Type 10(MW-X

Understand, in heaven they only talk about the sea. How infinitely beautiful it is... About the sunset they saw...
About how the sun, plunging into the waves, became scarlet as blood. And they felt that the sea absorbed the energy of the luminary into itself
and the sun was tamed, and the fire was already burning down in the depths. And you?... What will you tell them? After all, you have never been to the sea.
Up there they will call you a sucker ...

new japanese 4th generation tank

The first Japanese tank Type-89 Otsu.

Japanese tank building has always been one generation behind the world. This was the situation during the war years, and in the post-war years, and even in those days when Japan was the flagship of the scientific and technological revolution. And just recently, the Japanese decided to get ahead and be the first in the world to create the basis of a fourth-generation battle tank. The tank received an index Type-10.

The fact is that in 2004, for the first time in the post-war period, Japan abandoned the concept based solely on the principle of self-defense, and now nothing restrains it from developing an aggressive potential.
On February 13, 2008, a public demonstration of a new generation tank took place in Japan, which incorporated all the most modern design solutions in the field of tank building and was created taking into account the experience of conducting local conflicts in recent years. A prototype of a promising MBT was presented to journalists at the research center of the Japanese Ministry of Defense in the city of Sagamihara.
In appearance tank Type-10 traced common features with such modern MBTs as Leopard 2A6 and Merkava Mk-4. But in terms of dimensions and weight, it is closer to Russian tanks.

Type-10 with a cannon forward, it is 9485 millimeters long, 3.24 meters wide, and 2.3 meters high.
The mass of the tank is 44 tons, the crew is three people. The main armament is located in the manned turret - a 120-mm smooth-bore German Rheinmetall gun with a barrel length of 44 calibers and equipped with a conveyor-type automatic loader, a 7.62-mm Type-74 coaxial machine gun and a 12.7-mm Browning M2HB anti-aircraft machine gun. The gun is equipped with a propellant gas ejector, a thermal casing and is stabilized in two planes.
The Japanese would not be Japanese if they did not focus on the BIUS (combat information and control system) and TIUS (tank information and control system). The tank is also equipped with an efficient panoramic view system.

Type-10 equipped with a 1200-horsepower eight-cylinder diesel engine, which allows the tank to develop a 70-kilometer speed. The transmission of the tank is automatic stepless. The tank has an active hydropneumatic suspension.

Type-10 incorporated all the most modern developments in the field of tank building. The tank is equipped with the C4I electronic system, which combines control, guidance, communications and reconnaissance capabilities. The system allows automatic exchange of information between tanks. According to a representative of the Ministry of Defense, the tank's SLA allows you to effectively deal with small moving targets. This feature, combined with a modern modular composite armor system, is said to allow the tank Type-10 to operate equally successfully in combat both with armies with modern MBTs and with partisan formations, the main anti-tank weapons of which are hand-held anti-tank grenade launchers. In a Japanese television report on the new vehicle, considerable attention was paid to the "anti-terrorist" potential of the tank and its protection against various types of RPG-7.
The first tank battalion armed with tanks Type-10, was formed in December 2012. New tanks are sent primarily to Hokkaido - there is the center of Japan's military efforts. The Japanese are just waiting for an opportune moment, so that when an internal mess happens in Russia or a powerful enemy attacks us, in order to land troops on the Kuril Islands, on Sakhalin, and, if possible, in Primorye.
Japan currently has 890 tanks, 560 of which are obsolete Type-74s and 320 are obsolete Type-90s. tanks Type-10 there are only 13 vehicles so far, but the production capabilities of the Mitsubishi company are known to be enormous, and the Japanese are quite capable of churning out a significant number of tanks of this type.

Japanese tank building dates back to the 20s of the last century. Until the creation modern tank in the design of combat vehicles, several lines are clearly traced.

Firstly, due to the constant shortage of raw materials, tanks in in large numbers never built. The maximum was reached in 1942, then 1191 units were built in a year, then the number was constantly decreasing. For comparison, over 24,000 tanks were produced in the USSR during this period, and 6,200 in Germany.

Secondly, in order to ensure dominance over the Pacific theater of operations, Japan gave priority to building a powerful fleet and aviation, and ground forces played the role of "cleansing".

