During the Xinhai Revolution, the three towns of Wuhan really formed, and the pattern of "sitting on the ground and supporting the army, the world has it", and soon after the revolutionary army occupied the three towns of Wuhan, the Manchu Qing Dynasty really perished.

"Fighting for hegemony in the world" is simply nonsense, three years later, the decisive battle between China and Japan, is what Liu Yun is really worried about, steel is the skeleton of a modern country, in 1937 China's total steel output, but hundreds of thousands of tons, Japan is as high as 9.5 million tons, not even a fraction of others, as for weapons production and army training, it is even more far away.

I don't know how the Nanjing government's boasted "golden decade" is golden, compared with the steel output in 1911, there is no advantage, it is simply in vain, no wonder the little devil wants to hit the door, Liu Yun wants to ask Kong Caishen in person, is it all relying on the Sino-US silver standard, which led to the appreciation of the Chinese currency, forming the illusion of prosperity today.

Theoretically speaking, the ant robot in Liu Yun's hand, in the case of sufficient raw materials, can produce tens of thousands of tons of steel a year, well, it is still level 10, if it can be upgraded to level 100, who says that it is less than Japanese steel, but how to upgrade, he has no clue for a while, whether to find the eldest grandson Mingyue and ask for a meteorite, it seems that it is not reliable.

Hanyang Arsenal is close to the steel plant, on the Han River in the 30s, there is no bridge connection, mainly by ferry traffic, Liu Yun and Pang Taishi got off the boat, did not walk a few steps, and arrived at the Hanyang Arsenal of the National Revolutionary Army, there are guards at the door, and idle people are not allowed to enter and exit easily.

Pang Xuezhong took out his documents tremblingly, and the guards said in surprise before they finished reading it, Chief Qin Guodong has been waiting for you for a long time, and a phone call passed, and soon a young man came and immediately took Pang Liu and the others to Director Qin's office.

As soon as the two of them stepped into the office, Major General Qin laughed, grabbed Liu Yun and Pang Xuezhong respectively, and said happily for a long time, "Thank God, you are finally here."

Pang Xuezhong and Liu Yun were a little flattered, and even forgot to return the gift, Qin Guodong also realized that he was out of shape, and hurriedly asked the two of them to sit down, while instructing the previous young man, Secretary Qian, to call the German experts to come over for a meeting, and personally pour tea for Pang and Liu.

Liu Yun really couldn't rob the old boss, so he had to enjoy the warm service of the major general, Qin Guodong seemed to be really happy, and he didn't stop talking when he asked, such as how Liu Pang and the others came here, where they live now, what are their plans in the future, whether they are used to life here, etc.

After the introduction of Director Qin, German steel expert Li Hans, German mechanical expert von Schnoder, as well as local artillery expert Hu Youbing, and local automobile expert Zhang Sili.

Li Hans was actually a steelmaking consultant, hired by the Hanyang Iron and Steel Factory, because the scrap rate of the Hanyang Arsenal has always been high, and finally the expert group identified that the quality of the steel was not up to standard, so the leading group of the Arsenal specially asked him to serve as a consultant of the Arsenal.

Von Schnoder is a real expert in armaments, once worked in the German Mauser Arsenal, is to assist Huaxia to imitate the German 1924 Mauser rifle, which is now the official rifle, by the way to repair all kinds of machinery in the arsenal, so he is a rare generalist, and he is also involved in cars and tanks, which made Liu Yun look at him a few more times.

As for Hu Youbing, I won't say so much, just say that this person is shouldering the task of imitating 122mm caliber and 240mm caliber artillery of Hanyang Arsenal, so you know how good he is.

Zhang Sili is said to be a descendant of Zhang Zhidong, but he is not a white eater, and a quarter of the foreign cars running around in the north and south of the river are secretly copied by this person in the arsenal, and he was once commissioned by Nanjing to successfully copy the "Renault" FT-17 tank.

According to the order of the Nanjing Military Commission, the establishment of a "Sino-German Joint R&D Group" was announced, with Major General Qin, the leader of the group, von Schnodder, the deputy leader, Liu Yun, the chief engineer, Hu Youbing, the gun engineer, the material engineer Li Hans, the special vehicle engineer Zhang Sili, and the preparatory director of the West Sichuan County Arsenal, Pang Xuezhong, a total of seven people.

The pre-research of the new engine is the first topic of the R&D team, which first fine-tunes the data of the new tank according to the development requirements of the German side, and then summarizes it by Liu Yun and reports it to everyone.

At the end of the meeting, it was decided that Liu Yun, Zhang Sili, and German experts would be responsible for pre-researching engines, Hu Youbing would pre-study 75mm and 88mm tank guns, and Pang Xuezhong would select some ordnance experts to go to western Sichuan County to select a site for the new arsenal, and Major General Qin would be the chief dispatcher.

After a cursory look at the specific data, the two German experts on the research and development of the new tank, repeatedly questioned, for the pre-research engine 800 horsepower requirements, is also regarded as an incompleteable task, the two local experts do not matter, superstitious foreigners omnipotent Major General Qin, but a little like pins and needles, frequently looked at Liu Yun, hoping that he could say something.

Liu Yun, who wanted to be low-key and low-key, also had to stand up, cleared his throat, and showed a charming smile, "You are all seniors, and I don't need to elaborate on professional issues, I will first talk about the current situation of tank development in various countries."

