The 107 rocket launcher doesn't look like a farm tool at all. At least Ren Di saw murderous aura from this iron tube. But it is said that the structure of this thing is simple, but it is not unfair to it at all. When it is launched, the white line is aligned, and there are threads in the iron tube. It can be equipped with twelve consecutively at one time. Because there is no recoil, there is no need to retreat the plane or the gun stand, which is much simpler than the gun structure.

The technological content of this thing is all about the propellant. It is also OK to force rocket launchers in the colonial era, but the price of rocket launchers is a few taels of silver per launch. A cannon is ten thousand taels of gold when it fires. The 21st century folk technology enthusiasts make rockets with nitrate. Sugar and nitrate are mixed together and then pressed into a medicine column. An inner caliber is made in the middle. If the proportion of this dangerous product is not well matched, it will turn into explosives.

War must not be like this. Alcohol is used as a burning bullet, and sugar is used as gunpowder. If this fight is done, the firepower will not be covered, and the country will not go bankrupt.

As for the solid propellant of real rockets, there are two types, one is a homogenous propellant, and the other is a composite propellant. The homogenous includes a single-based launch drug and a double-based launch drug. Now the rear transported to Ren Di is a double-based launch drug, and a uniformly mixed launch drug with nitrifying#glycerol and nitrifying# cotton. Both compounds are strong explosives, and a large amount of gas will be emitted when burned, but as long as the mixing ratio is properly added, it will not explode and burn instantly.

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

The 107mm rocket weighs 19.2 kilograms, with an ultimate range of 8.5 kilometers, and is close to the mortar accuracy and effective range of 4.9 kilometers. After exceeding this range, the deviation will cause a landing error of 50 meters and 200 meters. The cannon vehicle can be disassembled, a weapon designed with full consideration of the infantry's # transport capability. Once this thing appears, it makes the Republican Air Force extremely painful and recoil-free cannons can exit the airborne weapon sequence.

However, there is another disadvantage of double-base # injection medicine, that is, the shape of the medicine column cannot be too large, otherwise it will be easily broken. What will happen if it breaks? If the injection inner diameter of the center of the medicine column is suddenly blocked due to breakage, the propellant energy cannot be released outside the nozzle and accumulated in the combustion chamber of the medicine column, and the rocket will explode directly.

Therefore, another solid propellant behind is being developed, mixed with asphalt and potassium perchlorate, and a composite #injection drug. The future development trend is the drug column formed by mixing polymer aluminum powder extracted in petroleum and solid oxidant powder. This drug column is bonded together, just like there are oxidant particles in rubber tires. The strength is sufficient to make a large drug column as a propellant for solid fuel rockets. Of course, the degree of grinding, particle size, and the standards required by missiles are so exquisite that it makes people crazy.

This kind of good thing must be installed in large quantities. Not only that, Ren Di's Northern Field Army also created new things that were deployed near Shijiazhuang. I won't talk about this for the time being.

The eyes turned to the Northeast. The fear of doomsday will not fade because the doomsday is late for a year. On the contrary, it will be brewing more and more intense. The Republican Army did not enter the Northeast from Shanhaiguan, but all signs indicate that the Republican Army's entry into the Northeast is unshakable. Therefore, the Northeast did not alleviate the chaos because of the Republican Army's late arrival. On the contrary, the chaos and fear will become more and more intense. So far, the Northeast Army has not proved that it can block the erosion of the Republican Army.

It is OK to make an army full of failure suddenly muster up courage. Strict training makes the army forget their fear, and enjoy the training intervals to paralyze fear. This is what Wu did now in Northeast China, but if there is no victory to prove it, it will soon fade away. After rethinking, it will become even more anxious all day long. Because rigorous training does not enhance its confidence in defeating, after the enjoyment of the world of devotion, it is even more afraid of the end of the end. This is like boiling a frog in warm water. If it is boiling hot water, all the courage will rise up, but it will turn into a slow waiting, which will be miserable.

No one can be highly alert for a long time. The Wu family's financial resources in the Northeast cannot maintain such continuous use of material to stimulate the army.

"If this continues, wait quietly without any countermeasures. My army will retreat without fighting." Wu Shijie said angrily. Xiao Xuan (now the commander of the Bohai Sea Song Fleet) frowned and said, "Our suggestion is that you will shrink your troops and give up the Beijing-Tianjin area, and shrink your troops to Shanhaiguan. Now Peking is a strategic burden for you."

Wu Shijie nodded, then shook his head and said, "It is strategically advisable to give up Peiping. After all, this place is not good for us, but as long as our army does not fire a shot, the Liao Province is already in panic. This step back is likely to be the end of the attempt to whip Liu Fu Jian back then."

The atmosphere in the quaint mahogany room was stagnant, and the white air in the teacup rose, and then suddenly became chaotic as Xiao Xuan looked up. Xiao Xuan looked at Wu Shijie and said, "So what are you doing? Hai Song has no plans to deploy troops to the Dongmeng area at present."

