum alloy skins, but they could at least classify the aluminum alloy skins they produced, some of which were thin and some of which were thick.  Depending on the thickness, it can be used in different places.

    In this way, the problem can be solved in this rough way.

    Hearing Qin Baoshan's words, Tupolev's eyes suddenly brightened.  In this way, the problem can be easily solved. This method is really ingenious, why didn't I think of it?  (Remember the site URL: www.hlnovel.com
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