710. Unconscionable cannon test firing (supplement to yesterday’s chapter)

Style: Historical Author: A book full of poems and thousands of flowersWords: 2423Update Time: 24/01/11 18:58:56
Judging from the military history of our army, generally speaking, quite a few people, including some documentary records, believe that the inventor of the "heartless gun" was Nie Peizhang, the engineer company commander of our army who came from the Northeast Army.

But internationally, this simple projectile weapon, or its similar explosive package projectile device, appeared very early.

As early as World War I, the British army used projectile barrels called "Levins cannons." This kind of heartless cannon is actually not my rabbit’s original creation.

The British production method at that time was also very simple. It is to seal the bottom of a 300mm large-diameter smoothbore steel pipe, and then load the propellant, sealing device, and shells in sequence.

The British Levins gun mainly fired incendiary bombs. It's not like my rabbit fired explosive packets.

After installing the cannon, set the launch elevation angle of the projectile barrel according to the target to be attacked. After fixing the elevation angle, ignite the propellant and eject the projectile.

Yang Fan first made a small-caliber test shot to try. The first one was not as big as a large oil drum. At that time, gas and oil barrels were made from readily available materials.

There are two types of ammunition for Levens guns.

The first was a three-gallon gasoline drum used to burn local targets.

The second one is a gas bomb.

What Yang Fan copied was actually the Li Wensi cannon. The range is about 180 meters. This distance exceeds the direct shooting distance of the bow and arrow, but is still within the throwing distance.

There is oil flowing out of the ground naturally in that place in northern Shaanxi, and mining began as early as the Song Dynasty.

Yang Fan went to Ordos to conquer this time. This plateau is located in the northern part of northern Shaanxi. Collect more oil then. Using the method of distilling liquor, gasoline can be distilled. If you want to make incendiary bombs, it’s not a big problem.

Yang Fan asked the craftsmen to bury the ejection barrel at a 45° angle.

Then he guided them and prepared the propellant on a scale on site. A silk-wrapped propellant pack was prepared.

It's a pity that Yang Fan's maroon gunpowder is not available here as a special propellant. Maroon gunpowder burns evenly and linearly. It doesn't burn as fiercely as black powder. Not easy to explode.

Plus a 300mm diameter cork board as sealing material to prevent air leakage. When the cork is under pressure, it will automatically expand, plugging the gaps and increasing the range.

Then put another cylinder wrapped in cowhide inside. It is filled with twenty kilograms of gunpowder that Yang Fan prepared on site.

Daming's gunpowder formula is definitely not as good as Yang Fan's ultimate formula for later generations.

In fact, the main difference lies in the nitrate content. Modern black gunpowder formulas have a high nitrate content. In order to enhance the power, white sugar was added to the statue of Yang Fan.

Zhang Shize quickly took out his notebook and shamelessly wrote it down.

This bastard never gives up any opportunity to learn from Yang Fan.

"What are these white particles you added?" Zhang Shize didn't know they were white sugar.

In fact, white sugar has been produced since Ming Dynasty, and the yellow mud filtration method was used.

As long as he tastes it, he will know that it is white sugar, but he does not dare to taste it randomly. Who knows what Yang Fan added to it. His master is a Taoist priest, and if he is poisoned, it will be destroyed.

The old god Yang Fan said calmly: "One sulfur, two nitrates, three charcoal, plus a little Da Yinwan." The explosive power of sugar is four times that of tnt. As long as it is used properly, it is definitely an explosive power multiplier.

"This is my Yang family's secret recipe. Do you want to learn it?" Yang Fan said confidently.

"Tch, I don't like to talk." As a senior yamen official, Zhang Shize also has self-respect.

"Okay, everyone hide behind the big rock thirty meters away. You can step on the soil to make it firmer."

Then, a large group of people stayed away. Hide behind the big rock.

This big rock is a wavy monolith more than two meters high and more than ten meters long, which is enough to protect everyone.

