Many people on the south bank of Suzhou Creek looked up at the sky, and since the Japanese marines stopped attacking, the people in the Sixing warehouse had become serious. They started setting off fireworks, and the movement became louder and higher.

As for using gunpowder as propellant, the whites will definitely laugh crookedly.

Because they didn't know that the propellant of the first generation of RPGs was gunpowder.

And you will laugh when you see white iron, the melting point of iron is 1500 degrees, and the temperature at which gunpowder burns is about 1,000 degrees Celsius.

As for why the warhead is one kilogram, because the Gong grenade is one kilogram.

As the "fireworks" continued to rise into the air, the largest "Sky Monkey" even flew at an altitude of 150 meters.

Of course, this is a huge gap to the 400-meter range of an RPG, but it is quite useful against infantry. Of course, even if it is a little dirty, you still have to use cigarette butts or charcoal sticks to light the fire and twist.

Almost everyone didn't understand what this thing was for, but Guo Liangjun and Lu Feizhang's hearts moved.

Because this thing is so simple, no one has ever played with the Sky Monkey, but no one has thought that it will transport something.

Of course, it's not that China doesn't have it, but the whole world doesn't have it. Including Germany's "Iron Fist", Eagle Sauce's "Bazooka", and Britain's "PIAT" will not appear until after 1941.

But Guo Liangjun and Lu Feizhang, who are accustomed to using local methods, were moved in their hearts when they saw these things. Even Lu Feizhang used a slingshot to send materials to Guo Liangjun.

Bamboo, gunpowder, iron sheets, just that, there is nothing more difficult to obtain.

For the old eight base areas, which have always lacked weapons, this is a trick that can be played as long as you find a firecracker master.

"Good thing, really good thing......"

In this regard, Lu Feizhang was ordered to go to the craftsmen of the miscellaneous barracks to see how simple the structure was.

In fact, RPG is very simple, after all, a random bicycle repair shop in Afghanistan was built back then. After all, the directional device only plays a directional role, and there is no scientific and technological content at all.

Don't look at the old cigarette pouch Li Youtian is submissive in front of Zhang Sixing, but when he is in his own camp, he is an out-and-out boss.

"Uncle Tobacco Bag, does Chief Zhang want so many monkeys, delay us to make steel helmet mines."

The old cigarette pouch who was glaring and scolding picked up his long cigarette pouch and scolded as if he was going to beat,

"Your baby's skin is tightly nagging, and Chief Zhang's order will be heard, and if you say more, I won't ......"

No matter what others think of Zhang Sixing, anyway, their miscellaneous barracks were rescued by Zhang Sixing, and the steel helmet mines and bullet mines were taught by others, including the hundreds of captive soldiers who came, all of whom were snatched back from the prisoner camp.

The big cigarette pouch lit the craftsman's head,

"If your baby doesn't accept it again...... Watch Lao Tzu pop your skull. ”

Just as he was talking and laughing, when he looked up and saw Lu Feizhang, he gritted his teeth and smiled,

"Which gust of wind blows Captain Lu here, if you have any advice, just put it down."

Seeing the old cigarette pouch Li Youtian's half-truthful inquiry, Lu Feizhang smiled and took out half a pack of cigarettes.

"Captain Lu can't help it, if you don't see what kind of place this is, you dare to light a fire."

Seeing a powder brazier surrounded by the craftsman, Lu Feizhang, who had something to do, smiled and put the cigarette in his pocket.

"Look at Chief Zhang taking you to play this big monkey eye fever, we also have a few people there who can do artillery battles, just come and see."

Rolling his eyes at Lu Feizhang, the old cigarette pouch Li Youtian looked like the old god was there,

"Just look at it, it's very simple, and the babies will do nagging after watching it a few times."

As for the launch tube, Lu Feizhang glanced at it and threw it aside. It's really simple, and anyone who can knock on a chimney can knock it out. The bamboo pipe is added to the outside to make it stronger and can also insulate the heat. Where you carry it on your shoulder, wrap it around a few more loops of hemp rope as simple as that.

The main thing is the structure of the large monkey.

A piece of kraft paper rolls several rolls and stuffed into a section of bamboo pipe. Then the funnel carefully poured the gunpowder into it and pressed it carefully.

There was a young man who was doing it, and when he saw that he was picking up a bamboo pipe to be picked, the old cigarette pouch rushed up and kicked him in the ass, and scolded,

"You baby wants to die, Mora is with us. There is gunpowder in it, and it is pressed tightly, and the strength should be slow and even......"

Then untie the rope on the bamboo pipe, and inside it is already a round powder column. Then wrap the two ends, poke a hole and stuff it into a fire twist.

Then the iron bamboo pipe was installed, and the gunpowder column was slowly lowered to stabilize it.

As for the rounded wings, they are also sawn out of bamboo tubes. The front end has a point bevel to ensure that it will open automatically when windy.

Seeing this, Lu Feizhang already had a little understanding in his heart. To put it bluntly, this thing is a large sky monkey, but it can throw a kilogram of something a hundred meters away......

Hehe, for the old eight who lacks guns and cannons, is there a better weapon than this.

Let's not throw grenades, what is the concept of throwing a kilogram of explosives at it. What is not fused that is simpler, the bullet is removed, and the primer is followed by a nail. The nail ignites the ignition, then ......

The charge of the 75-mm gun was only 500 grams.

Besides, this is a temporary emergency manufacturing on the battlefield, if you study this thing well in the rear, even if it is not as good as the devil's grenadier, but it is quite a good equipment to build a bunker or something.

Of course, if Lu Feizhang thought that Zhang Sixing was so good at Taoism, he dared to work hard with a devil brigade in the Sixing warehouse, it would be too much to underestimate Zhang Sixing's hands-on and brain-using abilities.

Because he was familiar with weapons, he stared at the empty gasoline barrels thrown in the four rows of warehouses.

Anyone who likes war movies knows that this thing is the basic material for gasoline barrels and cannons. However, Zhang Sixing changed it slightly for him.

The correct way to use a gasoline drum cannon is to bury the lower part in the soil layer when firing.

And for ease of use, Zhang Sixing has slightly modified it. At the moment someone is holding a hemp rope and wrapping it tightly around the gasoline. Relative to soil, hemp rope has better toughness.

When you use it, you only need to pour a bucket of water on the outside hemp rope, and it will be prestressed due to expansion, and it can also prevent overheating and burning.

In addition to this, more important are the shells.

The caliber of this shell is a bit large, and the round plank wrapped in cloth is better able to hold its breath. After doing a good job, Zhang Sixing did not call it an experiment, after all, this thing was not invented by him, and it has both war examples and physical objects.

In the end, it was the carpenters under the old cigarette pouch Li Youtian who made a strong wooden frame and fixed a dozen gasoline barrels and cannons to the flatbed truck.

When used, the gasoline drum cannon sits on sandbags underneath, underneath which are padded thick planks to reduce the pressure on the floor slab when fired.

When all the preparations were made, Xie Jinyuan found Zhang Sixing and made a surprising request.