Chapter 749: :Eye-opener

It's just, looking at this 'thin' barrel, and this gun body, which is longer than ordinary guns.
Zhang Mao's eyes are still full of doubts.
Can this thing be fried?
Not afraid of frying?
He smiled and looked at Fang Jifan.
Fang Jifan said: "Shi Bo, I don't know how far the artillery in the border town can shoot. How accurate is it?"
"This ..." Zhang Mao only hesitated a little, and said: "There are probably two or three hundred feet. The precision ... what is it?"
Two or three hundred feet, this is too general.
In fact, smooth-bore artillery, especially in the smooth-bore artillery, also has a special air cannon, it is impossible to count on, with an accurate range, completely ... Luck.
Fang Ji nodded his head, this point, and his understanding of the historical data, probably in line with. The artillery of the Ming Dynasty was dominated by tiger squatting guns for a considerable period of time. The range was not long. The accuracy ... it really depends on luck.
Later, when Westerners began to appear and there was communication between the East and the West, the Hongyi artillery was introduced by the Ming Army. The length of the artillery tube was long, and the thickness of the tube wall gradually thickened from the muzzle to the tail, which was in line with gunpowder. The principle of high pressure to the bottom during combustion; there are cylindrical lugs on both sides of the center of gravity of the gun body. The gun can adjust the firing angle based on this axis, and change the range according to the amount of gunpowder; and it also has a sight and a sight door. According to the parabola to calculate the trajectory, the accuracy is very high. And its best is the range. As a cannon, the range of the Hongyi Cannon reached 300 to 500 feet.
The drawings provided by Fang Jifan are actually the style of the Hongyi Cannon.
Its characteristic is that the barrel is long, but the thickness of the tiger squat is not heavy, but it is more than the ordinary red-clad cannon, but it chose to engrave the Yin line in the barrel of the gun. This Yin line is the rifle. Therefore, even if it is compared with the history The range and accuracy of the Hongyi cannon is much stronger.
Fang Jifan smiled and said: "Shi Bo, look at the mountain on the opposite side."
He said, handing a telescope into Zhang Mao's hand, Zhang Mao looked at the mountain from a distance, raised his telescope to look at it, the mountain on the opposite side was actually a large tree, there was an area where the red rope was tied to the tree, Zhang Mao frowned: "What are you doing?"
"We are going to hit those forests tied with red ropes."
Zhang Mao is a little speechless, across the hill, there are seven or eight hundred feet, the distance of seven or eight hundred feet, but also hit the target? are you crazy?
Zhang Mao did not believe it.
But in front of the prince, he did n’t believe it, and he had to hold back. As a British father who played happily in the gun barrel, Zhang Mao knew the gun very well and had to laugh:
Here, I ’m afraid there are eight More than one hundred steps ... this ... cough cough, His Royal Highness, he is really aspiring. "
Only talks about Zhuangzhi Lingyun, in fact, it means that the heart is higher than the sky, but well ... other things are naturally not easy to say.
"Lao, let's open our eyes to the UK."
"Well." Fang Jifan nodded and said: "His Royal Highness, you come to reload."
The shells are too heavy, and Fang Jifan's brain hurts a little. In this case, only Zhu Hou Zhao, who is in good health, can come.
Zhu Houzhao didn't say anything. He lifted up his long sleeves, twitched, and wailed, and opened the wooden box beside him. A row of shells appeared in the box.
This shell is different from ordinary shells. Fang Jifan called it a flower shell. During the Hongzhi Dynasty, the shells were solid, but it was not until the Jiajing years, that is, decades later, that Daming began to invent the "Poison Fire Flying" Poisonous Fire Flying 'is the prototype of a flowering bomb, which contains "arsenic poison five two", and after firing, it will "fly" two hundred steps away, breaking and hurting people.
Of course, Fang Jifan is a kind person. Although these flowering bombs are the first to appear, they are not filled with arsenic, sulfur, poison and other unscrupulous things in the shells filled with gunpowder. He is only inside. Life was filled with steel balls, and in one shell, there were hundreds of small steel balls.
So, don't look at this flower bomb is hollow, but in fact, it's too heavy.
Fang Jifan was on the other side, and began to charge gunpowder. He put a packet of gunpowder into the muzzle and filled it with a long-handed wooden plug.
Afterwards, Zhu Hou Zhao shouted, carrying the shells, his teeth cracked: "Quickly leave." Then, he loaded the shells into the muzzle.
The barrel is very smooth, and because of the rifling, the accuracy of the shell must be made with the inner wall of the barrel. This shell reserves a long lead, and then slides into the barrel. bottom of.
Everything is done.
Zhu Houzhao started to pick up the book.
The style of the Hongyi cannon, originally a cannon, is now alive and was tossed into a howitzer by Fang Jifan.
But it doesn't matter, it's just useful. He doesn't like solid shells, he likes flowers, and it's just a piece of wow.
Fang Jifan held the barrel of the gun, couldn't help feeling: "I'm so tired."
Zhu Hou glared at Fang Jifan with an angry look, and you were also tired of filling gunpowder. What is this palace?
