Thirty-six improved stone cannon vehicles were divided into three layers and slowly advanced to the slope less than 300 steps outside the south gate. Each stone cannon vehicle was five steps away, allowing the manipulated soldiers to load and launch quickly with ease.

There are three large box trucks placed behind the stone cannon trucks, which are pulled by cattle and horses, one is waiting for the order, one is transported, and one is loaded. This forms an assembly line, which can maximize the rapid launch of the stone cannon trucks.

This kind of stone cannon car has been greatly improved from the cyclone cannon designed by Shangjiangfeng in Gushi City. One of the biggest improvements is that it does not completely use the soldiers' involvement in the throwing spring force, but instead uses magic compressor springs.

This elastic spring specially smelted and processed through the Ruijintang of the Daozangsou is quite complex, but the effect is excellent. It not only greatly reduces the number of soldiers manipulated, but also reduces the number of soldiers required for each stone cannon carriage to only three or five now, and its power is greatly enhanced.

In fact, the actual effect is that the weight and volume of the stones thrown in one load have increased a lot, and the range has also been greatly improved. Moreover, by adjusting the throwing angle and vehicle method, the shooting coverage area can be effectively adjusted, which is extremely flexible.

Because this elastic spring is very difficult to make, the scrap rate is particularly troublesome, Ruijintang has no better way to improve efficiency so far. In addition, the metal fatigue of this spring is also damaged very quickly. Basically, three to five springs are needed to consume a lot of money after a war, so these stone cannon cars were also pushed onto the battlefield before, but in order to play a role at critical moments, the Huai Youjun was also saving money, but today, all of them were on the stage.

In addition to traditional long-range weapons such as stone cannon vehicles, flame rattle vehicles have also become the first strategic weapon to appear.

This kind of box-mounted weapon is like a nest car, which uses a sling pulley and a flatbed cart, and three nest boxes are fixed with wooden brackets. The nest box is densely filled with white phosphorus flame arrows. When it reaches the range, the three nest boxes can be fully launched or can be launched in sequence.

There are as many as 100 flame arrows in each nest box that can be launched at one time. Without external factors such as wind and rain, a sea of ​​fire can be turned into a radius of three meters.

The defects of this thing are also very obvious. First, it is basically a one-time use. The flame arrows in the nest box need to be reloaded after being launched in one go. It is quite troublesome to load them. In addition, the white phosphorus flame arrows have poor stability and will spontaneously ignite and catch fire if they are not careful. Therefore, it takes a veteran for every nest box to be installed for half a day. In addition, the aiming and launch accuracy of the nest box are not easy to control, so the range is relatively limited, and the selection of angles and directions is not easy to grasp, and the requirements are very high.

In addition to these two types of weapons that are also considered magic attack weapons, but are still within the scope of common sense, Aokiyuan also took out an unconventional weapon this time.

The blue bamboo tube is like a cannon barrel, pointing diagonally in front of it. Two magicians are carefully checking the sealed tube mouth and listening carefully to the movement inside the bamboo tube, which makes people feel a little mysterious.

Jiang Feng stood on the earth slope with great interest, paying attention to the activities of the magicians.

Before siege, you must first exert the power of magic weapons, maximize their power, give the opponent a killing force, and then use the soldiers' strong attack. This has become an unchanging routine in Huaiyou's offensive tactics.

In Jiang Feng's words, the life of a soldier is the most precious, and the consumption of training a skilled soldier will be even greater. On the contrary, although the investment in research like magic is huge, once the results are achieved and promoted and exerted, the cost will be quickly reduced. At the same time, the large-scale use of magical instruments can effectively verify the advantages and disadvantages of these weapons, so that these weapons can be continuously improved in war.

Therefore, Jiang Feng arranged mobilization every time he made war, and required that the most powerful and latest achievements should be taken out and put into war, so that the war could be verified and proved the glorious prospects of the magic.

This was also approved by Deng Guinian, the first Daozang Institute.

Only by fully leveraging the strength of the Taoist sect and magic can we gain more support for the Taoist sect in the future.

Especially with the rapid expansion of Huaiyou's strength and the continuous expansion of territory, Deng Guinian's ambitions became increasingly greater. He believed that relying on the expansion of Huaiyou's power, the influence of the Daozang Institute could be expanded to the control area of ​​Huaiyou, and the recruitment of talents from the magic line within the scope of the sect, expand the influence, and attract more magic lovers and talented and interested people to join.

He even had a plan to set up a special Daocang school to find and select talented and ambitious talents from young children to start cultivating them from an early age, so that the Daocang family can establish a complete inheritance mechanism.

