PS: Again, sweet potato = sweet potato, dragged out by mistake ~

"Increase the range of the artillery?" Su Fan walked over, looked at these strange metal tubes, and let the shells Zeng Cheng As far as she knew, in addition to the bottom row of extended-range bullets, there was only an electromagnetic cannon, as for the desperate loading of the propellant? Ten times the propellant can double the speed of the cannonball, you can calculate it yourself, it is very unreliable to rely on increasing the propellant.

Su Fan looked at these steel pipes, and felt that she had a sense of déjà vu, but she couldn't think of where she had seen them, they were very familiar, but she couldn't remember them, so she could only ask shamelessly: "Fett, how can this thing be..., why is it not a cannon?"

"Wow, hahaha, let me show you my philosophy!" said Fett, smugly.

Su Fan looked at this scientist from another world with anticipation, but then he was disappointed, why? The technology tree is crooked...This kind of cannon invented by Fett has appeared on the earth, and Su Fan also has a new type of cannon with the concept of this cannon, this is a graded acceleration cannon, a symmetrical launch tube is installed on the side of the cannon body, and the moment the cannonball flies by, it triggers the burst of projectile and accelerates the cannonball again, this kind of segmented acceleration is used on the electromagnetic cannon, but the key is that Fett uses explosives! It's a 200mm V3 cannon...

"This cannon is 200 meters long, it needs to be fixed on a shelf, although it is relatively bulky, but it can hit 300 kilometers away in one shot, and the rate of fire is not so slow, it can fire hundreds of tons of shells a day..." He began to brag.

It's not a boast either. This thing does work. During World War II, the head of state had this kind of multi-section and segmented acceleration cannon, but there was only experimental data, but the data in the laboratory was similar to the required data, not to mention that this shijie has magic, and magic can solve many things that are difficult to solve scientifically, such as how to detonate the propellant in the subdivision at the right time and the ultra-high-strength pipe body material or something.

"Why, if you like it, when will you be able to get it?"

"Soon, I've already debugged the magic array or something. As long as you can find a place to assemble the cannon!" Fett didn't notice Su Fan's tone, still talking there, he was fantasizing about whether he would go down in history after he invented a super cannon with a range against the sky?

Without disturbing Fett's interest, Su Fan approved a hillside and a group of slaves to let him toss this black technology by himself, and she went to the airship factory again, the fourth monolithic airship is being assembled intensively, and when this airship leaves the factory, the factory can stop temporarily. It's useless to ask for so many airships now, and the usual maintenance of these airships also costs a lot of money. It's not cost-effective to build so much.

There are now about 50,000 people in Radiation City, most of whom were originally homeless people, and after entering the city, they were tied up by the city government with various debts, some people chose to continue their old business - farming, and some people picked up various tools and entered the newly developed mines to mine.

In addition to these homeless people, the four lords moved to this city for some reason, and the lord was slightly higher than Fett, no status, no fiefdom, just relying on a small business to make a living, one of the three super Hercules was rented by these four lords, and the huge and fast airship became a tool for them to transport goods, and transported food, cloth and other civilian goods to the city in a steady stream every day.

Now the city's economic source is mainly to develop the mines next to the city, and then sell ore to obtain, but the funds obtained can barely maintain the operation of the city, as for the redevelopment of their own money, the city now has a population of 50,000, and most of them are homeless, the homeless people are a group of people who are very difficult to manage, they are eager for the protection of the city, but if there is no strong violent organ to restrain it, their damage to the city is also great.

Now there are only more than 200 marines directly under Su Fan's hands, so many people can't look down on the city at all, they can only play a temporary firefighting team, where something happens and rush over to solve the problem, but the displaced people, you know, don't look at the poor one before entering the city, but in fact, they are all some unruly guys, who want to be free and want to get the protection of the city, as a result, there have been many conflicts between the marines and the residents of the city, and even several times some mobs have directly resisted.

But the result is a cup, even if these mobs rely on the heavy bunkers to resist, but under the siege of a group of fifth-level and above fighters, they were finally defeated and had to surrender, Su Fan was not merciful to them, and directly hung all the people who participated in the riot and their relatives within several generations on the gallows, and turned the main culprit into an undead, now the people in the city are a little more honest, of course only a little, only to surrender immediately after seeing the marines, the law and order situation is as bad as ever.