Even adopted on January 25, 1945, the decree "Program of emergency measures to achieve victory" in the production of weapons gave priority to the construction of aircraft. Therefore, for the successful transfer of tanks by ships, the latter had to have low weight and dimensions. Because of both reasons, the Japanese industry has never produced heavy combat vehicles.

Japanese strategists believed that there could be no tank battles on the islands, so for a long time tanks were armed only with machine guns to destroy manpower and suppress enemy firing points. By the way, the strategists were right - tank battles were extremely rare on the islands.

The use of tanks by the Japanese army

The regulations and instructions of the Japanese army assigned tanks the role of close reconnaissance and infantry support in battle, and therefore, until 1941, large tank units were not created.

The main task of the tanks, as stated in the charter of 1935, is to "fight in close cooperation with the infantry." That is, as already mentioned, the destruction of the enemy’s manpower, the fight against his firing points, the suppression of field artillery that was not suppressed during air and artillery preparation, as well as a breakthrough in the defensive line of defense of passages for infantry.

Limited interaction of tanks with aircraft and field artillery was allowed. Sometimes tank units or just one tank were sent beyond the front line of enemy defense to a maximum depth of up to 600 m, in the so-called "close raids". After breaking the defense system, the tanks had to immediately return to the infantry to support their attack.

As a kind of reconnaissance, small tanks were used in the first echelon, which opened the enemy's fire system, followed by medium and light tanks with infantry. Objectively, such a combat system became outdated after, but in conflicts in Burma, China, Malaya and other countries it brought certain results. Sometimes tanks were used as part of joint groups for deep raids, in addition to tank units, the group included: motorized infantry, cavalry and sappers in field artillery vehicles. During the march, tanks with the task of destroying the enemy interfering with the advance could be attached to the vanguard. At the same time, they had to move either in “leaps” ahead of the avant-garde or in a parallel course. When guarding, they could allocate 1-2 tanks to the post.

During the defense, they were used to carry out counterattacks or fire from ambushes, often used as fixed firing points. Direct battles with enemy tanks were strictly forbidden, allowed only as a last resort.

The personnel of the tank troops as a whole was quite well trained. Drivers, radio operators, gunners, gunners were trained in special schools over the course of 2 years. Tank commanders were recruited from among the combined arms, who even inside the tank did not part with their sword. To comply, they underwent only retraining for 3-6 months.

In general, in the description of the military operations of the Japanese army, notes characteristic of the military concepts of the USSR and Germany were visible - maneuverability and surprise, but a small number and low specifications tanks were forced to consider the latter more as positional means.

Designation of Japanese tanks

To designate military equipment and weapons in Japan, two interchangeable options were used: numerical or using hieroglyphs.

For numerical designation, the year the model was adopted for service was used for the reckoning "from the foundation of the Empire" (660 BC). Until the “round” year 1940 (3000 according to the Japanese calendar), the full designation (four digits) or the last two were used, so the 1935 models corresponded to the names “type 2595”, “2595” or “95”, and for the 1940 model year - “type 100". Starting from 1941, only the last digit was used in the designation: sample 1942. - "type 2", 1943 - "type-3", etc.

In another version of the designation, names were used consisting of a hieroglyph denoting the type of combat vehicle and a counting hieroglyph.

For example, "Ke-Ri" and "Ke-Ho". Here, the numerical value corresponded to the development number, and not to the year of adoption. It goes without saying that there were exceptions, for example, “Ka-Mi” consists of the word “floating” and the beginning of the name of the digging company “Mitsubishi”, and “Ha-Go” consists of a “counting” hieroglyph and the word “model”. Sometimes some machines were named after the names of firms and arsenals - "Osaka", "Sumida". In some documents, including Japanese ones, Latin abbreviations are used to designate tanks and armored vehicles, as a rule of thumb for prototypes.

If we talk about Japanese tanks in general, they were distinguished by their low weight and weak armor. At a specific pressure of 0.7-0.8 kg/cm2, they had good permeability. But at the same time they had weak fire support, primitive means of observation and were provided with poor communication devices.

Until 1940, when welding was used, tanks were assembled using rivets on the frame. Based on the low growth of tankers, the internal space was compressed to the maximum. Repair and maintenance of components and assemblies facilitated the abundance of hatches, which at the same time weakened the armor plates.

Of the positive characteristics, it can be noted that the Japanese were the first in the world to use course machine guns and diesel engines; different classes of vehicles used the same commander's turrets, the same suspension scheme, etc., which greatly facilitated the training of personnel.

