Zhao Yu still remembers that in his previous life, he had seen this kind of 'short arrow' in the movie "The Final Weapon Bow" filmed by the stick, which is the so-called 'piece arrow' in modern times. This is how the Jin army under the strong hand shoots the short arrows they have cut off, but now they call the container where the arrows are carried the whip barrel, so they call this kind of arrow whip arrow, which is said to have been inspired by the crossbow.

It is also said to be a great invention, not only one arrow shaft becomes three, but the bamboo tube can also be recycled for multiple uses, and the cost is much cheaper. Moreover, it is easier to choose materials for short arrows than for long arrows. Long arrows should consider the insect eye scars of the wood, and if there are flaws, they must not be used. Short arrows can stagger these defects, and the waste materials used to make arrows may also be recycled into pieces of arrows. In this way, a large number of arrows can be easily obtained.

Explained by modern mechanics, Zhao Yu knows that when the arrow is shot, there will be different degrees of swing during the flight, the softer the arrow, the more obvious the swing, and this swing consumes the kinetic energy of the arrow itself. The short arrow is hard, and the swing will be smaller, which reduces the energy consumption generated by the swing, so the muzzle velocity is high, and the flight speed is relatively fast, which is conducive to shooting far.

However, short arrows also have disadvantages that are difficult to overcome. The bow is not only cumbersome to make, but also very delicate. As we all know, the bow relies on the deformation of the bow piece to store energy, and conducts the force to the arrow through the bowstring to shoot it, so there is no arrow on the bowstring, but it is empty, and the energy storage of the bow cannot release kinetic energy through the arrow off the string, but the bow itself has to bear the release of these forces, which will inevitably cause damage to the bow.

In the same way, short arrows are much shorter than long arrows and will weigh less, while shooting lighter arrows will cause more damage to the bow and reduce the life of the bow. In addition, the safety of the arrow is very problematic, and if you are not careful, the arrow will hit the hand holding the bow. All in all, comparing the advantages and disadvantages, the piece of arrow is really a kind of last resort in the face of a closed environment that cannot obtain resources. And the reason why the ancient Joseon developed a complete system of arrows, from the utensils to the shooting methods, is not because of poverty!

Muskets are much more economical than bows and arrows, and the materials required are basically wood, steel, and copper, which are easy to obtain, and can also be easily expanded by means of production scale, and the production cycle is short. The main material of the bullet fired is lead, which is also easy to process. And the specifications of the bullet are unified, the processing technology is simple, and it can be produced in a large-scale factory by casting, and the cost is also extremely low, and the price of a finished bullet is now controlled at about 20 Wen, which is several times cheaper than the arrow.

In contrast, the economy of muskets is obvious, and they are easy to produce, and can withstand the consumption of large-scale wars. The production cycle of bows and arrows is long, unless there is a large-scale reserve, otherwise a big war will lead to an imbalance between supply and demand, and the cost required is high, requiring a large amount of money to support production, which simply cannot withstand long-term consumption......

Wang Yinglin listened to the little emperor's words, and his heart was both respectful and ashamed. It is respectful that the little emperor acts farther than the eyes of those who claim to be well-learned, and that everything is carefully thought out before doing it. And think about yourself again, when the little emperor was in the late Qiongzhou period, he wanted to expand the ordnance prison, turn to the production of firearms, and then change the clothes of the whole army. At that time, although many courtiers saw the sharpness of firearms, they thought that the project was very expensive, and that ballistas and rocket artillery could meet the needs of the current war, and there was no need for the whole army to be equipped, and he was one of the opponents.

In the opposition of the ministers, although the little emperor gave up on expanding the armament prison, he instead allocated funds from the inner treasury to reorganize the craftsman supervisor who specially built the utensils needed for the imperial palace, and formed a new army brigade to train officers, and insisted on pursuing his own policy. Now it seems that the strategy of the little emperor was completely correct, not only enhancing the combat effectiveness of the army, but also saving military spending.

At present, Meng Yuan's light cavalry was constantly changing the direction of attack under his own attack, but the terrifying iron cavalry in the past became a lost guinea dog at this time, running under the fire of muskets and mortars, trying to dodge the barrage shot by his own muskets, but he could not break into the range of the bow and arrows at all, and could only blindly let go of his breath and quickly escaped.

"Your Majesty, the enemy cavalry has retreated!" The enemy cavalry that repeatedly changed direction and attacked, but hit the head and broke the bleeding blood suffered heavy losses, and it was difficult to even reassemble the whole team.

"It won't be long before they make a comeback, and this is the time for the decisive battle!" Zhao Yu looked at the sky, the sun had shifted to the south, and they were facing south, and the sunlight would shoot directly into the eyes of their own soldiers, making it difficult for them to aim and shoot. Meng Yuan's generals were all battle-hardened veterans and would not give up this God-given opportunity, so he judged that the enemy army was only temporarily stopping the attack, not a full retreat.

