The 107 rocket launcher does not look like a farm tool at all. At least Ren Di saw the murderous aura from this iron tube. But the structure of this thing is simple, but it is not wronged at all, the white line is aligned when it is launched, and there are threads in the iron cylinder. You can pack 12 packs at a time. Since there is no recoil, there is no need for a retraction machine, and there is no need for a gun mount, which is much simpler than the artillery structure.

The technology of this thing is all in the propellant. If you really want to force rocket artillery in the colonial era, it is okay, but the price of rocket artillery is a few taels of silver per shot. As soon as the cannon fired, it was ten thousand taels of gold. In the 21st century, folk science and technology enthusiasts make rockets as nitrate sugar. Sugar and nitride are mixed together and then pressed into a column of medicine. Hit an inner caliber in the middle. If the proportion of this dangerous goods is not matched properly, it will become explosives.

The war must not be wasted like this, alcohol is used as a burning # bomb, sugar is used as gunpowder, if this is fought, the firepower will be covered, and the country will not be bankrupt.

As for the solid propellant of a real rocket, there are two kinds, one is a homogeneous propellant, and the other is a composite propellant. Homogenization includes monobatic emission # drug, and bibase emission # drug. Now what is being transported to Ren Di in the rear is a double base hair # shot, nitrification # glycerin and nitration # cotton evenly mixed hair # shot. Both of these compounds are high explosives, and they will release a large amount of gas when burning, but as long as the mixing ratio is appropriate and a little additives are added, they will not explode and burn instantly.

From the nature of these two dangerous goods, it can be seen how complex the number of tests needs to be and what level of chemical capacity is required. Of course, this kind of propulsion is naturally not comparable to the black # gunpowder rocket that can only shoot a thousand meters.

The 107-millimeter rocket, weighing 19.2 kilograms, has a maximum range of 8.5 kilometers, which is close to the effective range of 4.9 kilometers for mortars. The artillery carriage can be disassembled, a weapon designed with infantry # transport capabilities in mind. As soon as this thing appeared, the recoilless cannon of the Republican Air Force could be withdrawn from the onboard weapon sequence.

However, there is another disadvantage of the double base hair # ejaculation, that is, the shape of the medicine column cannot be too large, otherwise it is easy to shatter, and what will happen if it is broken? If the inner diameter of the jet in the center of the column is suddenly blocked due to breakage, the propellant energy cannot be released outside the vent and is stored in the combustion chamber of the column, and the rocket will explode directly.

So another solid propellant is being developed in the rear, bitumen mixed with potassium perchlorate, a composite hair # shot. The future development trend is the mixture of polymer aluminum powder refined in petroleum and solid oxidant powder to form a medicine column, which is bonded together, just like the oxidant particles in rubber tires. The strength is sufficient to make a large column of charge, which can be used as a propellant for solid-fuel rockets. Of course, this degree of grinding, the degree of particle size. The standard required for missiles is maddeningly fine.

This kind of good thing must be installed in large quantities, and not only that, but Ren Di's Northern Field Army also made new things. Deployed near Shijiazhuang. Let's not talk about that for now.

Look to the northeast here. The fear of the end will not be diminished by a year delay. On the contrary, it will brew more and more intensely. The Republican Army did not enter the Northeast through Shanhaiguan, but all indications indicate that the Republican Army's entry into the Northeast is unshakable. So the Northeast did not alleviate the chaos because of the late arrival of the Republican Army, on the contrary, the chaos and fear intensified. So far, the Northeast Army has not been able to prove that it can stop the erosion of the Republican Army.

It is okay to make an army full of a sense of defeat suddenly muster up courage, rigorous training to make the army forget the fear, and the enjoyment between training to numb the fear. Wu is doing this in the northeast now, but this sudden courage will soon be exhausted if it is not proved by victory. When you rethink it, you get even more nervous. Because the rigorous training did not improve his confidence to defeat, after the pleasure of spending all day and drinking, he was even more afraid of the approaching end of the world. It's like boiling a frog in warm water. If it's boiling water, you will get all the courage to jump out, but if it turns into a slow wait, it will be miserable.

No one can be on high alert for long periods of time. The Wu family's financial resources in the northeast could not sustain such a continuous use of material resources to stimulate the army.

"If this continues, quietly waiting without any countermeasures, my army will retreat without a fight." Wu Shijie said indignantly. Xiao Xuan (now the commander of the Bohai Hai Song Fleet) frowned and said: "Our suggestion is that you shrink your forces to abandon the Beijing-Tianjin region, and shrink your forces to the Shanhaiguan generation, and the current Beiping is a strategic burden for you. ”

Wu Shijie nodded, then shook his head again and said: "It is strategically desirable to give up Beiping, after all, it is not good for us here, but as long as our army gives up this big city without firing a shot, Liao Province is already panicked." This step back is likely to be the fate of Fu Jian who wanted to throw a whip back then. ”

The atmosphere in the quaint mahogany room was stagnant, and the white gas in the teacup rose faintly, and then suddenly became chaotic as Xiao Xuan raised his head. Xiao Xuan looked at Wu Shijie and said, "So what are you going to do?" Hai Song currently has no intention of sending troops to the Eastern Mongolian region. ”

Xiao Xuan still didn't say a word, that is, the problem of the supply line, once Hai Song invested a lot of troops into the inland war, such a long supply line, Hai Song was not at ease, because Wu Shijie's Ming army is now in the eyes of the master of Hai Song, and in case of defeat, the land supply line is copied back road, and the Hai Song troops fighting in Dongmeng will be completely lost on the main road.