History of Japanese tank building

Japan's first own tank was built in 1927 by the arsenal in Osaka, an experimental two-tower tank "Chi-i" (middle first) weighing 18 tons. Before that, foreign-made tanks were used, the French M21 Chenillet, Renault FT-18, NC-27, Renault NC-26, English Mk.IV, Mk.A Whippet, MkC, Vickers, Vickers 6-ton. All purchased samples were carefully analyzed by designers. So in French (they went into the series as "Otsu"), the engine was replaced by a diesel one. By the way, the French NC-27 (“Otsu”) and Renault FT-18 (“Ko-gata”) were used by the army until 1940.

In addition to the two-turret "Chi-i", an 18-ton three-turreted tank "Type 2591" and in 1934 a three-turret "Type 2595" were created in 1931. If these vehicles were at least actually created, then the creation of the “Type 100” or “O-i” (big first) stopped at the design work, it was planned to use a three-tower vehicle weighing 100 tons to break through fortified areas. This ended the experiments with the creation of multi-turreted tanks, several built tanks "2591" were used in China.

On the basis of the Vickers Mk.S tanks in the early 30s. the medium tank "I-go" ("first model") or "89 Ko" was created. It became the first mass-produced tank, from 1931-1937 230 units were produced.

Japanese tank building received a significant boost after the High Command made a decision on large-scale mechanization of the army in 1932, followed by corresponding orders from industry.

The Japanese managed to avoid the wedge craze. After analyzing the purchased Cardin-Loyd tankette, the Japanese created a small Type 2592 tank. It used the suspension proposed by the most famous Japanese tank builder Tomio Hara. The model turned out to be so successful that several new models were later built on it.

In 1935, the industry began to produce the most famous light tanks "Ha-go", and from 1937 - medium tanks "Chi-ha". Both models were the main ones in the Japanese tank fleet to the end.

The planning of military operations on the islands required the presence of floating combat vehicles for the landing. Work on the creation of such machines has been carried out with varying degrees of success since the late 20s, but the peak came at the end of World War II. In 1934, there was an attempt to create a floating tank by giving the body a displacement shape "2592" or "A-I-Go", since 1941. the floating "Type 2" or "Ka-mi" is serially admitted, since 1943 "Type 2" or "Ka-chi", and in 1945. appeared "Type 5" or "To-Ku".

After the transition to strategic defense, tank production increased significantly, some models underwent modernization, some were removed from production and replaced with new models. So the lungs appeared: 1943 - modernized "Ha-go" - "Ke-ri" (light sixth), 1944 - "Ke-nu" (light tenth), 1944 - "Ke-Ho" (light fifth); and medium: 1941 modification of "Chi-ha" - "Chi-He" (middle sixth), 1944 - "Chi-to" (middle seventh), 1945 - in a single copy of "Chi-Ri" (middle ninth), 1945 - "Chi-Nu" (middle tenth).

Modern Japanese tanks

After the end of World War II, while under the American occupation forces, the production of armored vehicles in Japan completely ceased. Its restoration began from the moment the "self-defense forces" were created, at first armed with the American M24 and M4. It should be noted that all post-war tank building in Japan is under the strong influence of the United States. Mitsubishi Heavy Industries becomes the main developer of tanks.

The first post-war tank was the Type 61, which remained in service until 1984. Pre-war traditions were visible in the tank, for example, the aft engine with front-wheel drive. Starting from 1962, development began on the main battle tank, it became the serial "74". First of all, to counter the Soviet "T-72", in 1989 the third generation tank "90" was adopted. On February 13, 2008, Japan introduced the latest generation Type 10 tank. In appearance, the Type 10 resembles the Merkava Mk-4 and Leopard 2A6, but in terms of weight it is closer to Russian tanks. In principle, this is only a prototype and it can go into the series with some changes.

Good World Evil (Myth)

The development of armored forces in Japan
On November 25, 1936, Imperial Japan and Nazi Germany signed the Anti-Comintern Pact. A year later, in 1937, fascist Italy joined the agreement. The Berlin-Rome-Tokyo Axis Coalition proceeded to divide spheres of influence. Japan, which had long dreamed of power over "Great East Asia", and had already managed to capture Manchuria by that time, turned out to be the most ready of its allies for large-scale military operations. In 1937, Japan launched an invasion of China. And it is no coincidence that this year in the country rising sun the first tank was created, which was predicted to be the main strike weapon of the Japanese ground forces.