It's not that Yang Fan is being cautious, the point is that this thing is really unreliable and very prone to accidents. Many times, before hitting the enemy, one's own artillery crew will be blown away first.

The target that Yang Fan aimed at was a large locust tree in the distance. This tree has a diameter of three feet. I don't know how many years it has been.

It is now dead, but the tall trunks and branches are still there, which looks very scary in the dark night. Anyone who comes out to urinate in the middle of the night will look like an old Montenegro monster. There were many round stones under the tree, which looked just like the big tree Lin Chong encountered in the wild boar forest.

Yang Fan took out a lot of industrial earplugs from his backpack and distributed them to everyone. Xiao Niangpi and Lin Yueru were very familiar with this and put it in their ears. Everyone also followed suit and plugged their ears.

"Who is going to light the fire? Which of you is going to go?" Yang Fan turned around and asked.

A group of craftsmen collectively took a step back. A stupid boy of sixteen or seventeen years old was exposed.

Zhang Shize grinned, patted his shoulder and said, "Okay, good boy, you have the guts. What's your name?"

This silly kid was so frightened that his legs were shaking. He trembled and said, "The little one, the little one is called Qu Zhiping."

"Take it, go ahead." Zhang Shize handed the torch to him.

The young man went there tremblingly.

The fuse was more than ten meters long. After the boy lit it, he turned around and ran back like a rabbit that had been hit by an arrow.

Yang Fan and Zhang Shize poked their heads out of the gap in the big stone to see the heartless cannon in the distance. I saw the barrel of the cannon sticking out of the ground diagonally, about a foot long. The lead crackled and burned.

Xiao Niangpi and Lin Yueru couldn't help but be curious, and stuck out their little heads from the left and right sides of Yang Fan to follow. Yang Fan pressed it back again. The angry little girl stepped on his foot.

The burning time of the fuse was not long, but everyone was very nervous. It feels like a long time.

boom! There was a loud bang.

Fire and flames burst from the muzzle. The back seat of the heartless cannon. Then it was directly knocked into the soil by the reaction force during launch and was invisible.

A cylindrical yellow object flew out of the muzzle. This method of firing does not have a large chamber pressure, because the exit speed is not fast, and the trajectory of the powder package flying out can be seen with the naked eye.

There is no wind today, and the big dead locust tree also has a huge crown. Then the cannonball fell on the tree crown. Under the action of gravity, many branches were broken, and then it hit a thick branch and got stuck.

After a few seconds, the fuse burned into the powder bag.

With a loud bang, twenty kilograms of black gunpowder exploded into an orange-red fireball directly on the tree crown.

Hot air waves hit. Everyone felt their clothes fluttering in the hot wind.

It was already very cold at this time, but everyone still felt the scorching wind more than 200 meters away.

Lin Yueru and Xiao Niangpi immediately stretched out their little heads to take a look after the shock wave passed.

"Wow! It's so scary." Xiao Niangpi expressed her amazement using the words she learned from Yang Fan.

"Holy shit, shit, shit" Zhang Shize also used Yang Fan's spoken language to express his dumbfoundedness.

Lin Yueru covered her mouth with her small hands in surprise. A pair of big eyes were widened, looking in horror at the huge locust tree in the distance that had been burned into a torch.

Yang Fan looked at the huge torch in the distance and felt very satisfied. He knew that if white sugar was not added, it would not have this effect. White sugar has the added benefit of burning properties.

When we reach northern Shaanxi, we can make incendiary bombs. Yang Fan felt that incendiary bombs were more effective against city walls than gunpowder packets.

The long-lasting burning can make the enemy unable to defend.

Yang Fan knew the formula for an incendiary bomb, which was definitely more effective than the British firing a three-gallon gasoline barrel. That’s the Molotov cocktail recipe. Yang Fan remembered that the formula was gasoline, sugar, and some scrap rubber.

The incendiary bombs made in this way are enough to turn the city wall into a sea of ​​flames.