First of all, focusing on two German experts, Liu Yun said sharply, "Your country's No. 1 tank, which has been mass-produced in September this year, is actually an armored car, and the No. 2 tank already has a prototype, but it is full of failures and cannot be finalized on time."

Ignoring the German expert's ghostly look, Liu Yun shrugged his shoulders and continued his striking pleasure, "Don't worry, your country has already planned to lower the standard, the weight will be set at about 8 tons, the power will be less than 180 horsepower, and the caliber of artillery fire will be below 30mm, and it is expected to be mass-produced next year."

"As for the No. 3 battle tank, and the No. 4 support tank, at present, only the chassis has been made, such as power, armor and firepower, etc., which are still groping in the dark, well, various performance parameters, it is a little lower than ours."

Hmph, the tank developed now is based on the future No. 5 and No. 6 tanks, the performance parameters, where will it only be a little lower, Liu Yun thought with a smile, so he continued to reveal other state secrets, "This year is really a climax period of tank research and development."

Qin Guodong saw the German expert, he was stunned and pale by Liu Yun, and there was an indescribable sense of excitement in his heart.

Pang Xuezhong is better, he doesn't know anything about professional technology anyway, and he is drinking tea with an old god, which makes several other team members a little unfathomable and frequently pay attention.

"This year, Soviet Russia also set a research and development plan for a new tank, codenamed T34, the specific content is unknown, the engine requires 700 horsepower, a weight of 40 tons, and an artillery caliber of 85mm."

Liu Yun is worthy of being a scholar, and he is very cunning to exaggerate the parameters of the enemy's tank, anyway, everyone is just engaged in pre-research, the performance is set higher, the actual operability, and the room for return is larger, which is also the unspoken rule of the ancient and modern Chinese and foreign military design circles.

"The United States also has a similar proposal this year, but it has not passed, but according to reliable information, the army has issued a plan to some private companies to pre-develop M3 and M4 tanks, the standard is also lower, the weight is 30 tons, the power is 550 horsepower, and the caliber of artillery fire is 75mm."

Anyway, the pre-research of tanks in various countries is a secret task, and of course Liu Yun doesn't know that he is based on the data of the excellent tanks of World War II, so these half-truths and half-truths are the military of the United States and Soviet Russia, and they can't figure out the truth or falsehood.

"As early as the end of the European war, that is, in 1918, France had the Fcm-2C super-heavy tank, weighing 70 tons, with two 250-horsepower engines, a gun caliber of 75mm, and in recent years, some improved versions have even been equipped with 155mm guns."

When Liu Yun said this, he particularly emphasized, "As far as I know, the engine used in this tank and its improved version is derived from the German Zeppelin engine of that year, which is also the technical route for the development of new engines."

As soon as these words came out, everyone's heads began to come alive, and even the two German experts stopped talking against each other, but just thought hard about how to make it.

"In addition, in 1921, the French developed an infantry support tank, using the SRB prototype of Schneider-Renault, weighing 15 tons, power 180-250 horsepower, 75mm gun, because of the good effect, finalized in 1926, improved twice in 1930-1931, weighing 28 tons, armor thickness 40mm."

"In 1934, France once again drew up a new development plan, codenamed CharB1 medium tank, weighing 32 tons, engine 300-350 horsepower, gun caliber 47-75mm, is expected to be mass-produced next year, planning to produce 400-500 units within four years."

Before Liu Yun's words were finished, the two Germans were trembling, sweating like rain, and their teeth involuntarily rattled, Germany's old enemies were the French, and their Führer Hitler clamed for revenge and German revival every day, and the whole world knew that Germany and France would have a war, while the French had 70-ton tanks and 32-ton tanks, and they were simply frightened.

Looking at the performance of these two German goods, the other team members all understood, especially Major General Qin, who finally knew the original situation, and the "Sino-German joint research and development" really came into being.

If you change to yourself, the most advanced tanks are only a few tons, and the caliber of artillery is only 20-30mm, but the enemy has 32-70 tons, with a caliber of 75-155mm, and most of them are not much better.

Liu Yun didn't bother to pay attention to the ideas of these people, and wanted to carry out the strike to the end, "Britain has also drawn up three research and development plans this year, one is the improved version of the 'Matilda' tank, codenamed A12, weighing 27 tons, with an artillery caliber of 40-76mm, two 190-horsepower engines, and an armor frontal thickness of 104mm, which can be called the king of protection, and it is expected to succeed within three years."

"The second is the A20 program, the tank weighs 40 tons, two 350-horsepower engines, and the gun is 40-76mm, and the difficulty of research and development is not lower than our current tank."

"The last one is the focus of this year and next year, A9 cruiser tanks and A10 infantry tanks," Liu Yun's voice changed, "Britain has sent people to Soviet Russia to learn from this series of tanks."

"Ready to refer to the BT fast tank, design weight 15-20 tons, gun caliber 40-57mm, power 150-350 horsepower, has begun mass production, this year and next year is expected to produce 400-500 units, it is expected that after three years, once these models mature, they will be directly produced tens of thousands of units."

Since the liberal arts student is not an expert in the military industry, in fact, he still remembers wrongly, in 1937 the British only A13 cruiser, that is, the "Covenanter" tank, produced 1,771 units, and in 1938, the A15 cruiser, that is, the "Challenger" tank, produced 5,300 units.

At the same time, 8,275 units were produced in the 1938 A10 infantry type, the "Valentine" light tank, and in 1938-1939, the A12 infantry type, the "Matilda" II medium tank, 2,987 units were produced.