Light tank "Ha-go"
"Ha-go" became the most massive Japanese tank of the 30s - 40s - in total, 1300 vehicles were produced until 1943. Small and light tanks generally formed the basis of Japan's tank fleet in World War II. According to the views of the Japanese military leadership, tanks were intended to accompany infantry in battle as part of small units. The 1935 manual for the preparation of tank units stated that "the main purpose of tanks is to fight in close cooperation with the infantry." Their main tasks were considered to be: combating firing points and field artillery and making passages for infantry in barriers. Tanks could be sent to "close raids" for Front edge enemy defense to a depth of no more than 600 m. At the same time, having violated his defense system, they had to return to their infantry and support its attack. The most maneuverable type of combat operations were "deep raids" along with cavalry, motorized infantry in vehicles, sappers and field artillery. In defense, tanks were used to carry out frequent counterattacks (mostly at night) or to fire from an ambush. The fight against enemy tanks was allowed only when absolutely necessary. True, by the end of the war, Japanese instructions already considered tanks as the most effective anti-tank weapon. Often, light tanks in defense were buried in the ground.

Type 97, aka "Chi-Ha" is a medium tank of the Imperial Japanese Land Forces.
Today's story is about the most famous Japanese tank of World War II. The most famous, and the most massive in production.

The Chi-Ha was one of the first Japanese tanks designed by Tomio Hara's group of engineers. Actually, this machine was a modification of the first two tanks put into service - the light "type 89 Chi-Ro" and "type 95 Ha-Go". Taking into account the first experience in tank building, with all its successes and failures, Japanese engineers set about simultaneously developing two subsequent models. One of them was called "Chi-Ha", he is also "middle third", the second - "Chi-Ni", he is also "middle fourth".

The reason for the simultaneous development of two vehicles was the following: the Japanese land army was then divided into two camps regarding tanks. One is headed by the Ministry of Defense, the General Staff of the Ground Forces and the Osaka Arsenal. They considered it more expedient to build as quickly as possible and as many light tanks as possible, simpler and cheaper to manufacture. The second camp is the arsenal of the city of Sagami, numerous military experts and officers from the front. They considered it better to build fewer tanks, but more advanced ones - full-fledged ones.
medium tanks with good armor, maneuverability and weapons. Both sides never came to a mutual agreement, so the engineers were ordered to develop two versions of the tank that would suit both sides. "Chi-ha" had to meet the requirements of the Sagami arsenal - that is, to be a well-protected medium tank, and "Chi-Ni" - the requirements of the general staff, and be a lighter and cheaper vehicle.

Medium tank "Type 01 Chi-Khe"
Tank "Type 01", also known as "Chi-Khe", was built on the basis of the tank "Type 97 Chi-Ha" and, in fact, was its modification.

Taking into account the combat experience of the Chi-ha tank, the Japanese designers decided to improve an impressive number of units of their armored vehicles. The reason for this was the not-too-impressive results of the Japanese Chi-Ha tanks when meeting with the American M3s. The new tank, "Type 01 Chi-Khe", also known as the "middle sixth", was supposed to get a more powerful gun - the weakest point of all previous tanks, also a more powerful engine, and thicker armor.

So, given the sad experience of collisions with American tanks, Japanese engineers were forced to introduce a number of significant changes in the design of their armored vehicles. At that time, the "Type 97 Chi-Ha" and its modification "Shinhoto Chi-Ha" were considered the best Japanese tanks. However, as it turned out, "Chi-Ha" was armed with too weak turret gun, unable to penetrate the thick armor of the "Americans" from a long distance. It was also decided that the "Chi-Ha" had not very reliable protection, both in terms of the thickness of the armor, and in terms of the angle of inclination of the armor plates.

The first tank to receive these modifications was the Type 01 Chi-Khe.
Compared to its predecessor, the Chi-Ha tank, the Type 01 is slightly longer and slightly narrower. The increase in the thickness of the frontal armor plates, as well as their more obtuse angle of inclination, caused the tank to become heavier by a little over two tons. On the new car, there was no longer a cutting forward and blinds on the sides.

Japan was one of the leading powers during World War II. The scale of the strategic plans of its leadership had to be confirmed by the high quality of technology. Therefore, in the 30s, the Japanese created many models of tanks that fought for several years without interruption on the Pacific front of World War II.

