Chapter 2320 The Tragic Japan Airlines

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How should I put it, since the aero-engine was born, no matter in this plane or in history, the aero-engine of the British was first-class and half-first at the worst time.... Even if the time period is after the Cold War! And what about Japan? At least from the current point of view, Japan's high-performance aero engines are still completely in the stage of assembling incoming materials! That’s right, it’s just assembly, not even the processing of supplied materials. To put it bluntly, you give the Japanese complete cylinders, fuel supply equipment, and cooling equipment that they can assemble, but if you give the Japanese spark plugs, fuel Nozzles, bearings, etc., then they don't fit together well....

It's not that the Japanese have tried hard, but their ideals are full and their reality is very skinny. They want to imitate the British engine. Considering that the liquid-cooled engine has the advantages of relatively small resistance and good heat dissipation, the structure is more complicated and the damage resistance Relatively poor. Therefore, the Japanese chose to imitate the air-cooled engine with a relatively simple and solid result. You must know that the first engine imitated by the Japanese in history was Bristol's Saturn engine, which is an air-cooled engine. Is this the right choice? It is correct from an industrial point of view and technically, but in fact, the choice of the Japanese has pitted themselves!

The performance of the engine first imitated by the Japanese is not particularly good, it is the British Clerget 9B 9-cylinder star-type air-cooled engine. To be honest, the performance of this engine is really not good. This engine weighing 173KG has only one horsepower. Output, the maximum engine speed is only 1250 revolutions per minute, and the power-to-weight ratio is only. It's one of the worst engines in the UK.

To be more powerful, for example, the liquid-cooled engine of the British is not heavy, but the output is as high as 450 horsepower! The speed also reached 2000 rpm! The power is even more powerful than Gundam! The latter is clearly the British engine's laurels! The former is actually a low-grade product!

When choosing this engine, the Japanese navy and army also expressed extreme dissatisfaction. After all, in this plane, the engine power of the late German fighter jets is more than 175 horsepower! If you take into account the ground attack, you can even jump to more than 400 horsepower! The engine chosen by the Japanese industry is obviously unbearable for the Japanese navy and army who are pursuing tallness. This thing is too backward! So much so that Gonbei Yamamoto said that Japan's first engine had fallen behind before it was produced!

However, the final result is surprising. The performance of the Japanese version of the engine produced by the Japanese with a full set of drawings and molds can be described as a tragedy. The problems include but are not limited to short cylinder life and unstable engine speed. , unqualified heat sink processing, abnormal coking of spark plugs, unexplained engine vibration, air parking and fire... In the first batch of trial production engines, as many as 18 aircraft crashed due to engine problems! And in fact, the first pre-production engines were only 30 units....

So, the Japanese were shocked! Scared! In the case of paying an hourly salary of up to 5 pounds per hour, the Japanese finally invited experts from the British aviation engine. What is the concept of an hourly salary of 5 pounds per hour? If you don't take a break every month, it will be 1,200 pounds! At that time, a British MK tank cost only 5,000 pounds!

According to the understanding of the Japanese, there were original British drawings and molds before, but now that there are original British engineers, the problem can always be solved, right? And the British professional technicians with an hourly salary of up to £5 are really awesome. They quickly discovered many problems in the Japanese industry. These problems include but are not limited to too large casting tolerances, unqualified heat treatment of parts, insufficient mechanical strength, and fuel octane ratings. Too low and so on a series of problems! And said that it will take a "relatively long time" to solve these problems.

Then the Japanese decided to replace the self-produced engine with British ones when the performance was not up to standard. It stands to reason that it should be too late for this matter. After the original British air-cooled engine was first used, the response from the troops was really good. But then, when those planes were deployed to the Philippines and Guinea, the problem started again! Engine stability and life plummeted. In this regard, the explanation given by British experts is that under the current technical conditions, the air with high humidity and salinity in the tropics is very unfriendly to air-cooled engines! No way, if the temperature is too high, the heat dissipation efficiency will definitely be affected!

So, in the end, the suggestion given by the British experts is to let the Japanese try to replace the liquid-cooled engine...  So, this is embarrassing! For the British, although it was only World War I, both liquid-cooled and air-cooled engines had become a system, and even when designing aircraft, the problem of liquid-cooled and air-cooled interchangeability under special circumstances was taken into account. But for Japan, it will take "a long time" to develop a relatively low-level air-cooled engine. Not to mention a liquid-cooled engine?

Faced with the tragic situation that war may start at any time in the next year, the Japanese really have no choice, so they can only decide to increase the import of engines, and solve the heart problem of the Japanese Air Force by "stocking up" a large amount of goods before the war. Therefore, this time , Kikujiro Ishii's first strategic goal in this negotiation is to purchase as many aero engines and accessories as possible! And persuade the British to continue to provide related products during the war.

"If these plans can be realized, the engine problem of the Japan Air Force during the war should be solved?" Kikujiro Ishii said in his heart before finalizing the final negotiation plan last night. But is this really the case? I can only say that it is possible! With the continuous advancement of technology, the performance of the product itself is indeed very important, but the maintenance and maintenance of the equipment and the relevant teams have also become very important! The Japanese may be able to meet the air force's needs for engines on paper by hoarding a large number of engines, but you must know that engines need maintenance, which requires a large number of professionals and teams to effectively maintain these precision equipment. The Japanese can stock up on engines, but what about the urgently needed professionals?

In fact, this kind of problem is not only faced by the Japanese now. Even in World War II in history, after some equipment is changed to the battlefield, the combat readiness will decline due to the different environment and maintenance problems. For example, from the Pacific battlefield to Europe. The P38 of the battlefield. After arriving in Europe, during winter operations, the P38 suffered from the cold and humid air in Europe, resulting in a decline in combat readiness, and the British and German air forces operating in Africa were also very passive by the local desert climate. Of course, all of this has nothing to do with Ishii Kikujiro now, he is only now really starting today's work!

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