Wang Daquan thought about it, then shook his head and said: "Li Gongzi, it's not that we haven't thought of it, but how can these rockets weighing more than ten catties shoot far?" It's a pound-heavy rocket, and it's better for a soldier to shoot far with a bow! The thrust of this gunpowder is limited! ”

Lu Wenxin also nodded and said, "Lord Wang is right, doesn't the little brother really have a way to shoot these rockets weighing more than ten catties hundreds of steps away?" ”

Li Xiang smiled and said, "Ladies and gentlemen, I have already said just now that this rocket uses propellant, not gunpowder as everyone knows it now!" ”

According to the information provided by the super 3D printer, the earliest rocket artillery manufactured by the Soviets used a kind of smokeless gunpowder, with a range of more than 1,000 meters, and only the use of smokeless gunpowder is more realistic. Pen ~ fun ~ pavilion www.biquge.info

Of course, Li Xiang is also thinking that when the time is ripe in the future, he will use a super 3D printer to print an industrial machine machine, so that he can slowly manufacture a lot of industrial equipment, and maybe in a few years he will be able to manufacture a rocket with a composite solid propellant, and it is not impossible to have a simple jet engine.

In the 21st century, there are many aviation enthusiasts who can use a small machine tool and some ordinary materials to create a simple turbojet engine, which can of course be used on rockets. It's just that to make it, you need a machine tool, as well as materials such as steel and aluminum alloys.

Wang Daquan's question interrupted Li Xiang's thoughts, and after listening to Li Xiang's words, Wang Daquan wondered: "Li Gongzi, isn't it a tiger squatting cannon******?" Although this kind of gunpowder has greatly improved its performance compared to our previous gunpowder, it is still not possible to use it as a propellant for rockets! ”

Li Xiang came back to his senses and saw that everyone was puzzled, so he said: "Speaking of which, it is also an unexpected discovery, I found a way to make a smokeless gunpowder from dragon's whisker grass, which is made of dragon's whisker grass, and after mixing it with several acids, you can get a gelatinous thing, and finally dry this thing and press it into spherical xanthate, you can get a new gunpowder, which is more violent, and should be used as a propellant for rockets, and can also be used as a ****** for artillery. However, I also tested it preliminarily, and I still need to study and improve it by the Ordnance Superintendent. ”

Wang Daquan said excitedly: "Oh, Li Gongzi, can this matter be taken seriously? If this is the case, not only can you make the rocket launcher you said, but I think the range and power of the artillery can also be further improved! ”

Li Xiang nodded and said, "Of course, in fact, as long as everyone exerts more ingenuity and conducts more experiments, there will be more and better inventions." I'm just throwing bricks and bricks, and it's up to you to make it or not. ”

In fact, rocket artillery is not too difficult to manufacture, even much easier than barreled artillery, of course, the original rocket artillery also has many shortcomings, but in this era of cold weapons, it should be able to play a relatively large role, even if its accuracy is poor.

Rockets were invented by the Chinese, but ancient Chinese rockets, the technical level is still relatively low, so the power is not great, ancient Chinese multiple rocket launchers in the Ming Dynasty, it is called a swarm, is the ancient Katyusha rocket artillery, a launcher with multiple rockets. The Ming Dynasty's "Wubei Zhi" has a more detailed introduction to a swarm of bees, and there were many specifications at that time, from 3 consecutive rounds of divine machine arrows to 100 consecutive rounds of hundreds of tigers running together, all of which belong to this category.

In the famous military work of the Ming Dynasty, "Wubei Zhi", there are many rocket pictures. Such as flying knife arrows, flying spear arrows, swallowtail arrows, etc., these are no longer ordinary arrows. Another example is the "Fire Crossbow Meteor Arrow" that fires 10 arrows at the same time, the "Swarm of Bees" that fires 32 arrows, the "49 Arrows Feilian Arrow" that fires 49 arrows, the "100 Arrows Arc Arrow" that fires 100 arrows, and the "Hundred Tigers Rushing Arrows". Most of them put arrows in barrels, connect the medicine wires on a bus, ignite the bus, transmit to each arrow, and shoot out in one salvo.

The arrow shoots at the enemy's gunpowder arrows, which is the same as the firing principle of modern rockets, but the rockets at that time were small and lacked lethality, and were at most used to set fire to the enemy or kill the enemy like arrows fired from bows. For a number of reasons, the rocket was not able to develop vigorously at that time.

Li Xiang felt that this was a pity, if the Southern Song Dynasty government at that time could vigorously develop firearms, especially artillery and rocket weapons, then there would be no problem at all in defeating the Mongol cavalry. Since he has traveled to this magnificent era, Li Xiang can no longer let the original history repeat itself, he wants to help the Great Song Dynasty develop a powerful military industry and defeat the Mongol Empire, rocket artillery is a relatively easy and quick choice.

As early as 1805, the British created a practical Congreve rocket with a range of 1,800 meters, which was used as a shipboard weapon when the British attacked the French port of Brun in 1806 and Copenhagen in 1807, and the British Navy fired more than 20,000 rockets at Copenhagen, almost leveling the city. Later, this rocket artillery was equipped with army cavalry artillery units to form an independent rocket artillery company. It was also used to attack the Americans, and although this primitive rocket launcher had many shortcomings and was difficult to compare with the barreled artillery in terms of power and accuracy, its potential was enormous.

Despite the fact that liquid propellants produce certain advantages over solid propellants in terms of energy and performance, the main disadvantage of using liquid propellants is that they increase the structural complexity of the rocket engine and, at the same time, the cost of the rocket.

Solid propellants, on the other hand, have the advantage of being simple and reliable to use, which is very suitable for an artillery weapon that requires a large number of equipment. In addition to the accuracy and range of rocket artillery engaged in the early Germany and the Soviet Union, the biggest problem was that the shape of their rockets was not very aerodynamic, and their rockets were like small gas canisters, short and thick, which really affected the range and accuracy.

The real high-performance rocket should be a slender body and a pointed head, from front to back is the warhead and the engine part, especially the design of the engine tail nozzle of the rocket is very important, the role of the tail nozzle is to convert the heat energy and pressure energy into the kinetic energy of the rocket. Therefore, the tail nozzle is designed as an opening with a gradually decreasing cross-sectional area, and when the air flow is ejected out of the narrow section of the tail nozzle, the volume will expand rapidly, and the temperature and pressure will decrease, so as to obtain extremely high acceleration.

Li Xiang's words gave everyone a lot of confidence, and Wang Daquan also patted his chest and said: "Okay, just for Li Gongzi's words, I, Wang Daquan, am desperate to make this rocket launcher!" ”

Li Xiang nodded and said: "Firearms are not more dangerous than others, so Lord Wang must pay attention to the safety in the research and manufacturing process, why not use the current black powder, in addition to the lack of thrust, there is another important reason, that is, it is easy to catch fire and explode." ”