Purchase of Western models

The idea of ​​creating their own tanks appeared in Japan after the First World War. This conflict showed the promise of this modern type of weapon. Since the Japanese did not have their own industry necessary for the production of tanks, they began to get acquainted with the developments of the Europeans.

For Tokyo, this was a familiar method of modernization. The Land of the Rising Sun spent several centuries in total isolation and only in the second half of the 19th century began to develop intensively. From scratch, new branches of the economy and industry appeared. Therefore, the task of conducting a similar experiment with tanks was not so fantastic.

The first French Renault FT-18s were purchased in 1925, which at that time were considered the best cars of their kind. These models were adopted by the Japanese for service. Very soon, the engineers and designers of this country, having gained Western experience, prepared several of their pilot projects.

"Chi-I"

The first Japanese tank was assembled in Osaka in 1927. The car was named "Chi-I". It was an experimental model that never came to fruition. serial production. However, it was she who became the very “first lump” that turned out to be for Japanese specialists. Starting point for further technical research.

The model had a cannon, two machine guns, and its weight was 18 tons. Her design feature consisted of several towers on which guns were mounted. It was a bold and controversial experiment. The first Japanese tank was also equipped with a machine gun designed to protect the vehicle from the rear. Because of this feature, it was installed behind engine compartment. Tests showed that the multi-turreted design was unsuccessful in terms of combat effectiveness. In the future, Osaka decided to abandon the implementation of such a system. The Japanese "Chi-I" tank remained a historical model that never visited real war. But some of its features were inherited by cars later used on the fields of World War II.

"Type 94"

Mostly Japanese were developed in the 30s. The first model in this series is the Tokushu Ken'insha (abbreviated as TK, or "Type 94"). This tank was notable for its small dimensions and weight (only 3.5 tons). It was used not only for combat, but also for auxiliary purposes. Therefore, in Europe, "Type 94" was considered a tankette.

As an auxiliary vehicle, the TC was used to transport goods and help convoys. According to the designers' idea, this was the original purpose of the machine. However, over time, the project evolved into a full-fledged combat model. Almost all subsequent Japanese inherited from the "Type 94" not only the design, but also the layout. In total, more than 800 units of this generation were produced. "Type 94" was mainly used during the invasion of China, which began in 1937.

The post-war fate of Tokushu Keninsha is curious. Part of the fleet of these models was captured by the Allies who defeated the Japanese after the atomic tanks were handed over to the Chinese - Communists and Kuomintang troops. These parties were hostile to each other. Therefore, the "Type 94" was tested for several more years on the fields of the Chinese civil war, after which the PRC was formed.

"Type 97"

In 1937, the "Type 94" was declared obsolete. Further research by engineers led to the emergence of a new machine - a direct descendant of Tokushu Keninsha. The model was called "Type 97" or "Te-Ke" for short. This Japanese tank was used during the fighting in China, Malaya and Burma until the very end. In fact, it was a deep modification of the "Type 94".

The crew of the new car consisted of two people. The engine was located at the rear, and the transmission was at the front. An important innovation compared to its predecessor was the unification of the combat and management departments. The vehicle received a 37 mm cannon inherited from the TK.

New Japanese tanks in the field were first tested in battles on the Khalkhin Gol River. Since they did not participate in the first attacks on Soviet positions, most of the Te-Ke managed to survive. Almost all active combat units of this type were deployed to the Pacific theater of World War II. These small tanks were used especially effectively for reconnaissance of enemy positions. They were also used as machines organizing communication between different parts front. The small size and weight made the Type 97 an indispensable weapon for infantry support.

"Chi-Ha"

Interestingly, almost all Japanese tanks of World War II were developed by Mitsubishi employees. Today, this brand is known primarily in the automotive industry. However, in the 30-40s, the company's factories regularly produced reliable vehicles for the army. In 1938, Mitsubishi began production of the Chi-Ha, one of the main Japanese medium tanks. Compared to its predecessors, the model received more powerful guns (including 47 mm guns). In addition, it was distinguished by an improved aiming.

