readx; The fair was also strongly supported by the Chinese people, and many people came to visit, but because there were so many people who came, in order not to affect the conduct of the trade, the Imperial Government also limited the number of visitors. Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

Nearly half a month after the start of the expo, the number of visitors gradually increased, and the first half of the exhibition was the most golden half of the month, and 80% of the transactions were completed in the first half of the month.

Schools in Hangzhou and surrounding cities have also organized group visits, resulting in most of the events in the two-month exhibition of the expo being full.

More than 3.5 million tickets alone were sold, although it doesn't seem like much, but in fact, the Chinese at this time have done too much to see.

Many workers also want to visit this fair, but they are too busy with work to take a break.

On more than one occasion, the imperial government called on the people to step up their production tasks, and called on the workers to work more, get more wages, and create more social wealth.

During the fair, the military of the empire was also constantly evolving.

This year, the Imperial Army will expand its recruitment capacity to 1 million, thus increasing the Imperial Army to the level of 2 million, and when the empire was unified last year, the empire's strength was only 1 million, and for such a huge empire, there are only 1 million troops surrounded by strong enemies, and there are not many reserves, so the war potential is not high.

Therefore, the Imperial Army had to expand, and this year's recruitment of one million was completed in July, and this time the recruitment of new recruits was enthusiastically signed up by young people from all provinces.

The empire focused on recruiting a group of northern soldiers, and the northern soldiers were better able to adapt to operations in cold conditions, which was very important for the empire to fight tough battles in the north in the future.

However, this is not the main thing, the soldiers in the south can also adapt to the cold environment of the north after being trained to adapt to the surname, and the soldiers who grew up in the north are more likely to adapt to the extremely cold environment.

The empire has begun to build heating facilities in cities in the north, and in the future, people living in the north will be able to turn on heating in winter.

If you are used to heating, you will feel cold in the south, because there is no heating in the south, and you have to rely on air conditioning to heat in winter.

The empire is very likely to face operations in extremely cold environments in the future, and there has been some progress in the development of heating equipment in extremely cold environments.

The most unskilled thing is to burn charcoal for heating, put an iron basket as high as a garbage can, put large pieces of charcoal in it, the iron frame is full of holes, the soldiers will be warm when they stand on the side, the charcoal can continue to burn for hours, and it can be added regularly when camping.

However, the Army demanded that a multi-fuel heater be needed that would be safe, effective, and capable of running on a variety of fuels, such as gasoline, kerosene, coal, charcoal, and even wood.

A dedicated design team has been set up to conduct the study.

With the enlistment of 1 million new recruits, all major military regions have launched a vigorous training operation, and the training of officers is also in full swing.

The establishment of 20 armored divisions is also gradually proceeding, and these armored divisions are all adapted from armor divisions, from motorized to mechanized.

The production of the Type 13 tank also entered a period of mass production, and since it did not face the danger of all-out war, the speed of manufacture was not too fast.

After the mass production of the Type 13 tank, there is an advantage, that is, the chassis of the Type 13 tank can be used to make self-propelled guns, and the research on self-propelled guns has entered a critical stage.

The Army Artillery Research Institute and the Army Combat Vehicle Research Institute jointly research self-propelled guns, the personnel of the two research institutes are actually not too many, but after several years of training, there are also a large number of newcomers are growing rapidly, and the research force has been improved a lot.

After the reunification of China, these emergency talents will begin to evolve into real high-end talents, although the empire is still lacking in many fields, but there is a lack of high-end talents.

After nearly a year of research, the two research institutes have developed a variety of self-propelled guns whose surnames and abilities do not meet the requirements, but they have mastered the principle extremely proficiently.

The self-propelled cannon is a brand-new type of army equipment, and there is nothing to provide for reference, and Xia Jun is not too eager to build a self-propelled cannon, so he did not give any hints to the research institute, but let them slowly explore it by themselves to cultivate their research capabilities.

On August 13, the Army Artillery Research Institute, with the cooperation of the Army Combat Vehicle Research Institute, finally succeeded in installing a 75mm anti-tank gun on the chassis of the Type 13 combat vehicle.

The Type 13 chassis was a medium tank chassis with a light 75mm anti-tank gun, for which there was still a lot of space, so a machine gun was added to the front of the tank. Since too thick armor was not required, the weight was reduced from 26 to 18 tons for the Type 13 tank.

This self-propelled anti-tank gun can carry 85 rounds of armor-piercing shells, as well as 15 rounds of high-explosive shells, which are used to counter tanks and high-explosive shells to support infantry.

In contrast, the Type 13 tank carries more high-explosive shells than armor-piercing shells, because the tank cannot have so much time to shoot so many shells when it is dueling, and it is a waste to carry more armor-piercing shells, and the main purpose of the tank is to support the infantry when it is not in a decisive battle with the opponent, so it carries more high-explosive shells.