"Your Majesty, why did all the flags fall?" Wang Yinglin nodded after hearing this, but saw that the flag of the Chinese army was slowly lowering, and pointed in surprise. He still knows some common sense in the army, and on the battlefield, the commander-in-chief mainly uses the five-sided five-color flag for the command of various troops, and the so-called five-sided five-color flag is the five directions of the front, back, left, right, and middle, with the corresponding five colors of red, black, blue, white, and yellow. In the five-color flag, the front flag is red, the rear flag is black, the left flag is cyan, the right flag is white, and the Chinese flag is yellow.

During the battle, the commander-in-chief ordered all the five-color and five-square flags to be raised, and all units had to set up a formation in accordance with the pre-battle instructions and face the enemy on all sides. Then the main general will issue orders according to the development of the battle situation, for example, when other flags fall, only the red flag is raised, that is, the front battalion soldiers are prepared to listen to the command change, the black flag is to be prepared by the rear battalion soldiers, the green flag is to be prepared by the left battalion soldiers, the white flag is to be prepared by the right battalion soldiers, the yellow flag is to be prepared by the Chinese army headquarters, and the five flags are raised at the same time to prepare the whole army for changes. And the five flags are half-falling at the same time, which is to rest on the spot. In this way, the commanders of each department need to keep an eye on the Chinese army flag at all times, and then direct the soldiers of the headquarters to advance according to the direction of the Chinese army's five-color flag.

"Let's eat on the spot!" After the flag stopped in mid-air, two crisp gongs sounded on the battlefield, followed by a short trumpet sound from the various armies, after which the divisions disarmed the battle formation, and regrouped the whole team after moving their hands and feet; After the second sound, they took their seats on the spot, and the firefighters of each battalion immediately brought hot soup and dry food; After three sounds, the meal began, and the weapon was closed and kept at hand, and the artillery did not leave the gun position.

"Your Majesty, the whole army is resting on the spot, what will happen to the surprise attack of the enemy army?" Wang Yinglin took a bowl of broth and a baked Hu cake handed by Tan Fei, and asked a little uneasily.

"The enemy has just failed in the attempt and needs to regroup, and the officers and men of our army have been in formation for two hours from early to now, and they are physically and mentally exhausted, but they do not know when the battle will end, so they must rest and replenish their strength in order to fight again. As for the enemy army may also launch a surprise attack, but our army will also remain on guard, once the enemy army makes a move, it will be on alert, Governor Wang does not need to worry! Zhao Yu held the bowl in one hand, blew the thick layer of fat floating on the broth, took a sip and said with a smile.

"I see!" Wang Yinglin thought about it, how could the two armies face each other, how could they eat and rest defenselessly. I also saw that there were sentinels galloping out of each army, cruising between the formations of the two armies, and each unit also left troops on guard, still maintaining a battle formation. I also felt naïve to ask, and said with a smile.

"Governor Wang, there is no room for Sven on this battle array, you have to eat and drink a lot, and I don't know when you will be able to eat the next meal." Zhao Yu saw that he was taking a small sip of broth, and then put down the bowl and tore off a small bite of Hu Cake and put it in his mouth to chew, as if he was sitting at home, and couldn't help but remind with a smile.

"Hehe, Your Majesty's broth is too greasy, it's really hard for the minister to swallow!" Wang Yinglin turned his face to see that whether it was the little emperor or the guards around him, they were all gulping soup and eating cakes, and some people were already two bowls of broth and two or three Hu cakes in the blink of an eye. However, because of the cold weather, a layer of white grease had condensed on the edge of his bowl, and he smiled bitterly in embarrassment.

"Governor Wang is wrong, this oil is a good thing, not only can replenish physical strength, but also can resist cold, but it can't be wasted." Zhao Yu said and wiped the remaining corner of the Hu cake on the bottom of the bowl, rubbed the condensed white oil on it, put it in his mouth and chewed it indifferently, and at the same time handed the bowl to the guards beside him, signaling it to fill it again.

"This ......" Wang Yinglin couldn't help but feel sick to his stomach when he saw this, swallowed his saliva hard, and then pressed down the food that rushed to his throat. But after hesitating for a while, he still followed the example of the little emperor, endured nausea, closed his eyes and swallowed things. But his appearance made everyone laugh and made him blush.

After eating, the little emperor was still very considerate and asked people to make strong tea on this brazier to relieve Wang Yinglin's greasyness, and he drank two cups in a row regardless of his 'image' before he felt refreshed. But at this moment, he suddenly remembered the sharp sound of the horn in front of him, like the chirping of a swan, and he looked up at the pergola with his hand in his hand, and saw the ranger who had been sent out speeding towards him waving a yellow flag.

Wang Yinglin understood that the ranger saw the enemy's action, and the flying horse reported to the commander, and his own side immediately sounded the alarm to prepare for battle. At this time, when the soldiers of each army heard the horn blowing, they had already stood up and quickly lined up and arranged their weapons. And the five-color flags were also raised in unison, and the sound of trumpets, gongs, and whistles was interspersed, sounding one after another, and he saw that the various departments moved according to the order, but he could no longer understand the meaning......