On May 30, 1937, Tu Qianjun secretly came to a military camp on the outskirts of Fengtian City. Then there were shouts of emergency assembly and "fight to the death" from the barracks.

On June 5, the troops of the barracks quietly left the area. No one notices that another unit has been replaced here.

And the arsenals of the three eastern provinces have also increased their production, especially artillery! In previous wars, the Chinese defense forces captured many Japanese artillery, including the Meiji 38-year 105mm field gun, the 91-type 105mm field gun, and the Taisho 14-year 105mm field cannon...... Wait a minute!

After these weapons were returned to the arsenal, they naturally had to be disassembled and studied, and at the same time, technological modifications were constantly introduced. At present, the three eastern provinces have been able to produce their own 105mm, 120mm, and 150mm...... Artillery of equal calibers!

The main reason why those 75mm guns were willing to be sold to the Soviet Union this time was also because the Wehrmacht was preparing to reequip. According to the research and comparison of Jia Xiaohou and others, the caliber of the main artillery of the National Defense Force has been determined to be 105mm.

At the same time, after a series of improvements, cost compression and technical improvements, this gun has exceeded the original technical parameters of the Japanese army. And in the end, it was the Liao 24-year 105mm howitzer!

For example, the firing range, the Liao 24 105mm howitzer developed by the three eastern provinces was nearly three kilometers longer than the Japanese army's 10-kilometer range, reaching 13 kilometers. The weight is hundreds of kilograms lighter, only 1.53 tons.

It can be said that this is completely different from the artillery that the original Japanese army was equipped with!

These technologies were built with the assistance of German and American technicians introduced by the Wehrmacht and the efforts of a large number of local R&D personnel from the three eastern provinces.

At present, the four artillery factories in the three eastern provinces can produce 200 Liao 24-year 105mm howitzers and more than 120 150mm mortars per month! At the same time, if production is stepped up, it can also produce nearly 100 guns with a caliber of more than 100mm.

And now, the Fourth Army Corps stationed in North Korea has been completely reequipped. At the same time, there are also 107 Tiger Roar as mobile firepower. Individual firepower is mainly equipped with fire crows.

In the general factory of the arsenal of the three eastern provinces, Tu Qianjun looked at the output information provided by the factory director. At the same time, he listened to the report on the output and planned production volume he made.

"We don't have much time, and the Japanese won't give us a lot of time!" Tu Qianjun slowly closed the report and said in a deep voice to Jia Xiaohou and the others present: "The costume change must be completed as soon as possible!" Meantime. Supervise the production of Tiger rifles! Now that the miniaturization is complete, we need to hurry up and change our clothes! And also! The reserve of bullets is still not enough, and the monthly production must continue to increase! ”

Jia Xiaohou nodded, and then Tu Qianjun's words began: "It's not that the output can't be raised, it's mainly the problem of materials." If you can solve the problem of raw materials for us. We can increase the output by at least half! If you increase the plant and equipment, doubling it is not a problem! ”

Tu Qianjun nodded, was silent for a while, and said to Jia Xiaohou: "The problem of raw materials, I'll figure it out!" All you have to do is to speed up production as much as possible, and the soldiers on the front line are waiting for your weapons to kill the enemy......"

Everyone nodded, they knew that the burden on them was not light! Together with the newly built regiments in Yunnan and Shaanxi, the number of troops of the National Defense Forces has reached more than two million! So many people. How many weapons do you need to be fully armed?!

In the three eastern provinces, there are now only four artillery factories and twelve gun factories. There are a lot of changes involved in completing such a large number of outfits!

Tu Qianjun was preparing, and his opponent Japan was not idle. Since tasting the firepower superiority of the Wehrmacht, the Japanese Army began to develop its own new artillery based on the naval guns!

Type 90 240mm heavy cannon, Type 90 120mm heavy cannon, Type 90 240mm train cannon, Type 96 150mm heavy cannon, Type 96 240mm heavy howitzer...... And so a large number of heavy artillery weapons began to be installed in the troops!

At the same time, the Type 97 tank, which was newly designed and practiced, was also mass-produced, which was a new type of tank developed by the Japanese army based on the Type 97 medium tank. At least for the Japanese army.

The tank was first armored with a 50mm frontal armor that was 25 mm in front of it. Meantime. The sides are reinforced to 30mm. The artillery continued to use the 57mm Type 97 gun.

The horsepower of the tank has also been increased from 170 to 240 horses! And this tank, produced day and night by Mitsubishi Heavy Industries and the Sagami Arsenal, has been equipped with more than four hundred units! Together with the previous Type 97, the Japanese army was equipped with a total of more than 1,000 tanks!

Thereupon. The entire Japanese army is full of confidence in this! The new tank crews are gearing up to destroy the so-called "invincible" tanks of the Wehrmacht on the battlefield! to wash away the shame!

The Japanese are refitting their tanks, and the Wehrmacht is also refitting. The tank units originally stationed in Harbin found a problem, once the winter came, it would become very difficult to start the tank.

