Many people on the south bank of the Suzhou River looked up at the sky. Since the Japanese Marine Corps stopped attacking, the people in the Sihang Warehouse became unruly. They started to set off fireworks. The noise became louder and louder, and the height became higher and higher.
As for using gunpowder as propellant, novices will definitely smile.
Because they didn't know that the propellant of the first generation RPG was gunpowder.
And you will laugh when you see tinplate. The melting point of iron is 1,500 degrees Celsius, and the burning temperature of gunpowder is about 1,000 degrees Celsius.
As for why the warhead is one kilogram, it's because the Gong grenade is one kilogram.
As the "fireworks" continued to rise into the sky, the largest flying monkey even reached a height of 150 meters.
Of course, this is far from the 400-meter range of RPGs, but it is already quite easy to use against infantry. Of course, it is a bit crude, and you still have to use cigarette butts or charcoal sticks to light the fire.
Almost everyone didn't understand what this thing was used for, but Guo Liangjun and Lu Feizhang were moved.
Because this thing is so simple, no one has ever played it before, but no one has ever thought about it transporting things.
Of course, it’s not that China doesn’t have it, but that it doesn’t exist in the whole world. Including Germany’s “Iron Fist”, Eagle Sauce’s “Bazooka”, and the British “piat” would only appear after 1941.
But Guo Liangjun and Lu Feizhang, who were accustomed to using local methods, were moved when they saw these things. Lu Feizhang even used a slingshot to deliver materials to Guo Liangjun.
Bamboo, gunpowder, iron sheets, that's all, there's nothing more difficult to get.
For the Laoba base area, which has always been short of weapons, this is a trick that only a firecracker master can pull off.
"Good stuff, really good stuff..."
In response, Lu Feizhang was ordered to go to the craftsmen in the military camp to see how simple the structure was.
In fact, RPGs are very simple. After all, any bicycle repair shop in Afghanistan could make them. After all, the directional device only plays a directional role and has no technological content at all.
Although the old smoker Li Youtian was submissive in front of Zhang Sixing, when he was in his own camp, he was an out-and-out boss.
"Uncle Yandai, does Mr. Zhang need so many flying monkeys? It will delay us from making helmet mines."
The old smoker who cursed with eyes widened, swung his long pipe as if he was going to hit him and cursed,
"You are such a nagging child that you will hear Commander Zhang's orders. If you keep talking, I won't..."
No matter what others think of Zhang Sixing, Zhang Sixing rescued their miscellaneous barracks anyway. He taught them the helmet mines and bullet mines, including the hundreds of captive soldiers who came, and they were all snatched back from the prison camp.
The big pipe lit the craftsman's head,
"If your baby still refuses to accept it... I will blow your head off."
Just as he was chatting and laughing, he looked up and saw Lu Feizhang. He bared his teeth and smiled,
"Whatever gust of wind brings Captain Lu here to chat with me, if you have any advice, please give me some advice."
Seeing the half-truth and half-false question from the old smoker Li Youtian, Lu Feizhang smiled and took out half a pack of cigarettes.
"Captain Lu has no choice but to start a fire and play tricks without seeing what kind of place this is."
Seeing a gunpowder basin surrounded by the craftsmen, Lu Feizhang, who was worried, smiled and put the cigarette in his pocket.
"Look at Chief Zhang taking you to play with the Monkey Eyes in the Sky. We also have a few people over there who know how to do firecrackers, so come and have a look."
He rolled his eyes at Lu Feizhang, and the old smoker Li Youtian looked like an old god.
"Just watch it. It's very simple. The kids will become nagging after watching it a few times."
As for the launch tube, Lu Feizhang took one look and threw it aside. It was really simple. Anyone who knew how to knock on the chimney could knock it out. The bamboo tube was added to the outside to make it stronger and insulate from heat. Wrap it around the shoulder a few more times.
Hemp rope is that simple.
The most important thing is the structure of the large Sky Monkey.
Roll up a few rolls of a piece of kraft paper and stuff it into a bamboo tube. Then carefully pour the gunpowder into it through a funnel and press it tightly.
There was a young man who was doing it. When he saw that he was picking up a bamboo pipe and was about to smash it, the old smoker caught up and kicked him on the butt and cursed,
"You want to die, baby, please bring us together. Even if there is gunpowder in there, press it tightly and use it slowly and evenly..."
Then untie the rope on the bamboo tube, and there will be a round gunpowder column inside. Then wrap it at both ends, poke a hole, stuff it in, and twist it with fire.
Then the iron sheet is installed on the bamboo pipe, and the gunpowder column is slowly lowered to stabilize it.
As for the arc-shaped elastic wings, they are also sawn from bamboo tubes. The front end has a slight slope to ensure that it will automatically open when facing the wind.
Seeing this, Lu Feizhang already had some understanding in his heart. To put it bluntly, this thing is a large flying monkey, but it can throw a kilogram of things a hundred meters away...
Haha, for Lao Ba, who is short of guns and artillery, is there any better weapon than this?
Let's not throw a grenade, but what is the concept of throwing it with a kilogram of explosives? It is easier if there is no fuse. The bullet has the head removed, and the primer is followed by a nail. When it hits the ground, it hits the nail to ignite the fire, and then...
The charge of the 75mm gun is only 500 grams.
Moreover, this is a temporary emergency production on the battlefield. If the rear can study this thing carefully, even if it is not as useful as the Japanese grenade, it is still a good equipment for building a bunker or something.
Of course, if Lu Feizhang thought that Zhang Sixing only had so much talent and dared to fight a Japanese army in the Sixing Warehouse, he would be underestimating Zhang Sixing's physical and mental abilities.
Because he was familiar with weapons, he also focused on a few empty gasoline cans thrown away in the Sihang Warehouse.
Anyone who likes war movies knows that this thing is the basic material of a gasoline barrel cannon. However, Zhang Sixing gave him a slight modification.
The correct way to use a gasoline barrel cannon is to bury the lower part into the soil when firing.
For the convenience of use, Zhang Sixing slightly modified it. At this moment, someone is holding a hemp rope and wrapping it tightly around the gasoline. Compared with soil, the hemp rope has better toughness.
When using it, you only need to pour a bucket of water on the outside hemp rope, and it will generate prestress due to expansion and prevent overheating and burning.
Beyond that, what's even more important is the cannonballs.
The caliber of this artillery shell is a bit large, and it is a round wooden board wrapped with cloth, which can better hold the breath. After doing it, Zhang Si Xing did not call it an experiment. After all, he did not invent this thing. There are both battle examples and real objects left in the world.
In the end, it was up to the carpenters under Lao Yandian Li Youtian to make a strong wooden frame and fix the dozen gasoline barrel cannons to the flatbed truck.
When in use, the gasoline barrel cannon sits on a sandbag underneath, and a thick wooden board is placed under the sandbag to reduce the pressure on the floor when it is fired.
When all preparations were done, Xie Jinyuan approached Zhang Sixing and made a surprising request.