Sun Jiang saw the other warship firing guns, but he didn't panic in the slightest, there were more than forty gun emplacements on the entire battery, and there were fake batteries inside, that is, there was only an empty shell, but there was no artillery inside, they were not necessarily aiming at themselves, even if they were aiming at themselves, they might not be able to hit it, after all, there was a long distance.

Sun Jiang didn't guess wrong, the other party really didn't aim at him, the shell grazed his gun position and fell on the gun position next to him, the shell smashed heavily on the wall of the gun position, Sun Jiang keenly felt that the power of the other party's artillery was not great.

Before he had time to think about it, the two gunners next to him had already moved the handle and raised the ground cannon from the pit, the so-called ground sink cannon is to dig a deep pit behind the breastwork, and hide in the pit when the gun is not in use, and when the enemy ship is coming, manipulate the lifting mechanism to raise the gun from the pit to the position above the chest wall, and then strike at the enemy ship.

The observer on one side uses the theodolite to observe the position of the opposing warship, the theodolite is an instrument used to measure the angle, there is no laser rangefinder in this era, so the triangulation method is used to measure the distance, that is, the position of two points is known, these two points constitute a known line, and then they are connected with the unknown point, using the observation instrument, measuring the angle between the known lines of the two lines, and then using the trigonometric function to calculate the distance from their own point to the unknown point.

Trigonometric functions are known to everyone, not integers, to be applied in engineering, you need to take a certain approximation, in the approximation, the decimal point position is too much, the calculation is too complicated, after all, there was no computer in that era; It is not enough to obtain too little accuracy, and it is necessary to know that the distance between the two known points of the road can not be obtained too small, otherwise the deviation of the angle will be large, so the error will be greater if the distance is multiplied.

The error of trigonometric function is only one aspect, and the error of observation is even greater, first of all, the error of the theodolite itself, and secondly, the error of the observer, so that the distance is difficult to measure, and the distance is not accurate, how can it be accurate? Coupled with the influence of wind speed, air density, and humidity, it was not easy for artillery to hit accurately in that era.

Therefore, the artillery needs to shoot a round before the fire, and then the observer calibrates, adjusts the firing position, and then fires at the fire, but because the command mechanism of the Qing soldiers is backward, it has caused a situation in which each battery fights separately, and the warship on the opposite side, after the first shell has been fired, is immediately calibrated, and soon, more accurate artillery fire flew over, and the Qing army lost the opportunity invisibly.

"Azimuth 275, height 12", Sun Jiang heard the observer's command, quickly adjusted the position of the gun, this adjustment of the position of the muzzle is also a science, dozens of tons of large-caliber artillery, it is difficult to turn, but also to stop in the designated direction quickly and steadily, it is not an easy task, there is a way is a trick, eat all over the sky, Sun Jiang is specialized in this, he quickly turned the artillery to the designated position.

Another gunner opened the breech, two people held the shell, stuffed it into the barrel, and another person loaded the propellant bag, and then pulled the firing pin, the firing pin hit the ignition powder, the ignition powder burned and then ignited the propellant, and the high-temperature and high-pressure gas produced by the explosion was blocked by the barrel wall and the locking device, and could only rush to the direction of the muzzle, so that the shell was pushed, and the shell rotated at high speed in the gun chamber, and left the gun chamber and rushed to the target after the most lure.

The huge recoil force made the whole gun move backwards, and the gun body also shook, Sun Jiang and several gunners waited until the gun stopped, and quickly pushed it back to the gun position, Sun Jiang shouted at the observer: "Did you hit it?" ”

"Didn't hit!"

Sun Jiang asked again: "How much is it off?" ”

"There are so many bounces that I can't tell which one we hit."

Sun Jiang roared: "Then where do we go next?" ”

"I'll do the math later."

At this moment, Sun Jiang suddenly discovered that the opposing warship had retreated.

What they didn't know was that the British fleet had already figured out the location of the Qing army's real batteries in this wave of fire reconnaissance.

