Therefore, Huang Han built gun emplacements in advance before our 81 12-pounder, 6-pounder, and 3-pounder field guns were deployed in place to increase defensive strength.

It doesn't take too much trouble, just build a breastwork wall with a thickness of five feet and a height of five feet out of straw and dirt.

The propellant used in the cannons of this era was black powder, which was almost as powerful.

Kong Youde also knew the use of granulated gunpowder, and also knew that when the gun chamber was not smooth and there was a possibility of air leakage, a special plugging material was used to seal the outside of the shell to strengthen the air tightness.

Therefore, it was discovered that there were 10 heavy artillery pieces at the head of the southern city of Pyongyang, and Huang Han had already predicted that the two armies would inevitably fight each other.

Compared with the cast iron cannon in Kong Youde's hand, the cast steel cannon of the "Red Banner Army" has the advantage of greatly reducing the weight and having a good heat dissipation effect, and the number of times it can be continuously fired is more than double that of the cast iron cannon, but the firing range and accuracy do not necessarily have much advantage.

After all, Kong Youde's artillery was mounted on a high city-head battery, and the distance of firing shells at the maximum elevation angle would not be less than the twelve-pounder field gun owned by the "Red Banner Army".

There are pros and cons, Kong Youde's fort is strong, the artillery is high and far, and the key problem is the lethality.

The shells fired by the heavy artillery at the head of the city of the Qing army fell into the artillery array of the "Red Banner Army", unless they accurately hit the artillery and soldiers, and if they missed, they would invariably burrow into the breastwork prepared for the defense against shelling, and if they fell into the trenches, the power was even less worth mentioning.

But as long as the cannonballs of the "Red Banner Army" fall on the city, the flying bricks and jumping cannonballs will smash out a blur of flesh and blood, in case the heavy cannon at the head of the city causes the iron guy to shift or roll down, I don't know what the damage effect will look like.

A dramatic scene appeared, Sun Yuanhua, who was standing straight on the lookout post to observe the defense of Pyongyang's southern fortress, saw the banners of "Gongshun Wang" and "Kong", and carefully searched for the Qing generals on the tower of the south gate.

He actually saw a face that made him unforgettable, and how many times he dreamed back at midnight, Sun Yuanhua wanted to chop this face to pieces.

Sun Yuanhua muttered in his mouth: "Kong Youde, General Kong Shen, don't come unharmed!" You'd better be lucky not to get hit by a shot and go west. I'm still waiting to catch up with you. ”

Kong Youde was hugged by the family and the general, and at this time he was holding a clairvoyant mirror to observe the direction of Sun Yuanhua, he deliberately made a calm face, but in fact, his heart was already empty.

The unknown is the most frightening, he can't imagine the current combat effectiveness of the "Red Banner Army", nor can he estimate how many artillery pieces the "Red Banner Army" has.

The Qing army was already shocked after seeing the three strange things in the sky, and the rumors that the "Red Flag Army" could go to the sky spread far and wide, and the morale of the defenders plummeted.

Kong Youde has been observing with a clairvoyant, and can clearly see that there are really people in the sky, and they are all using clairvoyance to observe Pyongyang City, with the height they are at, Pyongyang City should be unobstructed.

Immediately afterwards, Kong Youde discovered the steel lookout post, and inadvertently saw an extremely familiar person.

The past is unbearable! Denglai has been absent for more than six years, and he didn't expect to see him on the battlefield today, Kong Youde was full of emotion.

Kong Youde, who found Sun Yuanhua, was also looking carefully, and he was not even interested in looking at the hot air balloon of the "Red Flag Army".

The two actually used the clairvoyant mirror to meet each other.

Sun Yuanhua is actually Kong Youde's benefactor, he transferred Kong Youde from the bitter Dongjiang Town to Denglai to entrust him with important tasks, but Kong Youde launched a mutiny in Wuqiao and destroyed half of Shandong, which led to Sun Yuanhua being killed by the imperial court in history.

Fortunately, Huang Han helped at a critical moment, so that Sun Yuanhua became a prisoner a few days before he was killed and came to Ningyuan City to recharge the army.

The past is vivid, new hatreds and old hatreds come to mind, and Sun Yuanhua's mind flashed Zhang Tao, Zhang Keda, Gonzaju de Xeira and other deceased people who died in Denglai.

Kong Youde saw the old superior again, and he didn't feel good about it, the knowledge he knew how to command artillery was completely learned after following Sun Yuanhua, how could he not know that Sun Yuanhua not only knew how to cast cannons, but also was an expert in artillery.

The next artillery battle is not easy to fight, that's for sure, but what can be done after the matter has come to this? Not to mention that falling into the hands of the "Red Flag Army" will not end well, and being caught by Sun Yuanhua is also a dead end.

He did not attempt to order ten heavy artillery pieces capable of firing seven or eight miles away at the maximum elevation angle to bombard the lookout post five miles away from Pyongyang's southern gate, although he clearly saw Sun Yuanhua.

Because Wuli has exceeded the effective range of heavy artillery, the shells fired can only be harvested from the sky, and it takes a little luck to hit that lookout post, and of course the effective number of shots cannot be wasted to do useless work.

The "Red Banner Army" was well-trained, the breastwork of the artillery position was completed, and after the foundation of the gun emplacements was tamped, 81 artillery pieces were arranged in place almost simultaneously.

When Kong Youde saw the artillery of the "Red Banner Army" pushing up, he immediately ordered the artillery to fire and strike first, and he wanted to take the lead before the artillery bombardment of the "Red Banner Army" and strive to destroy a few guns.

Kong Youde's ten heavy artillery guns fired three rounds, and 30 cast iron balls of about ten catties in the Ming Dynasty entered the artillery array of the "Red Banner Army".

Since the gunners at the head of Pyongyang did not encounter shelling at this time, no one panicked, and they played to their level, and the shells basically did not deviate from the landing point.

Although the "Red Banner Army" took precautions, it could not completely contain the damage caused by the artillery, and the artillery suffered more than 20 casualties, more than half of whom died on the spot, and a 12-pounder gun was destroyed.

No one flinched, and all the artillerymen knew that only timely return fire could reduce their own casualties, and just after three rounds of artillery shells of the Qing army, eighty vengeful shells flew out of the artillery array.

Immediately after that, after adjusting to the revised coordinates of the artillery observers, another eighty guns were discharged.

All the artillery entered a state of selflessness, no one cared whether they were hit by Qing artillery shells or not, and everyone completed a series of processes such as clearing, loading, and ignition with actions similar to those of machinery.

The city of Pyongyang is lively, and every iron ball that hits the city will jump and reap life, splashing bricks, rolling logs that are beaten, and even small cannons and tiger squatting cannons that have been directly hit are spinning.

In the midst of the wailing, Kong Youde and his henchmen shouted and scolded particularly harshly: "Bastard, don't leave the gun position, quickly reload and fire the cannon for Lao Tzu!" ”

Yang Hua requisitioned the back of his knife and beat the soldiers who tried to flee in vain, shouting: "Those who retreat will not be killed!" Brothers, don't think about running down the city, as long as the overseers find someone leaving the city wall, they will be beheaded on the spot, don't be stunned, fire the cannon, hurry up! ”

The siege team of the "Red Banner Army" was on standby, and in order to minimize the casualties of the robe as much as possible when the ants were attached to the siege, the order for the general attack was not issued.

The second round of artillery firing at Pyongyang's Seongtou artillery was very reluctant, with only three heavy artillery pieces firing and three shells falling into the artillery array of the "Red Banner Army", resulting in three dead and four wounded.