"Chi-Ha" were used in combat from the very first days after their appearance on the assembly line. At the initial stage of the war with China, they remained an effective weapon in the hands of Japanese tankers. However, after the United States was drawn into the conflict, the Chi-Ha had a serious combat competitor. These were tanks of the M3 Lee type. They easily coped with all Japanese lung machines and middle segment. Largely because of this, out of more than two thousand Chi-Ha units, only a dozen representatives of this model remain today as museum exhibits.

"Ha-Go"

If we compare all the Japanese tanks of World War II, we can distinguish two of the most basic and common models. This is the above-described "Chi-Ha" and "Ha-Go". This tank was mass-produced in 1936-1943. In total, more than 2300 units of this model were produced. Although it is difficult to single out the best Japanese tank, it is the Ha-Go that has the most rights to this title.

His first sketches appeared in the early 1930s. Then the Japanese command wanted to get a car that could become an effective auxiliary tool for cavalry attacks. That is why "Ha-Go" was distinguished by such important qualities like high cross-country ability and mobility.

"Ka-Mi"

An important feature of the "Ha-Go" was that this tank became the basis for numerous modifications. All of them were experimental and therefore not widely used. However, this does not mean that there were no competitive models among them.

High-quality, for example, was "Ka-Mi". It was unique in that it remained the only mass-produced amphibious Japanese tank of World War II. The development of this modification of "Ha-Go" began in 1941. Then the Japanese command began to prepare a campaign to advance to the south, where there were many small islands and archipelagos. In this regard, it became necessary to land an amphibious assault. Japanese heavy tanks could not help in this matter. Therefore, Mitsubishi started the development of a fundamentally new model, based on the most common tank of the Land of the Rising Sun "Ha-Go". As a result, 182 Ka-Mi units were produced.

Use of amphibious tanks

The undercarriage of the old tank was improved so that the vehicle could be used effectively on the water. For this, in particular, the body was significantly changed. Due to their originality, each "Ka-Mi" was going slowly and for a long time. For this reason, the first major operation using amphibious tanks did not take place until 1944. The Japanese landed on Saipan - the largest of the By the end of the war, when the imperial army did not advance, but, on the contrary, only retreated, its landing operations. Therefore, "Ka-Mi" began to be used as a conventional ground tank. This was facilitated by the fact that in its design and running characteristics it was universal.

In 1944, photos of Japanese tanks floating along the coast of the Marshall Islands went around the world. By that time, the empire was already close to defeat, and even the appearance of a fundamentally new technology could not help it in any way. Nevertheless, the Ka-Mi themselves made a great impression on the opponents. The hull of the tank was spacious. Five people were placed in it - a driver, a mechanic, a gunner, a loader and a commander. Outwardly, the Ka-Mi immediately caught the eye because of its two-man turret.

"Chi-he"

"Chi-He" appeared as a result of work on bugs related to the characteristics of Chi-Ha. In 1940, Japanese designers and engineers decided to catch up with Western competitors in the simplest way by copying foreign technologies and developments. Thus, all the initiative and originality of the Eastern specialists were put aside.

The result of this maneuver was not long in coming - "Chi-He" more than all its Japanese "relatives" both externally and internally began to resemble European counterparts of that time. But the project came too late. In 1943-1944. only 170 "Chi-He" were produced.

"Chi-Nu"

The continuation of the ideas embodied in "Chi-He" was "Chi-Nu". It differed from its predecessor only in improved weapons. The design and layout of the hull remained the same.

The series was small. At the final stage of the Second World War in 1943-1945. only about a hundred "Chi-Nu" were produced. According to the idea of ​​the Japanese command, these tanks were to become an important force in the country's defense during the landing of American troops. Due to the atomic bombings and the imminent surrender of the state leadership, this foreign attack never happened.

"Oh-I"

How different were Japanese tanks? The review shows that among them there were no models of the heavy class according to the Western classification. The Japanese command preferred light and medium vehicles, which were easier and more efficient to use in conjunction with the infantry. However, this did not mean at all that there were no projects of a fundamentally different type in this country.

One of these was the idea of super heavy tank, which received the draft name "O-I". This multi-turreted monster was supposed to accommodate a crew of 11 people. The model was designed as an important weapon for the upcoming attacks on the USSR and China. Work on the "O-I" began in 1936 and, one way or another, was carried out until the defeat in World War II. The project was either closed or restarted. Today there is no reliable data that at least one prototype of this model was produced. "O-I" remained on paper, as did Japan's idea of ​​its regional dominance, which led it to a disastrous alliance with Nazi Germany.