[Why did you drop the collection?] 】

Jiang Sheng organized the people of Linji to strengthen the city defense and reserve materials for the defense of the city in preparation for the battle in the coming day. Pen ~ fun ~ Pavilion www.biquge.info Chu Yan's troops are in the border area of Jizhou and Youzhou, these days are busy dealing with the raids of Zhang Chun's rebels and Wuhuan cavalry, it is difficult to take care of the war in Le'an, and the 20,000 cavalry drawn out are day and night, although they have already entered the territory of Le'an, but the people are sleepy and the horses are tired, and it is difficult to put into battle.

Zhao Yun was so anxious that he ordered the cavalry to lead the horses and march, which was much slower, but finally entered the county seat of Linji before the Linji attack was launched, and the troops defending the city were fully supplied.

Jiang Sheng sent a letter to Qingzhou Mu Jiao He, asking for support, but Jiao He was too busy to take care of himself at this time, and it was difficult to take care of the war in Le'an, because the Guan Hai Department claimed to be a 100,000-strong army, and was attacking the city and approaching Linzi, the seat of Qingzhou governance.

In June of the fifth year of Zhongping, Le'an County was controlled by the Yellow Turban Army, and Jiang Sheng retreated to Linji.

The Sugu Department suffered heavy losses and had to settle down in Bochang, the largest county seat in Le'an County, to rest and prepare for war. And Jiang Sheng had few soldiers and did not have the conditions to take the initiative, so Le'an entered a short truce.

The Yellow Turban Army used new weapons such as catapults and rushing vehicles for the first time during the attack on Bochang, which touched Jiang Sheng very much. The principle of these siege machines is very simple, but no one comes out.

Jiang Sheng came from the later generations, he was very familiar with these things, but he didn't think about it, and after seeing the application of the Yellow Turban Army, he fell in love, and he had nothing to do in the city these days, and he was thinking about these things.

There were three carpenter shops in Linji City, all of which were requisitioned by Jiang Sheng this time, and Jiang Sheng drew drawings for them to make these locks, gears, tenons, etc. as soon as possible, and asked the archers to remove most of the bowstrings for later use.

Faced with the shortage of raw materials, the only thing Jiang Sheng could do was a bed crossbow. Jiang Sheng relied on the memory of the bed crossbow recorded by later generations, and tried to produce the world's first bed crossbow.

This bed crossbow is a three-bow bed crossbow, which combines the tension of the three bows and pulls the bowstring with winches on both sides, and between the two winches is installed a tenon mechanism, which is directly connected to the wooden trough used to place the crossbow arrows.

Jiang Sheng ordered six soldiers to carry the bed crossbow to the outside of the city, set up a wooden human-shaped target at a distance of 200 meters, and then took an arrow and placed it in the wooden trough.

The two soldiers rotated the winch to the tightest on the left and right sides, and then fixed the winch with the tenon, Jiang Sheng picked up the short rope connecting the tenon, and gently tugged on it, and the winch that was released from control turned rapidly, and the bowstring rebounded, shooting the arrow out of the wooden trough.

The wooden humanoid target two hundred meters away was directly pierced by the arrow, and the soldiers' eyes widened in disbelief at what had happened.

A person with a large strength can pull out a three-stone bow at most, and Jiang Sheng combined the elastic power of the three bows together, which is greater than the strength of three people with super strength together, and the speed of the crossbow arrow is naturally amazing, if the quality of the arrow is excellent, two hundred meters is enough to hit the effect of a pistol bullet.

When Jiang Sheng tested for the second time, he directly put three arrows in the wooden trough, and when he fired, the three arrows came out at once, hitting the upper, middle and lower three ways, and the solid wood humanoid target two hundred meters away was directly shattered by the crossbow arrows! It seems that this workmanship has reached the level it should be.

When improving the test, Jiang Sheng used five bows to make a five-bow bed crossbow, the power was greater, this time the target was four hundred meters, during the battle of Bochang, Jiang Sheng used the thumb method to calculate the distance between the catapult and the head of the city, that is, three hundred and twenty meters to three hundred and fifty meters.

