474, punch, metal bullet and gunpowder propelled grenade three
After a while, a team of workers arrived at the testing site carrying several long wooden boxes.
They used a crowbar to open the lid of the long wooden box. There was a long metal object stuck in the wooden support, surrounded by shock-absorbing straw.
Tu Shanyue and Lin Yueru watched curiously and saw a worker taking out this long thing and putting it on his shoulders. They couldn't help but gather around to watch it up close.
"Madam, Second Madam, no one can stand behind this, please stand to the side." When Chang Zhu saw the two ladies running to the back to look, he suddenly broke out in a cold sweat and quickly stopped him.
Yang Fan quickly pulled the two of them over, stood behind the rocket launcher and recoilless cannon, and looked into the nozzle at the back. Wasn't this looking for death?
"Master, what is this thing? It looks so strange." Xiao Niangpi couldn't help but ask.
"This thing is called the Iron Fist. It is a cannon carried by infantrymen. Its scientific name is a gunpowder-propelled grenade. In essence, it is a front-loaded, smooth-bore, recoilless rifle."
Lin Yueru and Xiao Niangpi were confused when they heard it. It was strange that they could understand so many terms.
In fact, this thing was invented by Mustache back in the day and was used to fight T34 tanks among the people. It was a crude thing.
At that time, in Berlin, no matter whether they were 70-year-old men or 10-year-old children, everyone had one hand. As long as they were aimed at a close range, they could directly fire the T34.
This thing is actually very simple.
The early Iron Fist generation used an iron pipe filled with 30 grams of black powder to launch a one kilogram metal warhead to a distance of 30 meters.
Yang Fan has black powder. There is also special propellant such as maroon gunpowder. The steel pipe can be made whether it is obtained by a fool collecting scraps, cast by oneself from open-hearth steel, or bored after forging.
For the warhead charge, Yang Fan has high-explosive fertilizer explosives.
The only difficult thing is the fuze.
This thing is high-tech. From its invention to modern times, it has been a high-tech that countries attach great importance to.
Yang Fan's warhead is also spindle-shaped, but it doesn't have a copper shield or hollow charge. He doesn't use it for anti-armor, so it's boring. What's inside is actually a layer of chemical fertilizer explosives and steel slag and steel ball fragments. The outside is just a thin iron sheet.
This thing is a super-caliber projectile. The projectile is fired from the outside of the chamber. The warhead does not have to withstand the bore pressure like a cannonball, so it does not need a strong shell. It only needs a fairing to reduce air resistance.
Therefore, the charge can be increased, just like a mortar shell. Because of the low chamber pressure, a strong shell is not required, so the charge is much more than that of a shell of the same caliber. The power is also much greater.
The fuze and the warhead are usually stored separately. When launching, just screw the fuze on the warhead to prevent accidental triggering and explosion.
Yang Fan's fuse is still made of sulfur powder and glass powder mixed with elastic, copper wire, and small steel pillars.
Because the warhead is a spindle, when it hits the ground, the fuze on the head must hit the ground first.
The small steel column touches the ground and squeezes the copper wire backward. Under the action of the spring, the spiral copper wire rubs back and forth against the mixture of glass powder and sulfur powder, causing it to catch fire.
The firing rate of this kind of fuze is not high and may cause dud bombs. In order to increase the firing rate, Yang Fan also instructed the pyrotechnics team to add backup measures.
That is to say, a time fuse is added.
After the grenade is launched with black powder, the propellant will ignite the fuse behind the grenade, which is a timed burning fuse.
If the grenade hits the ground but the fuse fails, the fuse will burn from the rear of the grenade to the chamber within about three seconds, detonating the grenade.
In this way, the trigger fuze and the time fuze form a double insurance for firing, which basically guarantees that this kind of gunpowder-propelled grenade can have a fire rate of more than 95% and can be used on the battlefield.
Later generations of Iron Fist continued to increase the range, from thirty meters to sixty meters. Finally, for the best combination of range and accuracy, the range was finally stabilized at sixty meters.
On the battlefield in this era, the accurate range of bows and arrows was often only more than thirty meters. Jiannu often rushed to more than thirty meters before releasing arrows. This was to ensure the effect of accurate shooting.
At this distance, Jiannu can shoot directly into the eye.
This gunpowder-propelled grenade has a range of 60 meters, which is sufficient in the current battlefield environment. After all, this is a weapon assigned to infantry.
Later, the Soviet Union's RPG2 was a deeply improved version of Tekken. The range was increased to 150 meters. However, the propellant was still black powder.
Theoretically speaking, it is possible to create a beggar's version of RPG2 in this era. There really are no big technical barriers.
In fact, it is just a steel pipe, an ordinary one will do. The gunpowder is sprayed out from the back, and it cannot bear pressure or force. The recoilless gun barrel does not have to be a seamless steel pipe.
It can be fired out, and it also needs to be able to explode loudly, and a double safety fuze is enough.
It’s not about fighting tanks, just making a high-explosive grenade is enough. It’s really not that difficult.
