1162. Long-distance bombardment

Style: Historical Author: A book full of poems and thousands of flowersWords: 2057Update Time: 24/01/11 18:58:56
It's okay if Zhang Wudian didn't explain, but when he did, Zhang Fengyi was stunned.

Huo didn't understand mathematics either, so he was confused. However, this method of measuring distances with bare hands is very useful in the military.

For example, calculate how far the enemy enters the bow coverage area. Measure the distance of the enemy's charge. At each node, respond accordingly. These are very practical knowledge.

As a female general who is obsessed with military affairs, Zhang Fengyi naturally knows the value of this algorithm. I was so anxious for a moment that I took Yang Fan's arm and acted coquettishly. Yang Fan had to teach her.

Yang Fan had no choice but to agree to him and write a pamphlet for her, starting from scratch about trigonometric functions and this method of indirect aiming and distance measurement.

Yang Fan himself also studied the information on his own. He didn't understand this military knowledge either. However, now that he is a general leading troops, he naturally has to study hard.

"Mr. Zhang, when we Chinese people want to knock someone down, we usually ask whether he needs to be on his back or a dog eating shit. Otherwise, there is no technical content." Yang Fan said with a smile.

Zhang Wudian laughed loudly, it is true, Chinese people do things differently from Westerners. We are more meticulous, and the Chinese can play all kinds of tricks for the same thing. The Chinese can develop everything into an art.

"Look, there is no Sulu Ding battle flag on the hillside. Let's use that as the coordinate. The cannonballs will fall within a range of 300 meters around the battle flag. As for whether we can hit those Taijis, it depends on God's will." Yang Fan Speaking of.

Zhang Fengyi asked: "Brother Yang, can't you hit that battle flag?"

Yang Fan said: "If we use that battle flag as the center, it is absolutely impossible to hit that battle flag. It will only be scattered around."

At this time, Huang Hao came in to report: "Master, the three artillery pieces are ready. They can fire at any time. Please give the order."

Yang Fan looked through his binoculars and saw that more than 200 shield carts on the hillside were ready, and the slaves were pushing the carts under their whips. Most of these slaves have yellow hair and blue eyes. Judging from their appearance, they are people from various ethnic groups in the Western Region captured by Oirat.

The desolate horn blows. This was the clarion call for the Mongols to attack.

On the hillside in the distance, more than two hundred taels of armored vehicles were lined up in a row, slowly pushing towards the bottom of the mountain. There were more than 3,000 matchlock gunners hiding behind. After that, another three thousand Mongolian infantry came on foot. They followed with a shield in one hand and a scimitar in the other.

On the left and right flanks and behind were three cavalry phalanxes of 5,000 men. They are the supervising team to prevent the infantry in front from escaping. At the same time, it also serves as the final assault force. If these cavalry also failed, they would flee altogether.

"Aim at the battle flag, fire ten rounds rapidly, and use high-explosive bombs." Yang Fan ordered.

"Here!" Huang Hao performed a military salute, turned around and ordered to the captain: "Main gun position, high-explosive shells, ten rapid fire rounds, target battle flag on the hillside. Fire immediately!"

"Here! Main gun attention, high-explosive shells, ten rapid fire rounds, battle flag on the target hillside. Fire immediately!"

"The main gun is received, high-explosive shells, ten rounds fired rapidly, battle flag on the target hillside. Fire immediately!"

As the order was given, the gunners at the main battery position immediately began to aim. They shook various cranks, and through the gears, the huge artillery pitched and swung, and gradually put the target into the circle of the sight.

Immediately, the gunner waved his hand, and a gunner suddenly pulled the firing rope. The fire tube coming out of the fire door spurted out flames, igniting the propellant pack.

boom! There was a loud noise, and the 203mm main gun was astonishingly powerful.

Although Yang Fan and others were in the cab, they felt the ship shake violently and almost jumped up.

Looking from the porthole, on the gun emplacement in front, a dark, huge artillery spit out flames and thick smoke forward. The entire ship slid backwards under the huge recoil. It slid for more than ten meters before stopping.

Fortunately, everyone has experience and will quickly grab the various handles when firing.

This was the first full charge fire. Because the maximum range is used, five propellant packs are loaded at one time. Plus a warhead weighing 100 kilograms. This is the largest warhead that the 203 gun can use. The charge of this warhead is a full fifty kilograms.

Because the power of chemical fertilizer explosives is equivalent to 60% of TNT. The charge of this shell is equivalent to thirty kilograms of TNT. This has far exceeded the power of the later 155mm, which is the six-inch howitzer.

Taking the Meiliguo 155HE as an example, the M107 shell has a length of 800 mm, a warhead weighing 43.2 kg, of which the charge is about 15.8% of the total weight. It is equipped with 6.83 kg of TNT explosives and has a range of 17.5 kilometers.

The reason why the charge is so small is because modern artillery has high bore pressure, and the weight must be spent on the strength of the shell. One side of the shell is crushed by the bore pressure in the barrel. The charge is less.

Yang Fan's artillery has a very low muzzle velocity, a very short range, and a very small chamber pressure. Therefore, when Fu Laoliu was designing, he dared to use half the weight for the shell body and half the weight for the charge.

The charge of the 155mm howitzer is about 6 to 10 kilograms of TNT. Although it doesn't look like much, its power has a killing radius of 40 to 50 meters against unprotected living targets. It's no joke to say it kills people in an area as large as a football field. However, this distance is mainly caused by fragments.

When this kind of artillery shell hits the ground, it can create a large crater with a diameter of about 5 meters and a depth of 1.8 meters. Its shock wave power can destroy light armor within a range of 3 meters, and can destroy multi-layer brick walls within 10 meters. Against these Mongolian cavalry, most of which are equipped with leather armor, they are simply super killers.

The 203 cannon is not comparable to the 155 cannon. The two are not on the same channel.

The distance of 3,500 meters was reached in an instant in front of the artillery shells.

Almost at the same time, a huge smoke cloud rose from the distant hillside densely covered with Mongolian infantry and cavalry.

The deafening sound could be heard even three kilometers away.

The first shell obviously missed. They fell into a group of five thousand cavalry on the right wing.

The huge explosion blew a large section of the cavalry into pieces. There was no possibility of survival within the fifty-meter diameter of the center of the explosion. Both men and horses were blown into pieces and thrown into the sky.

The shock wave swept across a distance of more than a hundred meters. The cavalrymen who were not killed also fell off their horses one after another, and the war horses weighing three to four hundred kilograms also fell to the ground.

Gushi Khan and others watched in horror as the cavalry on the right wing was destroyed by a cannon fired from the black ship.

Originally, these cavalrymen were frightened. They had fired at the black ship on the river embankment before and were knocked to pieces by the terrifying machine cannon. Unexpectedly this time, I encountered a cannon. This huge explosion frightened the Mongolian horse.

The entire right wing was a scene of dolphins and wolves, and the whole thing was in chaos.