Since the invention of the artillery, recoil problems have arisen. In order to solve the recoil problem, heavy bases or reverse recoil re-entry devices have to be installed, making the gun stand either heavy or complex in structure, which seriously affects the mobility.

The huge recoil force of traditional artillery and the heavy gun mount have a great impact on the maneuverability and carrying capacity of the spider demon.

Recoil-free cannons use the principles of action and reaction forces to eliminate recoil. This will make the gun smaller, lighter in weight, simpler in structure, and more convenient in operation.

Carl Gustav’s recoilless cannon is one of the best. His combat history is almost as long as the AK series assault rifles. It is an extremely mature anti-armor weapon, named after the Carl Gustav factory.

Its structure is simple and beautiful, with three parts: gun barrel, firing mechanism, and aiming mechanism, and no redundant accessories. A simple triangle bracket can support it, and the diameter is large enough. By depicting the rifle, the shell can spin and improve accuracy.

The most important thing is that its loading method is similar to that of traditional artillery, and the structure of the shell is extremely simple, except that there is an additional launch cartridge, and the bottom of the cartridge is sealed with a light partition. After ignition, the partition is crushed by high-heat gunpowder gas, forming a back spray, achieving recoil-free firing.

The firing mode does not require complex piezoelectric fuses. It only requires a bottom fire to be placed on the side of the bottom edge of the shell and a gap is opened at the bottom edge to be used for positioning the bottom fire and firing needle.

The technical level, material level, ammunition level, weight level, and recoil-free cannon are extremely in line with Qin Song's requirements.

Especially for the material problem, the blue core alloy with light weight and high strength fully meets the standards, greatly reducing the burden on the spider demon and increasing the material capacity accordingly.

It can be said without hesitation that the spider demon equipped with a recoilless cannon will become a heavy firepower with super high maneuverability, which can be operated by individual soldiers and attacked the target anytime and anywhere.

Yes, magical creatures and scientific weapons are the complete version of the guerrilla tactical system.

"Everyone, the weapon problem has been basically solved, and the final test-fire experiment and measurement of the scale and range data are needed." Qin Song smiled and pointed at the location of Daotan Town with his hand: "This place will become our new battlefield. Whether it is an orc or a Holy Spirit Knight, you will feel an unprecedented pressure."

Qin Song's confidence touched everyone present. The Black Stone Collar is indeed weak, but in the light of wisdom, it contains infinite and huge potential.

"Qin, I believe in you and wisdom." There was a bright light in Liya's eyes, and her tone was sincere.

"Haha! I've said a long time ago, what the Holy Spirit, what orcs are. In our great wisdom of God, all of them will be destroyed!" Luna smiled proudly: "Let them feel the fear dominated by wisdom!"

"Wisdom..." Sir Weima looked at his daughter and suddenly felt very moved. He made the right decision at the beginning, and the charm of wisdom subverted his understanding of the world.

"Commander!" Harald and Sir Weimar had the same feeling. As a former Royal Navy who was deceived, he had tried to escape countless times and wanted to get rid of it. But now, he has seen the real weapon that is enough to compete with all the strength, but instead he feels that it is the favor of fate.

"Can this kind of annihilist be installed on a warship?"

"sure!"

Harald, who had never forgotten the admiral's dream, heard the definite answer and couldn't help but exclaim: "That must be the most powerful fleet on the sea!"

...

When Esrena led her family to Arab City, she went through nearly six days of voyage. Since the friendship pirates were masked and did not speak out, the navy inspected along the way automatically blocked the concept of "female pirates" and allowed them to arrive in Arabia smoothly.

Of course, the risk of being exposed at the port is very high. In the end, Esrena still implemented the decision to abandon the ship and landed from the Miles Mountains outside Arabia through small ship transportation.

After a day and night of trekking across mountains and rivers, the legendary trade city, Arabe, has finally arrived.

On the gravel-paved trade road, a trading caravan composed of pack horse caravans can be seen at any time, carrying all kinds of goods, with a hurry, but full of enthusiasm.

In addition, on the main road to the city, there were some foreign caravans, such as camel caravans. The riders had brown-black skin, tall and tall, different from mortals. They wore bronze helmets with black tail feathers inlaid, sat on saddles covered with garnets, and were covered with colorful blankets.

It is said that it is a nomad from the desert. They like camels. Even if they go out to do business, they always bring a camel caravan.