Xiao Xuan didn't say anything, that is the issue of the supply line. Once Hai Song invested a large amount of troops to the inland war, Hai Song was worried about such a long supply line, because Wu Shijie's Ming army was now a fight in the eyes of Master Hai Song. If he was defeated, the land supply line was trampled on the rear, the Hai Song troops fighting in Dongmeng would be completely thrown on the main road.

Because his opponent is Ren Di, Hai Song dared not bet.

Wu Shijie showed disappointment in his eyes, and then said, "Is the Swordsman's plan OK now?"

Xiao Xuan showed a sudden look and said, "You are placing your hope of winning the initiative. IMHO, the appearance of the "Swordsman" will only reduce you one winning trump card. It has a strong ability to penetrate, but your soldiers cannot effectively cooperate with their attack."

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 from a military perspective that your military adventure has a low success rate."

After all, Wu Shijie had to take a risk. No regime could withstand the psychological pressure of waiting for destruction. It would not erupt in danger, but would disintegrate under pressure. A steam monster in Shanhaiguan rumbled and drove over the railway tracks, rumbling over the rails.

Iron armor trains, real land warships, in this era, human technology can drive the largest tonnage machinery on land. The Liao army's iron armor train technology comes from Haisong. The steel plate on the front of the car adopts an inclined design like a tank. If you don't look at the rails, this thing is like a long heavy tank. On the 20-meter-long car front, three rotating turrets stand on it. The car is fully covered with steel plates, and huge rivets can be seen in splicing between the steel plates. The multi-rivet steel style is full of black iron.

This iron-armored train has a powerful main gun and a large number of rapid-fire cannons. The reason why it was named Swordsman was that it hoped to win like an invincible sword. When such a monster iron-armored train arrived in the Beijing-Tianjin area, the Wu family's army was shocked by its own war weapons, and its originally sluggish morale rose. This was like a spiritual totem that recondensed the Wu family army.

Xiao Xuan watched the fierce armored train arrive and observed with a cautious look. Now the land battle broke out on the land of the Ming Dynasty has exceeded the expectations of Haisong military experts, and the level of technological leap in combat between the two sides is dazzling. "I hope you can win." Looking at the cheering crowd, Xiao Xuan said so.

Coincidentally, the same steam monster drove over at the railway station in Shijiazhuang. The North China Plain is the kingly way for tanks to gallop. Dang Haisong's designer designed an iron-armored train with a perspective beyond history. Ren Di, who is also a time traveler, also built an iron-armored train for the battle in the north. The largest land unit in history, named Ren Di by Ren Di.

"The Strategies of the Warring States: The Strategies of the Western Zhou Dynasty" records: "There were those who were nourished by the roots in Chu who were good at shooting. They removed the willow leaves and shot them in a hundred steps, and they hit them in a hundred shots."

The engineers of the Republic were very proud of creating this hideous weapon. The soldiers of the three companies on the train shouted with high morale when Ren Di came to watch: "I will win the first battle."

Ren Di boarded the iron armored train and said, "A weapon can leverage the situation on the battlefield, but it can serve as a pillar to determine the victory of the war." Looking at this black iron weapon, Ren Di said to the soldiers: "Comrades, weapons are in the hands of people. People can determine war more than weapons. Don't be proud. Pride is easy to neglect. Negligence will make us lose other comrades. Don't be discouraged when there is a problem with this weapon, and don't decide the fighting spirit for the weapon. As long as you are familiar with this weapon and calm down, many problems can be investigated."

Four months after the confrontation in North China, in early June 1705, the Beijing-Tianjin Battle began. The Wu family army occupying the Beijing-Tianjin area began to assemble. When the plane reconnaissed the strange armored train of the Wu family army in the Beijing-Tianjin area, the Rendi command center had just obtained a powerful weapon and looked at the steel monster sketched by several pilots. There was a fog in his heart.

Two forward-looking eyes collided with thoughts in land wars, and no one could imagine crushing their opponents with advanced times. The battle also attracted all industrial forces on this earth. The newspapers in Nandu suddenly wrote "The Great Battle of North Asia".

The power of the Nandu was compressed by the limit at this time. The southern Fujian provinces in Guangnan and Fujian have successively planted red flags, and the Ming regime now has only the jurisdiction of Jiangsu and Zhejiang provinces. The workers and peasants regime has the red flags in the south to the Leizhou Peninsula, the western part of the Qinghai-Tibet Plateau and is preparing to climb Mount Everest to plant the flag this summer. After the western border of the Aral Sea, the local Ming army has been replaced with supplies... The Ming Dynasty's area from the Ural Mountains Caucasus River to the Middle East Aral Sea region has been completely inherited by the Republican Army. As long as the Northeast Battle is completed, it is obvious that a unified country occupying the eastern half of the world island will be formed.
Chapter completed!