When Sun Jiang saw that the British warship had retreated, he sat on the ground with his butt and let it go, as if he had escaped death, took out a large smoking gun, took out a fire sickle flint, hit it, and sucked it one by one.

Before Sun Jiang could breathe, he heard someone shouting on the side: "The British ship is back again!" ”

Sun Jiang looked inside the fortress and saw the British fleet lined up in two columns from a distance, heading towards his battery, at this time, Sun Jiang only heard a loud noise, the whole person was shaken a few times, and there was a buzzing in his ears, it turned out to be a cannonball exploding on the edge of the fortress.

Sun Jiang couldn't help but roar: "How can this fucking foreign devil's cannon hit so accurately!" ”

The man on the side shouted: "It's not that the shot is accurate, it's that there is too much gunpowder in this cannonball, what kind of cannon is this, and the strength is too great." ”

They didn't know that this was the shell of the 343 mm main gun on the Sovereign-class battleship, and the power of this kind of artillery was one of the best in the world.

The caliber of Sun Jiang's gun at this position was only 250 mm, and the firing range was as close as that of others, and at this distance, the battery could only be beaten.

Soon Sun Jiang saw a shell drill into the breastwork of the nearby battery, it was an armor-piercing shell, the huge kinetic energy tore through the breastwork, the gunner inside was smashed to pieces, the huge impact detonated the ammunition in the storage room under the battery, the huge explosion was wrapped in dust, and the flesh and blood flew into the sky.

Sun Jiang watched the observer in the high place be shocked and bleeding, and fell to the ground with an ordinary sound, his wide-eyed eyes were just facing the soldier holding his head trembling in the corner, the soldier was instantly crushed, screaming and running out, Sun Jiang scolded in his heart: "This turtle son, there is still a way to survive hiding inside, and he will die faster outside." ”

Sun Jiang reached out and grabbed his clothes and shouted, "You come back for me." But who could hear him in the midst of the deafening explosions?

With a "stab", a large piece of the soldier's clothes was torn off by Sun Jiang, and Sun Jiang was also taken by him and fell to the ground, his right arm slammed on the gun rack, and his heart hurt!

As soon as Sun Jiang wanted to scold, he saw Shangguan kick the soldier to the ground, pulled out the steel knife, and said angrily: "Those who escape from the battle, behead!" ”

His voice was drowned out in a loud noise, a high-explosive grenade exploded outside the fortress, shrapnel hit the wall, although it did not penetrate the wall, but the debris on the wall was shaken down, flying inside the fortress like a knife, Shangguan's head was directly smashed into a sieve!

As Shangguan fell down with a bang, Sun Jiang couldn't help but smell a stench, the fleeing soldier had already pulled his and urine into his pants, Sun Jiang scolded in his heart: "Why is this foreign devil's cannon not finished!" He did not know that the firing of the British fleet was carefully designed to ensure that the firing of the guns would not be very large.

Sun Jiang saw that the British warship had sailed into the range of his cannons, and hurriedly got up, the observer was dead, the theodolite was broken, even if it was intact, no one would use it except the observer, Sun Jiang shouted: "Brothers, get up quickly, will you allow foreign devils to beat us?" ”

At this time, a burst of qi struck, the top of the entire fortress was suddenly lifted, and the sand and soil fell down in a sparse manner, making the people in the fortress disgraced, Sun Jiang stretched out his arm, raised his fingers, closed his eyes and opened them, and wanted to measure the distance with the jumping eye method, but before he could get it right, a burst of qi Lang pounced, Sun Jiang only felt that it was dark in front of him, and he didn't know anything.

I don't know how long it took for Sun Jiang to open his eyes, surrounded by mutilated limbs, cannon parts, and wood to build the fortress, he looked around, most of the fake fortresses were intact, he seemed to understand the purpose of the British warships that had retreated at the beginning, but he didn't care about these anymore.

The only thing he cared about was this: in this battle, he survived.

Just when he was rejoicing, the British fleet was passing through the Taiwan Strait and heading north, and their true purpose was not yet known.