Chapter 54: It's a Damn Guerrilla Treasure

"For the barrel, Q235 steel is sufficient; the wall thickness should be 3.5 millimeters, and the surface should be sandblasted followed by phosphating. The rocket shell's tail fins should be of a folding design to increase stability and range."

He paid special attention to the rocket engine section:

"The engine combustion chamber should use high-strength alloy steel, and the nozzle should adopt a conical design with a throat diameter of 32 millimeters and an exit diameter of 60 millimeters.

The propellant can be a double-base propellant: 60% nitrocellulose, 37% nitroglycerin, and 3% stabilizer.

If conditions are limited, an improved black powder can be used as a substitute, though performance will decrease somewhat."

What excited Li Mingyuan most was the versatility of the Rocket Launcher.

"This is the perfect weapon for guerrilla warfare," he wrote in his notebook:

"The Single-tube is lightweight and detachable; up to 12 tubes can be combined for organized use.

The firing method is extremely flexible: there are dedicated launchers for multi-tube salvos.

If there is no launcher, a simple tripod can be used.

If there are truly no conditions, digging a slanted pit can also allow for firing.

It can even be used as an Individual Rocket Launcher, carried directly on the shoulder; although the range will be reduced to about 1000 meters, the power remains undiminished.

The simplest guidance system is direct-aim firing; for something slightly more complex, a simple gyroscope stabilization system can be added to improve hit accuracy.

The warhead can be changed according to need; lethal, incendiary, and smoke types can all be adapted. Most importantly, the manufacturing process is simple, and even small factories can replicate it."

"This is a damn treasure," Li Mingyuan couldn't help but curse,

"Fixed use makes it artillery, vehicle-mounted makes it a rocket launcher, carried by a soldier makes it a rocket launcher, and it can even be buried underground to be used as a landmine. Isn't this one of the three dream guerrilla weapons?"

He quickly sketched the complete structural diagram of the Rocket Launcher on paper, already conceiving in his mind how to modify existing equipment in the factory to produce this weapon.

"There are only a few key components: the rocket engine, shell casing, warhead, and launch tube; each can be solved with existing technology. The raw materials for the propellant are also easy to obtain, and the production process is not complex. It is practically tailor-made for us."

"Mount it on a truck, and it's mobile artillery; hide it in a cave, and it's a fixed battery; dig a pit and bury it, and it's a trap; carry it on your shoulder, and it's an anti-tank weapon..." The more Li Mingyuan thought, the more excited he became,

"This is the true jack-of-all-trades, a divine tool that changes the battlefield landscape!"

Li Mingyuan turned to a new page and recorded the production process in detail:

Step one, barrel manufacturing, requires a precision lathe and drill press; the inner bore must be chrome-plated to reduce corrosion.

Step two, rocket shell casing stamping, requires uniform wall thickness.

Step three, propellant assembly, this is the most dangerous step and requires special safety facilities.

Step four, warhead assembly, there are many choices depending on the purpose.

Finally, testing and calibration, mainly to check firing accuracy and safety performance.

He did not sleep for the entire night; the pencil in his hand moved rapidly across the blueprints, and design drawings piled up like a mountain on the table.

At dawn, He Yuzhu got up to prepare breakfast, only to find the light in Li Mingyuan's room still on.

"Uncle Li, you haven't slept yet?" He couldn't help but push the door to ask.

The only response he received was a waving gesture from Li Mingyuan and a brief "Don't disturb me."

He Yuzhu had no choice but to retreat dejectedly and close the door behind him, but he vaguely saw strange blueprints spread out on the table, looking like some kind of tubular weapon, yet not quite like a gun.

Over the next three days, Li Mingyuan completely "vanished from the face of the earth," locking himself in his room and refusing all visitors and interruptions.

Meals were delivered to the door by He Yuzhu, who would gently set them down and hear a "Thank you," followed by no further response.

On the second day, He Yuzhu brought hot food to the door, hesitated for a moment, and then knocked: "Uncle Li, time to eat."

From inside the door came Li Mingyuan's exhausted but excited voice: "Just leave it at the door, I'll eat in a while."

He Yuzhu worriedly set down the food: "Uncle Li, you haven't rested properly for three days now; if you keep going like this, your body won't hold up."

"It's fine, I'm almost done," Li Mingyuan's voice was filled with unconcealable excitement, "It'll be better in a couple of days."

Seeing this, He Yuzhu couldn't say much more; he just gently set down the food, but couldn't resist his curiosity as he left, stealing a glance the moment the door cracked open.

He saw that the table, bed, and even the floor inside were covered in blueprints; Li Mingyuan's hair was disheveled and his beard was stubbly, looking like a mad scientist.

He Yuzhu squinted, trying hard to see what was drawn on those blueprints, and saw that those strange tubular objects seemed to be assembled into a massive launch device, with various complex mathematical formulas alongside them.

"What is this thing? What new invention is Uncle Li tinkering with again?" He muttered to himself as he walked away.

The weekend soon arrived, and the Siheyuan was bustling with activity.

Jia Dongxu and Qin Huairu's wedding was imminent, and the courtyard was decorated with lanterns and streamers, full of joy.

Yi Zhonghai started directing everyone to set up the venue and arrange the seating early in the morning.

"Lao Liu, move that table in a bit more, don't block the path." Yi Zhonghai was full of joy, directing with authority, as if this wedding were being held for his own son.

He Yuzhu was busy and happy, going to the vegetable market early in the morning to buy various ingredients, and immediately started preparing upon his return.

Although he didn't say it out loud, he was working extra hard, hoping to perform well in front of Qin Huairu.

"Shazhu, this meat is cut well, even neater than I used to do." Qin Huairu arrived in the kitchen at some point and stood behind He Yuzhu, speaking softly, her voice as sweet as honey.

He Yuzhu jumped, almost cutting his finger, and hurriedly turned around to see Qin Huairu's beautiful face close at hand; his heart rate immediately accelerated:

"Qin... Sister Qin, why... why are you here?"

Qin Huairu smiled slightly, her eyes darting: "I came to see if I could help with anything. I heard you were preparing all these dishes by yourself; you're really capable."

He Yuzhu's face immediately turned as red as a ripe apple: "It's... it's nothing, these are just small matters."

"By the way..." Qin Huairu looked left and right, confirming no one was paying attention, and leaned closer to He Yuzhu, her voice as light as a feather brushing by: "That smoked fish yesterday was delicious, thank you for sending it over secretly."

He Yuzhu's face turned even redder, and he stammered: "You're... you're welcome, I'm glad you liked it."

Qin Huairu took another step forward, almost pressing against He Yuzhu, and whispered: "We'll be neighbors from now on, I hope you'll look after me."

After saying this, she winked at He Yuzhu and turned to leave the kitchen.

He Yuzhu stood where he was, as if hit by a freezing spell, and it took him a long time to come back to his senses.

"She... she's interested in me?" He foolishly muttered to himself, his heart already floating on the clouds.

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