The self-propelled anti-tank gun, on the other hand, is some distance from the front line and does not necessarily have a direct view of the battlefield, so the number of high-explosive shells carried is small, because the weight of the engine is reduced, and at the same time the fuel tank is enlarged, so this self-propelled anti-tank gun can travel 530 kilometers.

The equipped 7mm anti-tank gun can penetrate 76mm forged steel plate at a distance of 1,000 meters and 100mm forged steel plate at a distance of 500 meters.

The anti-tank gun is a very popular artillery during World War II, because of the low cost and the relatively simple means of anti-tank vehicles during World War II, the anti-tank gun is very popular.

The current Chinese Army really needs such an anti-tank gun to deal with the possible Soviet tank, as well as the Yakuza tank.

At this time, the Soviet Union did not have the technology to provide combat vehicles from the United States, but it began to develop combat vehicles.

World War II was a war of movement, and self-propelled artillery shined, while towed artillery was less useful because the mobile surname was not good enough and the survivability was not high.

This 75mm self-propelled anti-tank gun is a relatively successful anti-tank gun, and its surname is excellent enough to deal with the tanks of all countries at present.

Under such circumstances, the Army decided to equip this 75mm self-propelled anti-tank gun, which was named the 'Type 02 75mm anti-tank gun', which means that it was developed in the second year of the Empire.

The Army then decided to purchase 500 of these anti-tank guns and finalize the production line of such anti-tank guns.

At the same time, the army is very satisfied with the application of the 81mm mortars designed and manufactured by the Artillery Research Institute, and has also decided to purchase a large number of such 81mm mortars to equip company-level and battalion-level units.

This 81mm mortar was named the 'Type 02 81mm Mortar', which also means that it was made in the second year of the Empire.

The army's equipment renewal is relatively expensive, but Xia Jun didn't plan to save this money, so the army's spending on equipment renewal was also approved by Xia Jun.

Two million troops, but the most elite is the twenty armored divisions, twenty armored divisions are given priority to replace equipment, and the other infantry divisions will have to wait a little longer.

According to Xia Jun's instructions, the Army Artillery Research Institute continues to study other self-propelled guns, and the next step is to study 120mm self-propelled mortars, which is a key project, but now 120mm mortars have not been researched! So first study the self-propelled version of the 60mm mortar and the 81mm mortar.

Although the 60mm artillery run is relatively light and can be carried by a single soldier, the mortar squad carrying the mortar may not be able to keep up with the infantry advance speed many times, because the mortar and the shell have weight, and the more shells can not run far, and the less can not fight for long.

Therefore, the 60mm mortar can be studied with a small chassis, or with a wheeled vehicle, which can easily keep up with the infantry.

However, in some rugged road environments, this self-propelled cannon is useless, and it still has to be carried manually.

At the same time, research on new howitzers and self-propelled howitzers was also launched, and the research task of the Army Artillery Research Institute was very difficult.

In particular, Xia Jun asked for the development of 203mm howitzers, for large-caliber howitzers, China has never had any research experience, but small-caliber howitzers have gained a lot of experience.

With so many research projects, the Army Artillery Research Institute is also a bit understaffed, especially in order to solve the problem of 203mm grenade breaking.

However, the time is not too short, and the Army Artillery Research Institute can study them one by one.

…… The Imperial Army is stepping up its armaments, and the Imperial Navy is not idle, it is building warships, and the navy is also expanding, and the navy has expanded to 80,000 people, and with the launch of new naval warships, the naval personnel is still expanding.

The Air Force is more leisurely, because the Air Force is waiting for a supercharged engine, and with the engine technology of the Empire at this time, it is impossible to improve the surname of the aircraft.

At this time, only by waiting for a new engine can we develop a more powerful aircraft.

However, the design of the Air Force has not stopped, and all kinds of new designs are constantly emerging, and as soon as the engine is available, these design drawings are manufactured and tested.

The engine supercharging team led by Zhou Chunhai successfully developed a supercharged engine in July, the supercharged engine is combined with the engine, that is, the engine turns as fast as the supercharger turns, and the maximum speed of the engine is only more than 6,500 times per minute, compared with the exhaust gas turbine engine with a speed of up to 100,000 times per minute, it seems very low, and the supercharging effect is limited, but at least there is still supercharging, and there is no lag surname of the exhaust gas turbocharged engine, and it is very smooth.

In the development of exhaust gas turbine engines, the bearings and needle rollers of the supercharger were replaced with alloys that are resistant to high temperature and wear.

After experimenting with nearly 30 alloys, an alloy formula was finally selected to manufacture the bearings and needle rollers of the supercharger, which solved the phenomenon of damage to the supercharger due to high temperature and crazy speed.

The supercharged engine was developed by force, and Zhou Chunhai wanted to continue to study the composite supercharged engine.

The composite supercharged engine is a combination of mechanical supercharging and exhaust gas turbocharging, and the cost of this composite supercharged engine will obviously be very high.

Xia Jun received the application report, and couldn't help but be stunned for a long time, how quickly it was developed?

(To be continued)