When it comes to Japan, many Chinese people are still indignant. Especially during the Second World War, the Acts of the Japanese Aggressors in arbitrarily harming the Chinese people with more powerful and advanced strategic weapons are still not to be forgotten. Fortunately, after decades of hard work, the motherland has now become a world-class power, and similar things will never happen again.
So in terms of Japan's military strength at that time, how strong was it? In fact, compared with China, Japan's combat weapons are naturally very advanced. However, in the face of the Western countries led by the United States, Japanese tanks and individual weapons are not enough to see. However, what many people don't know is that the world's first "underwater aircraft carrier" was actually made in Japan.

Fanciful ideas
In view of this, people cannot help but question how powerful Japan's "underwater aircraft carriers" really are. According to relevant information, this aircraft carrier can make 3 Qinglan bombers catapult take off when it surfaces. Even the United States, the world's largest industrial power at the time, had to admit that it was unbelievable. Leaving aside for the moment how effective the actual combat is, this idea alone is indeed worthy of recognition.
And people who understand the development of amphibious weapons know that even now, the amphibious weapons successfully developed by countries around the world are mainly amphibious landing ships. Amphibious combat weapons such as sea and air, land and air, are relatively rare. At that time, the aircraft carriers were not too mature, and Japan was able to think of this, and from the point of view of ideas, it was indeed worth affirming.
Awesomeness
So how powerful is the world's first large-scale "underwater aircraft carrier" successfully developed by Japan? According to relevant information, the submarine successfully developed by Japan is named - I-400, which is 122 meters long, can carry up to 220 people, and has a maximum range of 60,000 kilometers. In order to ensure that this "underwater aircraft carrier" can operate normally, the Japanese side even equipped it with 4 diesel engines with up to 7700 horsepower.
From the data point of view, compared with all submarines in other countries in the same period, the data of the I-400 can definitely be described as gorgeous. More importantly, the I-400's ability to accommodate 3 Qinglan bombers at a time makes it the largest in the world. However, after it surfaced, it could be catapulted and taken off, and some people still expressed doubts, after all, this technology is too advanced, and the probability of successful use by the Japanese is relatively low.
Japan has developed an underwater aircraft carrier
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Many people may wonder, since the "underwater aircraft carrier" is so powerful, why have the countries of the world not vigorously promoted this weapon? In fact, the reason is very simple, although this weapon is novel, but the actual effect is not as great as people think. Especially in maritime warfare, the submarine itself needs to hide itself as much as possible, and how can it float out of the water at will to become the take-off platform for the fighter?
In addition, after all kinds of weapons have their own functions, this kind of "underwater aircraft carrier" is actually somewhat redundant. If you really need to study this direction in depth, this type of underwater aircraft carrier can also carry some small underwater warships or surface warships. It's just that to develop to that extent, human beings still have a long way to go.