It's a pity that the test failed, the tenon and the bowstring couldn't withstand the tension of the five bows, and they broke directly, Jiang Sheng had to change to a four-bow bed crossbow, and at a distance of four hundred meters, although the crossbow arrow hit, it did not pierce, leaving only a depression, which had almost no lethality.

Jiang Sheng placed the target at a distance of 350 meters, and the crossbow arrows shot through the humanoid target, the fly in the ointment was that some of the crossbow arrows were not of high quality, and the arrows shattered after hitting the target.

The morale of the soldiers was not high, but when they heard that Jiang Sheng had invented a powerful bed crossbow, their morale was boosted.

In order to boost morale, Jiang Sheng demonstrated the use of the four-bow bed crossbow in the city, and the representatives of the soldiers and the people were invited to watch the ceremony.

After the power of the four-bow bed crossbow stabilized, Jiang Sheng set up a lifting groove at the front end to ensure that the bed crossbow could shoot from the back, flat and down, and the new bed crossbow was operated by three soldiers, two of whom were responsible for turning the winch and one person was responsible for loading and firing arrows.

Two bed crossbows were set up three hundred meters from the city wall, aimed at the city wall, and the soldier in charge of loading the arrows loaded the three crossbow arrows into the wooden trough, and then the soldier in charge of turning the winch turned the winch.

Jiang Sheng improved the winch according to the principle of lever, and it turned more labor-saving.

After the winch was turned into place, the soldier in charge of the operation pulled the string, and six crossbow arrows shot into the city wall with the sound of breaking through the air, until there was no feather.

The crowd cheered loudly.

Jiang Sheng asked the soldiers to adjust the direction to shoot from the back, and tried again, and the wooden target standing on the head of the city was shattered by crossbow arrows, and sawdust flew everywhere.

The experiment with the bed crossbow was a great success, and the confidence of the military and civilians in the city was greatly increased.

Jiang Sheng took the opportunity to mobilize the people to participate in the labor of raw material collection and bed crossbow processing, and within ten days, 50 bed crossbows were made, and 20,000 large crossbow arrows were successfully put into storage.

In order to ensure that they were used when defending the city, Jiang Sheng set these bed crossbows at the head of the city, and then used thick wooden planks to make protective plates on top of and in front of the bed crossbows, and the soldiers only needed to complete the operation of loading arrows and shooting under the protective plates.

Zhao Yun, Yu Ban, and Zhang He each led 7,000 cavalry to hide in the woodlands and mountain passes outside Linji City to prepare for battle; The 10,000 volunteers composed of 5,000 soldiers and young and strong people in the city went to the top of the city to defend the city.

After resting for many days, they launched an attack, this time with more catapults, more than forty of them, and they ordered the catapults to be the first wave of the attack, and then the archers covered the infantry to attack the city.

Seeing that there were a lot of wooden protective boards at the head of the city, he laughed and said, "I thought you Jiang Sheng was so capable, can the wooden planks resist my stone bullets?" Hahaha – Attack! ”

The catapult whirred, and the huge stone projectile flew towards the head of Linji County. Due to the rough workmanship, it was difficult to ensure accuracy, and the wooden protective plates were intact, but the castle tower was concentrated by stone bullets and collapsed.

Jiang Sheng looked at the direction in which the stone projectiles were flying, and then adjusted the direction of the bed crossbow one by one, changing it to a direction slightly lower than the flat fire, and the wooden trough of each bed crossbow was filled with five crossbow arrows, and the soldiers turned the winch nervously.

The soldiers in charge of the launch all looked at the small flag in Jiang Sheng's hand, and after the second round of projection of the catapult of the Zhenggu Army was completed, Jiang Sheng's small flag waved, and the soldiers in charge of the launch pulled the string connecting the tenon.

More than 200 large crossbow arrows flew towards the rear of the Sugu army, and the Yellow Turban Army saw the crossbow arrows flying in, but they didn't have time to dodge, and after those crossbow arrows shot through seven or eight people, the remaining momentum was still gone, and they were nailed to the ground.