Any facility is around the service of the powerful, even those countries on the earth that claim to be free and democratic are almost the same, let alone here, there are more than a dozen marines patrolling around Su Fan's comprehensive tower day and night, fifty marines are guarding the alchemy laboratory and airship factory, and the other fifty are guarding the mines, there are only one hundred people in the city to maintain law and order, and among these hundred people, Su Fan also allocated forty to patrol around the four lords' homes to prevent some people with ulterior motives, as for ordinary people, they can only endure it first！

The number of 50,000 people is not small, among these 50,000 people there will inevitably be some gangsters, the previous riots have the shadow of gangs, but after many suppressions, although the gangs still exist, but they are not so arrogant, there are about dozens of gangs in the city, the largest number is about more than a hundred, the least is only four, these gangs usually collect protection money or something, but there is no big mess, as for the dispute over the gang territory, a little fire occasionally breaks out and something, when the marines arrive, only the corpses, even the wounded are taken away。

"Linna, we must form an army, a city of 50,000 people, at least a city defense army of 1,000 people!" Erin found Su Fan, some of the economic and operational aspects of the city are in charge of her alone, Su Fan and her shipwrecks will fight, Lilith, the black mage, doesn't know what he's playing, and Fett doesn't come out of the laboratory all day.

"Army, then you go get it, what do you want to tell me..."Su Fan was lazy, three minutes of heat had passed, and looking at the growth rate of the growth of this book collection, the enthusiasm in her heart to build a city had long been gone.

"Linna!" Erin quit, "the army is not so easy to build! First of all, it is a weapon, what is an army without a weapon? Secondly, there are officers, officers are the soul of a force, officers must be absolutely loyal to you, otherwise the army will easily defect!"

"Linlin~ You just say what you want!" Su Fan heard one head and two big.

"Weapons, officer!" said Erin simply.

"I have a lot of weapons, but where can I find officers?" Su Fan was embarrassed, not to mention the light weapons and other things, not to mention the ship itself, which can be manufactured in large quantities, even if you buy it from other places, the key is this officer, where does Su Fan know how to find a suitable candidate? There is indeed a set of training officers in her memory, but it is used by naval officers, and training a group of officers is not steamed buns!

Ordinary lords choose mercenaries, although the reputation of mercenaries is also very bad, but among these bad reputations, there is nothing about breach of contract, or bad reputation for the employer, because mercenaries attach great importance to the issue of integrity, even if there are one or two violations, for the survival of mercenaries, some are Lei Feng to seek justice.

Su Fan originally wanted to hire a mercenary, but because of the various sales of teammates and customers by those security companies on the earth, she had a little shadow in her heart, so she planned to use another method, that is, to directly go to the military academy to hire some newly graduated military cadets, the cadets already have the quality of an officer, as for experience or something, it will depend on the slow accumulation in the future.

"You're going to do that?" asked Lina, writing down the plan on a piece of paper.

"That's it!" Su Fan nodded.

After this matter was dealt with, Su Fan left Erin's office, she was still struggling with the test launch of the Thunder kinetic energy weapon system, where to fight?

Just when Su Fan was entangled, there was an explosion in a corner of the city, and she looked at the direction of the explosion angrily after being interrupted from thinking, she ordered some marines to go there to see what was going on, and then she received the information that the marines were fighting with the enemy, the enemy's strength was okay, there were about a dozen people, all of them were four or five levels, which was considered high-end in this small city, but there were many marines, and after a while, these people were all arrested.

"Who are you?" Su Fan began to make a cameo appearance as the cave master (scum cave), this group of people is seventeen in total, eleven were killed just now, and there are still six left, and now in front of Su Fan, this guy who was tied up into a dumpling should be the leader of these people.

"Who am I? You don't know who I am?" shouted arrogantly to the man dressed as a greasy-haired and powdery nobleman who was pressed to the ground, "I tell you, let me go quickly, and then apologize daoqian, and let that girl accompany me for one night, otherwise, be careful that your city is trapped to death!" (To be continued......)