Of course, all this depends on the success of Huaiyou and the role played by the Daozang lineage in Huaiyou's march, so Deng Guinian spared no effort to enter Xuzhou this time.

Yang Kan, wearing heavy armor, arrived at the bottom of the earth slope, and Yang Kan followed him with Luo Ye, Li Tong and Hu Dan.

Today, the four armies they led will become the main force to break through the North Gate. Also at the North Gate, Zhang Ting, Chai Yong and others will also launch a full-scale attack on the North Gate of Qi County at the same time.

"Master!"

"Let's start!"

Jiang Feng didn't say anything extra, he just waved his hand.

With the waving of the red flag, the stone cannon car began to advance under the escort of the infantry, and the crossbow chariot was also mixed between the stone cannon car, looking for the most suitable area for them. The flame rafts were obviously a little behind. This was not the time when they were in their function. They would use the surprise to give the influence army a "surprise".

Yao Chengtai was also waiting for the battle on the city gate tower.

He had already noticed something wrong from the formation set up by the Huai Youjun under the city wall. Looking at the number of stone cannons propelled under the city wall, it was far more than the previous few days. The number of bed crossbow trucks was the same, at least three times the previous one. In addition, there was also something similar to the nest car, which had never been exposed before, and it was pushed out today.

Yao Chengtai originally hoped that he could hold on for another three days to inflict enough damage to the Huai Youjun before retreating, but now it seems that the other party does not intend to leave too much time for him.

Well, let them see if the Insurgent Army is a fame and their own abilities.

As the stone cannon car advanced, the tension in the city began to become stronger. The Left Army was the first to be hit, and the city rushing car had already begun to be ready for a standby. This stepped large wooden support car could easily reach straight under the city wall. The ladder about one meter wide can accommodate more than three people at the same time to launch a charge.

The narrow moat has been filled in the offensive and defensive battle a few days ago and will not be an obstacle. Once the car rushed to the city, it can immediately launch a charge.

The powerful crossbowman on the city wall took the lead in launching the attack, and the rocket poured down like raindrops, with the main target pointing directly to the wooden city-torn car.

However, this was also prepared for the Huai Youjun. The city-storming car that had been rewarded with water-based magic was not something that ordinary rockets could solve. However, if it was concentrated to attack, it would still cause some trouble. However, this was originally a relationship between a spear and a shield. As long as it could reach the city wall before it was ignited, the city-storming car would have fulfilled its mission.

Yang Kan's hawk-eyed eyes were as bright as a torch, staring at the city wall, waiting for the last opportunity to arrive.

He had confidence in his long-range strike weapons, and of course he also knew that it was unrealistic to want to fight one battle. Yao Chengtai's more than 10,000 elite soldiers were not vegetarians, and even if they were filled by human lives, they could withstand it for a while.

Chu Tan couldn't help licking his dry lips, and he showed this in a nervous state.

In fact, he is not a young man anymore. His stone cannon trucks performed well in the attack a few days ago, and they were all with reservations.

Today, his stone cannon chariot troops must exert all their strength, reaching the highest level, attacking wherever they point, suppressing the opponent's counterattack force to the greatest extent and providing support for the siege infantry.

The Qianli Mile Mile Mile in his hand has been sweeping the city wall. The two observers beside him have this kind of thing and should provide him with observation details at any time for him to make command decisions.

"First in front, east of the city gate, three scales, prepare!"

The chess player next to him immediately used a small flag to indicate the order, and at the same time, he also issued the order loudly with a special order, and repeated feedback.

"Let it go!" Almost erupted from his chest, and Chu Tan roared angrily.

Thirty-six stone cannon vehicles were fired in sequence according to the principle of three-layer strikes.

I saw a dark rain of stones suddenly flew up in the sky, each of which was three meters away, landing forward rapidly with the sound of howling wind.

The relatively uniform stones are all in the size of the bowl mouth. The size of this stone that has been crushed specially by cast iron is controlled within a certain range. This will help to allow the impact distance to be well controlled by the force of the spring during launch, which is also the benefit of standardization.

Yao Chengtai's heart sank. The scattered catapults and the stone cannon vehicles with large-scale overall attacks were incomparable. Although he had been prepared in his heart, no matter who saw the bombardment of such a distance and such powerful rocks, no matter who it was, he couldn't help feeling bitter in his mouth.

Accompanied by the huge rock-falling sound, the screams of soldiers and the cracks and collisions of the city walls, one after another, the entire area east of the city gate tower became a bloody Shura field. In order to maximize the attack power of the powerful crossbowmen, this dense formation is necessary, but the consequences are also devastating, especially in the face of such long-range strikes.
Chapter completed!