Moreover, steel became extremely fragile under extreme cold, and in order to solve this problem, Tu Qianjun asked Jia Xiaohou and others to develop an engine heater called "warm current".

This heater is integrated or naturally integrated into the engine cooling system, and the heat is delivered through the coolant to the heat replacement parts, which are evenly blown into the cabin through the vehicle's existing air ducts.

Using volatilization technology, the fuel is heated and evaporated into a gaseous state by the ceramic ignition plug, which is ignited quickly and fully combusted.

This heater is safe and reliable. It can be widely used on a civilian basis, so it has been welcomed by everyone! After Tu Qianjun registered a patent in the United States, he made this technology a civilian use.

Winters in the three eastern provinces are also extremely cold, and many civilian vehicles have also been affected. The heater sold well, and the Wehrmacht's R&D Institute made a small amount of money because of it.

And secondly, Tu Qianjun introduced the Erlikon cannon!

There is probably no cannon that can compare to the position of the 20mm cannon in the Swiss Erlikon in World War II!

The Swiss company's 20mm cannon and its numerous derivatives were adopted by major belligerent countries such as France, Germany, Britain, the United States, and Japan in the mid-to-late 30s. It constituted the main artillery force of the air forces of various countries from the beginning of the war to the middle of the war!

In total, more than 30 countries used Erlikon products during the war, and the Swiss can be found everywhere from the hot deserts of North Africa to the vast Pacific Ocean.

The origins of the Erlikon 20mm cannon can be traced back to the Baker gun, which was adopted by the Luftwaffe at the end of World War I, and was used as an airborne gun and anti-aircraft gun. After the end of the war, the Simmag company purchased this design and made further improvements, creating an "L" cannon that fired 20x99RB shells, weighed about 43 kg, and had a rate of fire of 350 rounds per second.

The Erikon company then annexed Simag, on the basis of which a heavier S-type cannon was developed, firing 20x110RB shells, weighing 62 kg and having a rate of fire of 280 rounds per minute.

This kind of cannon is so good, Tu Qianjun naturally wants to introduce it. And now the new Tiger Shark I fighter is equipped with a "Qiang" 20mm*110 cannon modified according to this cannon!

After the modification, the reload reached 600 rounds! The rate of fire has been increased to 520 rounds per minute! At the same time, the weight has been reduced to 25 kg! Enough to equip on a Tiger Shark i fighter!

Then, Tu Qianjun applied for a patent for these! Erikon gritted his teeth, but Tu Qianjun did buy the production patent and also bought the production line. On this basis, the modification was directly patented, and it was legal in this day and age.

Tu Qianjun applied for a patent, which meant that Erlikon could no longer produce products with similar performance. But Tu Qianjun is not a person who is absolutely good, and after the person who pulled Erlikon muttered for a while, the Swiss made a report to the headquarters with a grin.

It is said that Erlikon was authorized to have the right to "relent" production, but in fact it was Germany's Krupp who got this right of production. This is one of the conditions for Tu Qianjun to return in exchange for those national treasures.

As for the United States, it was authorized to Colt. As for the U.S. Congress, Colt and the others will take care of Tu Qianjun by themselves, and they don't care about it at all. The only condition for Erikon, Krupp, and Colt was that they could not be sold to Japan.

This made the Japanese grit their teeth with hatred, but they were helpless. The Japanese Army was working on its own fighter jets, and the Navy's newly developed fighter had already been successfully test-flown and was ready to be mass-produced and equipped with troops in 1938 after being equipped with a 7.7mm caliber machine gun.

And this aircraft was named "Zero Carrier-based Fighter" by the Navy, numbered "A6M"! As a successor to the Type 96 carrier-based fighter!

Of course, according to the practice of the Japanese army, the Navy hid its own fighters from the army manure. The Army, on the other hand, is stupid enough to continue to produce the Type 97 modified light explosive aircraft, which they think is already very advanced. The fighter was equipped with two 7.7mm machine guns. Of course, this is also the fact that the army is hiding the situation from the navy.

At the same time, Nakajima also developed a fighter similar to the Navy for the Army and successfully tested it. The fighter was named the Nakajima Ki-43-1 Hayabusa. But the generals of the army felt that the Ninety-Seven Style was advanced enough. It is because this fighter is not equipped.

Actually, the most important reason is that they don't have much money! In fact, the navy has no money, and both armies are eagerly looking forward to the war!

Everything is in full swing! The Nakajima Ki-43-1 Hayabusa fighter was not produced until 1938.

The entire military department was full of confidence, and more than 100,000 troops and more than 1,300 new-type 97 fighters were deployed to the DPRK! In order to earn back the face that was once lost!

The Japanese garrison in Tianjin has quietly increased to more than 4,000 people! In Qingdao, the number of Japanese troops also rose to more than 5,000 in silence! In Shanghai, the garrison of the Japanese army was as high as more than 6,000 people!

On the border between Fujian and the provinces, the number of Japanese troops stationed in Fujian is also increasing! War, on the verge of breaking out! (To be continued.) If you like this work, you are welcome to vote for recommendation and monthly passes, and your support is my biggest motivation. )