However, Xia Qiya liked it very much, and bluntly said that this sword was very in line with her rough and unruly and murderous wild temperament.

Qin Song agreed.

The rouge morning glow, like a piece of soft velvet, sticks to the gray and black sky. The humid air is cool but not biting, but it makes people feel refreshed.

Winter is coming to an end.

The weeds on the side of the road stubbornly sprout from the soil, hanging with crystal clear morning dew.

In the open space outside the barracks, Leah, dressed in the [Heavy Armor of the Doomsday King], wore a fluttering cloak, standing next to her beloved warhorse.

"Leah, don't be afraid of her. Isn't it just a princess? ”

Alice, who got up early to see her off, her little face was red from the cool breeze, and there was a trace of mist hanging on her long eyelashes, cheering for Lia.

"Alice is right, what's wrong with the princess? If she dares to take out the princess shelf, you will come back directly, and we will not talk about it, how to love. ”

Luna held her head high with her chest held high, and she completely forgot that when she was in the royal capital, she heard the princess traveling, and she tried to squeeze through the crowd, just to see the princess's face, and her head fantasized about whether Her Royal Highness would notice her.

Luna, you're inflated.

Qin Song complained silently in his heart, looked at Liya and nodded: "Liya, I believe you can handle it." Remember that sentence, neither humble nor arrogant, with a clear conscience. In addition, Hunn will lead the special forces team to temporarily move to the canyon with the main crystal so that they can stay in touch and deal with any eventuality. ”

As the territory expanded, the resonance crystal that was picked up from the hive began to cover a limited area. After testing, the farthest communication distance is from the Blackstone Collar to the Black Forest Castle.

The crystal is equivalent to a communication base station, and Leah goes to Cesar to negotiate, and if she wants to maintain communication, she must transfer the location of the base station to ensure coverage.

This is also the main reason why Qin Song was unable to contact Harald, who went to sea, for remote command.

"Qin, Alice, Luna. Don't worry. Leah turned on her horse in a dashing manner, patted the oath blow hanging by her side, and raised a confident smile: "She is a Templar favored by the Holy Spirit, why shouldn't I? ”

"You all don't worry, with me!" Xia Qiya, who also turned over and got on the horse, patted her towering chest: "I have also fought with the princess, she still has some skills, but well, I am not what I used to be." Hehe, I really want to find a chance to have a good fight with her again. ”

Bringing Xia Qiya to negotiate is not only because Xia Qiya has a high military value, but also for another purpose, that is, to make the princess clearly understand that we are infidels.

"Alright, go back. I hope that when I return, I will hear good news from you. ”

"Have a nice trip!"

"Triumphant!"

Dressed in the morning light and facing the morning wind, under the escort of hundreds of knights, Leah and Xia Qiya waved goodbye and bravely embarked on an unknown journey.

Watching them fade away, Luna rubbed her cold, numb face, "Well, it's almost time, it's time for me to go teach the students." Qin, what about you?"

"Time is tight, and the task is heavy. We have to go back to the castle and have an important experiment to be carried out today. ”

Through Elena's vision, Qin Song knew that they were on their way back. The battle situation in Arabe City is not optimistic, and the next voyage will require both ships and weapons to be well prepared.

Veronica's psychic regression ability is indeed a miracle skill. After continuous research and experiments, a lot of progress has been made.

The first is the additional principle of the backtracking state to the object, for example, a complex object requires Veronica to understand all its structural composition and working principles, if there is a detail missing, then the detail cannot be restored when backtracking.

Taking bullets as an example, if Veronica only understands the warhead and cartridge case, but does not understand the primer, primer cup, and blast magic powder, then even if the retrospective state is applied, the fired bullet will only be traced back to the warhead and cartridge case, and the details such as the primer will be missing, that is, it will be invalidated.

Maybe that's why it's called Psychic Regression.

Next, the measurement of the backtracking effect, including duration, interval, etc., was recorded one by one, and several feasible schemes were sorted out.

The first is a new type of artillery with long firing intervals, long distances, and powerful firepower.

The principle of action of artillery is actually similar to that of firearms. However, this does not mean that the gun can be used as a gun by enlarging it in equal proportions, and it involves the need for problems, such as the strength of the barrel, the recoil treatment, the way to reload, and so on.

Among them, the barrel strength can be made of high-strength multicolored alloys, and the loading method is not too difficult. The hardest thing is the handling of recoil.

Early artillery was very bulky, the barrel and gun carriage were usually one, there was no anti-recoil device, purely relying on weight to digest kinetic energy impact, poor maneuverability, low reliability, after firing the gun carriage would be displaced, manual reset was required, resulting in a low rate of fire.

In order to solve the problem of recoil, the rack decapitation gun appeared, that is, the slide rail was installed on the rigid gun carriage, with spring and hydraulic pressure as the working fluid. However, because of the torque, the recoil absorbed is not much, and the advantage is that it can be automatically reset, which greatly increases the rate of fire.

But the cannons are suitable for use as naval guns, and most of the recoil can be transferred to seawater. In Qin Song's plan, landing operations were inevitable, so the limitations of the erection and retreat artillery without mobility were too great.

Therefore, in the end, Qin Song thought of retracting the cannon, recoiling the barrel when firing, and then using the re-entry device to restore the barrel.

Is it difficult?

It's not hard!

Complex hydraulic air stand-off machines are indeed complex processes and cannot be manufactured. But in the case of understanding the principle, the simple and easy method has been studied by someone in the previous life.

That is the simple spring reenter, that is, the reentry spring is wound around the barrel to form a concentric circle structure, which does not affect the moment of shooting accuracy, and the body barrel rebounds quickly and has an excellent rate of fire.

Of course, the disadvantages are also obvious, the impact capacity of the spring is low, and it cannot be applied to large-caliber guns.

Considering that sea monsters are mainly numerous, and there are few large individuals, the large caliber of justice seems to be overkill. Well, it is a wise choice to appropriately reduce the caliber and increase the rate of fire and accuracy.

After the completion of more than thirty prototype experiments with the miniature version of the tube decommissioning, the basic structure was determined. It consists of a body tube with a limit snap ring, a magic iron re-entry spring, a concentric sleeve, a trunnion base, a hand-crank axle to adjust the firing angle, a standing hoe and a firing mechanism.

The final product is a 42mm caliber rear-loading tube cannon, in order to increase the power, the shell has been improved, subdivided into a launch section and a warhead, the warhead is filled with blasting magic powder and shrapnel, and there is a hidden firing pin in the warhead, which is automatically detonated when landing or hitting the target.

Since it is a new type of weapon, the manufacturing experience is limited, and there must be problems with reliability, which cannot be solved overnight, and it is necessary to find and solve problems in use for a long time, solve them, and improve them step by step.

However, it should be enough to deal with specific targets such as jellyfish heads and shark trolls.

With the artillery out of the way, the next step is to deal with the high-velocity machine guns that specialize in the sea monster swarm.

Compared to artillery, the machine gun had another problem, the rate of fire of the machine gun was so fast that the backtracking attached to the bullet did not have enough time to take effect. However, if you give the backtrack enough interval to take effect, the rate of fire will inevitably decrease.

For a bullet with a caliber of 8 mm, the additional retrospective state can last for nearly an hour, and the retrospective takes effect in about 1-2 seconds after it is fired. In these two seconds, not only the rate of fire is affected, but the flight distance of the bullet is greatly limited.

It's like a paradox that can't be both.

It has also become the biggest problem at present.

That's why Leah had that sentence before leaving, waiting for your good news.