"Boom!"

Fifteen Thor cannons, five hundred paces away from the city, let out a thunderous roar. Pen & Fun & Pavilion www.biquge.info

Although when Huang Jie came this time, the artillery pieces he brought were only five guns of each of the three types of guns, but there was no technical problem in firing stun bombs.

In the process of developing the Thor artillery, Ling Zhen and Xue Xian found in many experiments that when the shells equipped with warheads and the shells without the warheads are cast, there is a big difference between the sound and the movement, and the shells equipped with the warhead are fired after the sound is dull and cannot reach far, but the sound of the empty shells is very large, and the tremor can be felt at a distance of seven or eight hundred and nearly a thousand steps.

This peculiar phenomenon naturally made the ancients who didn't know what acoustic principles and sound wave propagation characteristics felt puzzled, but Huang Jie knew!

As a result, a research and development team was set up with special funds to test various gunpowder formulas, and developed the best sound and effect of the shock bomb, which was naturally used to frighten people.

However, it is also said that the distance of 500 steps is exactly the best firing distance of the Song army's artillery, and it is also the distance beyond the reach of various long-range city defense equipment of the Goryeo garrison troops.

However, due to the indescribable level of the military industry of the Koreans, the power of these weapons was naturally greatly reduced, judging by the various beacons that the Koreans themselves had made in front of the city, the firing range of their heavy long-range weapons was no more than 400 paces at most, and the firing range of individual long-range weapons was only a pitiful 150 paces.

The standard firing range of the Song army's eight-cow bed crossbow is at least 1,000 steps, and the firing range of the individual soldier's divine arm bow is more than 300 steps, as for the artillery, the range of light artillery has reached 1,500 steps, and the long-range artillery has reached a terrifying 2,000 to 2,500 steps.

So, in such a situation, do you say that Huang Jie has no need to get any stairs, what kind of "ant attachment" to fill the city of the Goryeo people, of course, he just bombarded his mother with artillery!

That is to say, when the order to siege the city was issued, the artillery company (fifteen guns that is, the company's establishment) immediately began the first round of stun bomb fire in accordance with the battle plan.

At the main gate of Pyongyang City, both the defenders and the people assisting in the defense, after hearing one thunderbolt after another, they also felt that an invisible force suddenly collided head-on, and many people were directly knocked down by this indescribable force, and then this force also penetrated into the city wall and the tower.

As for the city walls, they were trembling slightly by this force, and people felt that the earth was trembling under this great force.

Suddenly, I don't know who took the lead in screaming, followed by all kinds of terrified howls one after another, even the authentic defenders in armor couldn't help the earth-destroying thunder tremors, so what did they care about holding the city, they all hurriedly hugged their heads and ran away.

Seeing that only one round of stun bombs destroyed the will of the Koreans to resist, Huang Jie put down the binoculars and hurriedly asked Huang Dalong to give the order quickly, and directly asked the artillery company to replace the second round of stun bombs directly on the live ammunition, this Koreans collapsed, why waste ammunition, the cost of the stun bomb is not cheap, and it costs more than a dozen times for a shot.

Of course, the artillery company that had obtained the military order did not dare to disobey it, so it hurriedly removed the stun bombs that had been prepared before, and replaced them with live ammunition, and only thirty breaths later (about three minutes), the five light artillery guns were the first to load their ammunition, and then they also bombarded directly at the main gate.

Since the distance was only more than 500 paces, the artillery didn't even need to calculate the shooting points here, and even the trajectory didn't need to be carefully calculated, so the artillery was adjusted to a flat fire elevation angle of more than 20 degrees, and it was directly bombarded. With the sound of five dull cannons, I also saw that the urn city at the east gate of Pyongyang City immediately burst into three flowers of death splashed with earth and stones, and the whereabouts of the two shells are somewhat interesting, one was in the middle of the city gate of the urn city, and disappeared after smashing a small circular hole in the wooden door, as for the other one was hit high, directly hitting a window on the second floor of the city tower, and it was also smashed out of a small circular hole and disappeared.

At this moment, I heard five muffled tom tom sounds, but it was the long-range artillery that spoke later.

Compared with light artillery, the trajectory of long-range artillery is naturally more accurate, and it was seen that four consecutive earth and stone flowers burst around the gate of the urn city at the same time, and one shot directly hit a female wall at the top of the wall, instantly shattering the wall more than a zhang long.

After the light artillery and the long-range artillery had spoken one after another, five more dull cannon sounds were heard, and then I saw that five flowers of death were blooming on the foundation of the urn city wall of the main gate, but then I also saw that the wall on the left side of the urn city suddenly collapsed in half, and a large section of the wall about twenty or thirty zhang long collapsed without warning.

The city construction technology of the Goryeo people naturally has no advantage over the Great Song people. At present, it is the city wall of Goryeo Xijing, and the construction technology used is mainly rammed earth, and then a layer of bricks is wrapped on the outer wall as a façade, and it seems that this layer of brick wall is too old to withstand the bombardment of heavy artillery, just a round of five shells, and the entire wall was shattered.

If the first round of detonation bombs just now sounded like thunder and felt like thunder, then this second round was really hit by thunder. The soldiers and civilians who were stationed on the city walls on both sides of the urn city felt a little confused when they saw the people on the city tower fleeing frantically after hearing the sound of thunder, thinking that this was just thunder, and there was nothing to be afraid of. And when they saw that the second round of thunder really hit the city wall, causing the wall to crack and collapse, and they felt that the city wall under their feet trembled incomparably, and naturally they understood that this thunder not only sounded like and felt like, but they were afraid that it would not be better if it really hit their bodies, so they understood why the people on the city gate tower didn't want to run for their lives.

Suddenly, I saw both sides of the city wall of the urn city, and many defenders and people who had woken up finally wavered, and they also turned around and ran away with their heads in their hands, and the situation of rout and escape was suddenly triggered, and it was out of control.