He was too lazy to treat Fang Jifan, but took out a book from his sleeve.
After the accuracy increased, Zhu Houzhao discovered that this new type of artillery was regular during the test firing process.
The projectile has its trajectory, which is the principle of parabola, so as long as the ear is used as the central axis, the shooting angle is adjusted, and the target and the sight are used to determine the target. After the projectile is ejected, the orbit calculation and final calculation Out of where the shells landed.
And this ... but it involves arithmetic.
Of course, Fang Jifan also instructed Zhu Houzhao, and Zhu Houzhao seems to have begun to feel the trick.
Fang Jifan prepared to command the gunner to calibrate the elevation angle and sight of the same artillery, Zhu Hou waved his hand: "Come here, take the abacus!"
"......"
Zhang Mao looked at it, although there were quite some rules, but ... what the is the abacus, you still need to use the abacus when you put up a gun battle?
Someone had already prepared an abacus. Zhu Houzhao held a charcoal pen and lay on the ground with his very seriously, spread out the book, and compared the formulas shot in the past. Pen, reach out, pinch to count, and muttered to himself: "Three to three is nine, nine nine eighty one, eighty one ..."
This ... this ... Zhang Mao covered his heart.
I should n’t have come, these two jerks, are they jumping?
Finally, Zhu Houzhao figured out what he had done.
'S eyes lit up: "The result came out, come and come, the elevation angle is seventy-two degrees, and this palace personally came to school to shoot."
Fang Jifan had to admire Zhu Houzhao, this guy, pay attention!
After the school shooting, Zhu Houzhao was not at ease and looked at Fang Jifan: "Lao Fang, your gunpowder is not wrong. More and less equipment will affect the calculation result of this palace."
Fang Jifan's rattle seemed to shake his head: "His Royal Highness must use people without doubt."
Zhu Houzhao was excited: "Okay, come here, set fire to this palace.
Someone took the torch and lit the lead of the shell first.
Cannonballs also have leads?
Zhang Mao is full of doubts.
Sparks sputtered on the lead.
At the same time, the lead wire inserted into the rear wall of the artillery started to be ignited. Zhu Houzhao and others fixed the artillery early, and then a long-lost roar rose.
At the bottom of the barrel, two pounds of gunpowder exploded instantaneously, generating a huge air wave. The air wave expanded wildly, pushing the shells, and the shells quickly rotated along the rifling line, waiting for the shells to follow the firelight. The moment the shell left the barrel, the shell followed the rifle and began to spin. With this inertia, the crazy rotating shell directly pointed towards the target.
The difference between the smoothbore gun and the rifled gun is this. After the artillery is rifled, the resistance of the shell in the barrel increases, and the shell can obtain more gas energy. The most important thing is that the rifle has the ability to give the shell a rotation. After the shell flies out, it spins by itself, which greatly reduces the drag in the air and enhances the accuracy.
The shell was roaring in the sky, just like a meteor, slamming toward the opposite target.
Zhang Mao opened his eyes wide. Soon, he found that his naked eyes were no longer enough. He was busy taking the telescope and lifting it, and he saw that the artillery shell had actually entered the reckless line of red rope.
Zhang Mao took a breath of breath ...
Actually ... hit.
And ... the range of the tiger squatting gun is more than doubled, and it means ... where to play.
Zhang Mao is not stupid. It is natural to know what this increased range means. If this thing is put into the army, it is a weapon of gods, gods, gods ... He is very surprised.
But at this moment, the hill on the opposite side, at this moment, suddenly burst into flames.
Ye ... What's the matter?
Zhang Mao was a little ignorant, was it blown up again?
Can the shells explode?
On the other side of the mountain, in a forest tied with red ropes, the fire was soaring. With a loud noise, the air waves exploded countless branches and jungles into a mess. The sparks caused by the explosion ignited the nearby dead leaves ~ www. EbookFREE.me ~ So, the smoke was rolling.
Zhang Mao took a breath in a moment.
Couldn't help saying: "His mother, it's amazing!"
Zhu Houzhao also raised his binoculars, and cheered.
Zhang Mao's excited old face turned red: "This artillery is powerful, what is so great, Jifan, we have to go to that hill to see, and the old man must see for himself how powerful it is."
Ordinary solid shells, in fact, there is nothing to see, that is, an iron lump fell from the sky, but this thing Fang Jifan can actually bomb twice, so accurate, so range, this is a weapon.
Zhang Mao was an eye-opener. After he was the goalkeeper, would n’t he know how terrible the result would be after this thing appeared.
Like Fang Jifan responded like a child, he hurried towards the opposite hill and hurried away.
Zhu Houzhao and others had to follow up.
Zhang Mao was chopping through thorns, walking vigorously, his face flushed with red, his eyes were about to burst out of his eyes, and countless thoughts came out of his head. ? will not! I thought, if there was such a thing, in my hand, my father would regret to withdraw from it, has it become the most regretful thing in life? will not!

Https: //
Please remember the first domain name of this book :. Mobile version reading URL: