Haha, it's finally out, the third-order science and technology department! Yi Yun is overjoyed, his estimation is not wrong, the career of the science and technology department is really to be developed by the corresponding science and technology, and it can be obtained automatically. In fact, this point, he, a person from later generations, should have thought of it a long time ago, because the combat effectiveness of soldiers in later generations often changes with the weapons used. Unlike the soldiers in the Cold Weapon Age, it is determined by their own martial arts proficiency.

For example, in the era of cold weapons, a big man with good martial arts, holding a spear and a halberd in his hand, in fact, the difference in combat effectiveness is not too big, even if he holds a bamboo stick, the little man with a knife who is not good at martial arts is still not the opponent of the big man. In other words, martial arts are superior to weapons, so the power of the profession exceeds the power of weapons.

But the era of hot weapons is different, and children with heavy machine guns can easily swoop out dozens of big men and manage how high their martial arts are...... In some televisions, a big man is shown running in a hail of bullets, rushing to the side of the enemy with a machine gun, and taking down the opponent with a set of punches. If it's really going to be filmed, the audience will scold: rub, what a bad TV, the protagonist was suddenly killed.

Okay, it's too far away, so let's get back to the story quickly.

Without hesitation, Iyun became a "rifleman".

"Ding...... You gain two active-cast abilities......"

"Long-range shooting: The rifle has a range of up to 500 meters, within this distance. Riflemen can strike with relative precision. ”

"Fighting bayonets: When using a rifle equipped with a bayonet, the rifle can use the bayonet on the gun to engage the enemy in hand-to-hand combat. ”

"Ding...... You gain two permanent passive skills......"

"Gun Inheritance: The Rifle Soldier can use all the skills of the Gun Soldier and is more powerful. ”

"Rifle dependence: Only those who have obtained a rifle can be transferred to a rifleman. A rifle soldier if he loses his rifle. will automatically return to his previous profession. ”

As soon as Yi Yun heard the introduction of this profession, he immediately sweated, this request for a rifle is so annoying, that is to say, if I only produce one rifle, I can only transfer a job to one girl, if there is not a sufficient number of rifles, the girls will still pester me to ask for unspoken rules...... Good sweat!

This little depression was quickly dispelled by him. It's better to get down to business first, Yi Yun picked up his imitation of the inferior rifle, loaded the bullets, and stuck out of the window. Aimed at a sand seagull flying on the surface of the sea a few hundred meters away.

This sand seagull is about 300 meters away from the giant dragon boat, and at such a range, if the second-order "gunner" uses "sniping", it is estimated that it can only hit the moon, and it is absolutely impossible to touch half a hair. But if you use the third-order "long-range shooting", you may be able to do it.

Yi Yun used the skill of "long-range shooting" and fired a shot with a "snap", and the bullet of the rifle carried a blue light granted by the skill. Quickly shot at the seagull, such an accurate bullet. Under the action of rifling, it spun and flew out. Straight in the air, heading straight towards the target, almost without the slightest deviation from the trajectory, only to hear a scream from the sand seagull, shot in the chest, and planted in the sea.

"Wow!" the blacksmiths around him were startled.

"Wha, buddy is also a sharpshooter!" Yi Yun was overjoyed, but unfortunately before he could laugh twice, the inferior rifle in his hand snapped and cracked, and the barrel of the gun was already twisted, and several machines were shocked off, and they were completely unusable.

Yi Yun shook his head, threw aside the rotten fire gun in his hand, and re-used the "Intermediate Manufacturing Technique" to create a new rifle, then threw the gun into the hands of the blacksmith who was stunned next to him, and snorted, "I will give you this new weapon, and after you disassemble it, you will build it according to its appearance." ”

...,

The blacksmiths were a little sweaty, and several people asked together, "Lord Wang, is this...... What kind of strange weapon is this? It can hit seagulls so far away. ”

"Can such a treasure really be handed over to us to disassemble and study?"

Yi Yun smiled and said, "Of course, leave it to you, let's quickly dismantle the research...... Each of you is responsible for a part, and then put it together at the end, so that it is relatively fast, and try to build a handful tomorrow to try. ”

"Pour, lord...... How can it be ...... tomorrow" The blacksmiths sweated together: "You also know that no one in our Dameng country knows how to make serious firearms, the previous firecrackers were imported from Fusang and the West, we are still learning, even if it is the old-fashioned firecrackers in the past, a few of us only have the ability to maintain, not the ability to manufacture, now you give us a more powerful firecracker, how can we make it?"

"How long will it take for them to figure it out?" said Iyun Khan.

"At least...... A few months!" the blacksmiths sweated.

"Isn't it???" Yi Yun screamed: "Those female soldiers chased me to the sky and the ground, and they still have to drag me for months? ”

Speaking of this, Yi Yun suddenly came to his senses, no, what I studied was a rifle, but those female soldiers are artillerymen, pit dad, I don't want to turn these experienced artillerymen into other professions, it seems that I still have to study rifled guns. By the way, although the technology of making guns in the country of Dameng is a blank, but the level of cannon making is not low, the most powerful red-coated cannon in the world in this era, isn't it made by our country itself? Westerners can only make jack cannons, and we have 10,000 catties of cannons in Dameng country.

With the experience of rifled guns, rifled guns are not difficult, Yi Yun casually analyzed the rifled guns of the 17th century, and soon, he fused a large pile of iron together to create a huge cannon.

The cannon is a kind of cannon with a low angle of fire, its trajectory is low, the body barrel is very long, the muzzle velocity is very large, the angle of fire is generally less than 45 degrees, and it is mostly used for shooting at armored targets, and it is very suitable for naval guns on battleships. Several blacksmiths helped Iyun stick the freshly made cannon out of the window, and after stuffing the ammunition, Iyun lit the arquebus and stepped aside.

Only a loud "boom" was heard, and the cannon spewed out a large rotating iron ball, which had a very stable flight trajectory and was not shaking like an ordinary smoothbore gun. You must know that the artillerymen in the past, even if they used professional skills, the hit rate was still not very high, mainly because the shells fired by the smoothbore guns were too unstable and often flew around. You may fly to some strange place, so the artillerymen's shooting accuracy is not enough, and there will generally be a deviation of about five meters.

But Yi Yun only tried one shot and found that the trajectory of the cannon is extremely accurate, and the error is extremely small, if you use professional skills to control the launch of the cannonball, you can at least narrow the difference to within two meters. And this shell also flew very far, and the range was almost doubled.

After this cannon was fired, Yi Yun's mind really sounded "ding" again, and a new career prompt came to mind at the same time: "Discover a new profession...... Cannon artillery ...... Do you want to change jobs?"

"Nonsense, of course turn!"

Then a hint sounded, about the same as the skill of an artilleryman, except that the power and range increased with the advent of the cannon.

Yi Yun didn't listen carefully to the introduction, he pushed the cannon in front of the blacksmiths, and snorted: "I asked you to build a compound gun, and you have a lot to say, it's no problem to make a cannon, right? ”

"No problem! Of course no problem!" the blacksmiths were energetic: "The little people are all first-class at making cannons!"

"Very well, then build me a cannon tomorrow!" Iyun snorted.

...,

"Tomorrow, my lord...... Is it a toy to make a cannon? It's a lot of work, so let's give us at least 10 days. ”

"Ten days?" Iyun Khan: "Don't do it, the female artillerymen are about to swallow me alive, I will definitely not be able to survive ten days." ”

"Why don't you hide here for a few days?" The blacksmiths came up with bad ideas: "It's molten iron here, it's a furnace, and there are some messy firecrackers and black oil, women hate this kind of place the most, and they will definitely not come." ”

Yi Yun smiled bitterly: "It's okay, that's the only way!"

For the next few days, Yi Yun lived in the blacksmith house hard, did not dare to inform most people, only quietly sent someone to inform Chen Yuanyuan and Zhu Qingqing Qingqing, asking the two of them not to come to him, he lived with a large group of blacksmiths with dark skin and stinky sweat all over his body, there was nothing to do, just to study and think about new weapons and technologies every day.

With the analysis of rifle and cannon technology, Yi Yun can be regarded as opening his mind, and he began to seriously think about which weapons can be analyzed and imitated at the current level of science and technology in this era.

Soon, he found that there are two kinds of weapons that can be used, one is the mortar, although the mortar really appeared on the stage of history in 1904, but in fact, its scientific and technological content is very low, and it can be achieved with a very simple process, for example, in 1342 AD, the Arabs used mortars, they set up short horn cylinders on the battlements, the mouth of the cylinder is facing the outside of the city, and gunpowder is put inside, and then an iron ball is put in...... Then shoot the iron ball out to blast the Spanish soldiers outside the city. This most primitive mortar can be used normally, and with the level of craftsmen in the Great Meng Country, it is really easy to make a mortar cannon that surpasses this grade.

So the third-order "mortar" was soon born.

Next, Yi Yun also "invented" the hand grenade, the production process of this thing is also very low, the craftsmen spent a little effort, and used the process of making firecrackers to make a simple grenade, with the invention of this thing, a new third-order class "grenadier" entered Yi Yun's big transfer system.

A big leap forward for the Department of Science and Technology!

Ten days later, the first cannon was finally completed, and Iyun finally dared to get out of the blacksmith cabin.