Because the opponent is Ren Di, Hai Song does not dare to bet.

Wu Shijie showed a look of disappointment in his eyes, and then said, "Is the swordsman plan okay now?" ”

Xiao Xuan's face suddenly appeared, and he said: "You are pinning your hopes of taking the initiative to attack and win here, with all due respect, the appearance of the "Swordsman" now will only give you one less hole card to win." It's extremely penetrating, but your soldiers can't effectively coordinate with its attacks. ”

Wu Shijie said: "Are you just waiting for my knife to become dull? Xiao Xuan said: "I am your military adviser, I can only tell you militarily that the success rate of your military adventure is not high." ”

Wu Shijie is going to take a risk after all. No regime can afford the psychological pressure of waiting to perish. If you don't explode in danger, you disintegrate under pressure. A steam monster rumbled along the railroad tracks with a series of combat wagons in Shanhaiguan.

Ironclad trains, real land warships, human technology in this era can drive the largest tonnage machinery on land. The Liao army's ironclad train technology is derived from the Hai Song Dynasty, and the front steel plate is designed with an inclined plane like a tank, and if you don't look at the rails, this thing is like a long heavy tank. On the twenty-meter-long carriage at the nose, three rotating turrets stand on it. The carriage is fully covered with steel plates, and huge rivets can be seen in the splicing between the steel plates. Multi-riveted steel style, with the rotation of the steel wheel, the feeling of black iron is full.

This ironclad train has a strong main gun and a large number of rapid-fire guns. The reason why it was named after the swordsman was to hope that it would be like an indestructible sword to achieve victory. When such a monster ironclad train arrived in the Beijing-Tianjin area, the Wu family's army was shocked by their own war weapons, and the originally low morale rose. This is like a spiritual totem that reunites the Wu family.

Xiao Xuan watched the imposing ironclad train arrive, and observed with a cautious look. Now the land battle that broke out on the land of the Ming Dynasty has exceeded the expectations of the military experts of the Hai and Song Dynasties, and the degree of technological leap in the weapons of the two sides is dazzling. "I hope we can win," Xiao Xuan said as he looked at the cheering crowd.

Coincidentally, in the railway station of Shijiazhuang, the same train of steam monsters drove over. On the North China Plain is the royal road for tanks to gallop. When the designers of Haisong designed an ironclad train with a vision that transcended history. Ren Di, who is also a traverser, also made an ironclad train for the Northern Campaign. The Republican Army, the largest land unit ever built, was named Yoyuki by Ren Di.

It is recorded in "Warring States Policy: Western Zhou Policy": "Chu has a person who raises the base, is good at shooting, goes to the willow leaf and shoots it in a hundred steps, and hits a hundred shots." ”

The engineers of the Republic are very proud of the creation of this hideous weapon. The soldiers of the three companies on the train shouted with high morale when Ren Di came to watch: "Use me in the first battle, and I will win." ”

Ren Di boarded the ironclad train and said: "A weapon can pry the situation on the battlefield, but it can also be used as a pillar to determine the victory of the war. Looking at this black iron weapon, Ren Di said to the soldiers: "Comrades, the weapon is in the hands of people. People are more decisive than weapons in war. Don't be proud, pride is easy to be negligent, negligence will make us lose other comrades, don't be discouraged when there is a problem with this weapon, don't decide the fighting mood for the weapon, as long as you are familiar enough with this weapon and calm down, many problems can be investigated. ”

Four months after the confrontation in North China, in the early summer of June 1705, the Battle of Beijing and Tianjin began. The Wu army, which occupied the Beijing-Tianjin area, began to assemble. When the plane detected the strange armored train of the Wu Jiajun in the Beijing-Tianjin area, Ren Di, who had just obtained a powerful weapon, looked at the steel monster sketched by many pilots. There was a fog in my heart.

The two advanced visions collided in the land war, and no one wanted to crush the opponent with the advanced era. And the war also attracted all the industrial powers on this planet. The newspapers of the southern capital wrote impressively about "Armageddon in North Asia".

The power of the southern capital has been compressed to the limit at this time. In the south, Guangnan and Fujian provinces have successively planted red flags, and the only provinces that the Ming regime can now govern are Jiangsu and Zhejiang provinces. The red flag of the workers' and peasants' regime was planted in the south to the Leizhou Peninsula and the Qinghai-Tibet Plateau in the west, and it is ready to climb Mount Everest this summer to plant the flag. On the western border of the Aral Sea, after the implementation of a supply change for the local Ming army...... The territory of the Ming Dynasty, from the Ural Mountains and the Caucasus rivers to the Aral Sea region of the Middle East, has been completely inherited by the Republican Army. As soon as the Northeast Campaign is completed, it will be obvious that a unified country occupying the eastern half of the world island will be formed.

Now the new cabinet of the Ming Dynasty is already discussing whether to move the capital and move in. If Wu Shijie can win the Northeast War. The Ming army's fleet would escort government dignitaries north.