One kilogram of warhead contains a full 500 grams of fertilizer explosive. The fertilizer explosive is equivalent to 60% of the power of TNT, which is 300 grams. This amount of explosive is already very terrifying.
"Sir, this thing is very dangerous. Please go to the bunker and watch it, sir." Chang Zhu said quickly. This thing is not a machine gun, and it is not a joke. If there is an accident, he cannot bear the responsibility.
Yang Fan had no objection. This thing was not something to be taken carelessly. He quickly took Xiao Niangpi and Lin Yueru to a cement bunker to watch.
"Master, we have made three backups of the ignition device. The first is the firing mechanism of the flintlock gun, the second is the pull tube of the grenade. The third is to directly use an open flame to ignite the fuse of the propellant. There is always one
It can shoot out gunpowder-propelled grenades."
"Okay, you've done a good job. You just need to make more backups. We can't let the soldiers sacrifice themselves in vain on the battlefield with weapons that can't be fired."
After understanding the principle, Xiao Niangpi and Lin Yueru were not so surprised. It was not as shocking as a machine gun. After all, there were too many weapons in the Ming Dynasty that relied on gunpowder to propel their launch.
This chapter is not over yet, please click on the next page to continue reading the exciting content! What a dragon emerges from the water, a hundred tigers rush arrows, swarm of bees. Isn’t it just that the warhead is replaced with a metal one, and high-explosive explosives are added, what’s the benefit?
Strange.
"Sir, the range we are currently making is sixty meters. We strictly followed the drawings. Later we tried to install more propellants to increase the range. However, after the range exceeded 60 meters, the accuracy dropped seriously. Later it was maintained at six
Ten meters range."
"Sixty-meter range is enough. After all, this thing is assigned to the infantry squadron. The battalion level will be equipped with a three-pounder gun. That has a range of 500 meters. In the future, we will continue to develop Congreve rockets, which are also long-range.
You don't need this thing." Yang Fan said.
Yang Fan knew that the RPG2 of later generations had a range of 150 meters and also used black powder propellant. He would study this slowly in the future. Now that it is urgently needed on the battlefield, he did not wait for the product to finally mature.
"Sir, would you like to launch it?"
Yang Fan nodded.
This time, Yang Fan didn't need to say anything. Both Xiao Niangpi and Lin Yueru took the initiative to bring earplugs.
"Master, this thing has a disadvantage, that is, it cannot be launched in a confined space, and there cannot be people behind it, otherwise it will be scorched."
"This problem cannot be solved in the short term. It is a pity that it is not convenient to use in the trenches. However, any weapon has weaknesses, and there is no way around it." Yang Fan said.
After the order was passed, the signal soldier's flag was waved.
The worker pointed at the sky at a 45-degree angle and pulled the trigger.
The flintlock gun fired quickly, and the gunpowder propellant was ignited. With a bang, the steel pipe made a loud noise, and the nozzle at the rear of the steel pipe spewed out flames and thick smoke.
In an instant, the grenade flew out, dragging a smoke trail and drawing a parabola in the air.
Chang Zhu breathed a sigh of relief. The flintlock bolt did not lose its chain this time. There was no need to pull the flame tube or manually light the fuse.
The grenade was shot out in one go.
The muzzle velocity of the grenade is obviously not too high because it is visible to the naked eye.
If it is a copper cannon, the speed of the spherical solid projectile exceeds the speed of sound and is completely invisible to the naked eye.
The grenade was not stable in the wind and swayed a bit.
Today there is a level 3 cross wind, which is another problem with this weapon. It is easily affected by meteorological interference, resulting in a decrease in accuracy.
If it is slightly windy or under complex weather conditions, it will be difficult to hit accurately.
Although there is a tail boom with stabilizing wings behind the grenade, the actual effect is not ideal.
The grenade flew precariously over the top of the parabola, and then began to fall.
Under the acceleration of gravity, it plunges towards the target area.
Finally, it landed in a large circle with a diameter of fifteen meters, drawn with white gray lines.
The grenade hit the ground but did not explode.
There are a lot of rocks on the ground here, and the complicated ground conditions caused the fuse to malfunction.
Yang Fan didn't seem to notice Chang Zhu's embarrassed expression and counted softly, one, two, three.
There was a loud bang, and the time message came into effect.
With the same power of 300 grams of TNT, this one kilogram warhead exploded into an orange-red fireball. It was very dazzling in the dark weather.
The steel slag, steel balls and iron shell wrapped around it exploded instantly and scattered in all directions. The wooden piles and scarecrows erected around it were in a mess, broken and shattered under the impact of dense prefabricated shrapnel.
The reference objects placed around mark the distance. The effect can be clearly seen.
"The killing radius is fifteen meters. Okay, everyone who participated in the trial production will perform a meritorious service and be given a bonus of one hundred silver coins each." Yang Fan said excitedly.
With these two artifacts, not to mention the prairie, Liaodong Yang Fan dared to take a group of servants to explore.