"Those guys are so dark." Yiluli, who held Little Joel's hand, looked at the black buddy on the camel curiously: "Their country must be very sunny."

"What are you talking nonsense?" Esrena, who led the team with a pack horse, covered her face with tulle, dressed in a simple manner, and looked at the city ahead: "Arabe is a veritable city of business. It communicates with the three kingdoms, the Kingdom of Tia, the Kingdom of Ferente and the fallen Kurminsk Empire. It is the pearl of the sea, ancient and long, magnificent and magnificent. Arabe's first consul, the Trade Order issued by Contos, formulated the four basic laws of freedom, trade, equality and contract, which made Arabe brilliant and prosperous to this day."

Yi Luli curled her lips and said nothing, but the gorgeousness and grandeur of the city in front of her was undeniable. At least she had never seen it in her experience.

A thick city wall made of white sandstone, forty feet high, surrounded by Arabia, with countless exquisite carvings, pack horses, flying birds, swimming fish, wolves, giant elephants, camels, and countless merchants dressed in strangely and look strangely, trading, talking, banquet, enjoying food, listening to songs, enjoying dancing...

The thick city gates inlaid with copper were open, and the guards wearing gilded armor and tassels were holding sharp spears in their hands. They were all majestic and looked at the merchants entering the city.

"Don't talk nonsense later." Esrena lowered her voice and warned Yiluli, afraid that this thorny head with a jumpy personality would cause some big trouble. Arab City welcomes merchants from all over the world, but she hates a person deeply - that is, pirates.

Any pirate who is verified will be tried and taken to the guillotine.

"Did you hear me? You said you?" Yiluli knocked on the little Joel's head: "Don't talk nonsense later."

“…” Esrena: “Can you stop hitting him in the head?”

When they left the Stone Islands, in order to reduce the burden, they only brought gold coins and property, and bought a few pack horses in the town along the way to carry them. The guards checked it out briefly and smiled with satisfaction - so many gold coins flowed into Arabia, it was worth the pleasure.

Of course, these beautiful and elegant female elves are also pleasing to the eye.

After checking, you pass through the city gate and you will be the place where you register your identity. Whether it is an individual businessman or a caravan, you must register the number of people entering the city, name of the caravan, or name of the chamber of commerce here.

After a series of tedious processes, the caravan named "Green" by Esrena officially entered Arabia.

After passing a bronze palace gate with flying bird patterns, buildings came into view. On both sides of the wide street, stone houses of different sizes and heights were evenly distributed. In the distance, there were slender and towering spires, lined up one after another, like a jungle.

All kinds of businessmen walked through the streets, and some women were lying on the exquisite balcony of the stone house, looking at it with interest. Here, you can see many people you can't see, such as short and solid dwarfs with red faces, tall and fair Ferents, as well as some brown people with thick and thick appearances in animal skins, and even some uncommon aliens who can't tell what kind of race they are, such as people with green vertical pupils and lizards, green skin and tall figures, and elf-like ears...

In short, here, Esrena felt very at ease. The elves walked on the street and would not attract too many people's attention.

Passing through a huge arcade street, you will come to a huge building with many surface openings. The lattice ceiling is full of bright and colorful paintings. Various trees, flowers and plants grow on the platform in front of the store. In the store, there are a wide range of goods and everything can be bought and sold.

Yi Luli, who had been dazzled by the eyes, kept talking excitedly, knocking Joel's head from time to time, forcing him to pay attention to what he was paying attention to.

"Hey, the elves from afar, Arabe welcomes you." A white young man with a small round hat and smiling face noticed Yi Luli, who was looking around in the crowd, and came up excitedly.

"I, Fox." He took off his little round hat and gave a graceful salute: "Is there anything I can do for you, this beautiful elf lady? I am the smartest guide with the best memory in Arabia."

"Which green onion are you? You don't look like a good person when you smile. Go away, get out of the way, a stinky man." Yi Luli glared at him and waved her hand impatiently.

"Hey, beautiful Elf Miss, it must be your first time in Arab City. A smile, a smile is the most popular expression here." Fox was not embarrassed and had a brighter smile on his face.

"Iluli..." Esrena patted Luna's shoulder, and a smile appeared on the corner of her mouth: "Hello, this is indeed the first time we are here in Arab City."

"You will definitely fall in love with this place, I promise." Fox smiled playfully, and took out a flower from his little round hat as if he was a trick: "Give it to you, the beautiful and elegant elf lady."
Chapter completed!