A nation's industrial development begins with junior engineers.

Chapter 875 Those without badges, go outside!

"Xiaolong! The captain wants us to find out exactly where the snorkeling pipes are on this boat, how many there are, and their exact locations!" Wang Xiaohu snapped out of his thoughts and quickly relayed the order.

"I'm asking now, it's almost done!" Ma Xiaolong didn't even look up, quickly marking the last point on the sketch with a pencil.

After finishing the last stroke, he held the notebook up to the prisoner's face, pointed to the simple structural diagram he had just drawn, and asked him for confirmation: "Here? Ventilation? Confirm?"

The prisoner, enduring the pain, struggled to make out the shape, nodded weakly, and added in broken Chinese, "Hail... stern... port... small..."

"Tiger, come take a look," Ma Xiaolong then handed the sketch to Wang Xiaohu. "This guy confirmed it. Besides the main snorkel behind the conning tower, there is indeed a spare emergency snorkel a little to the left of the horizontal rudder at the stern. It's quite thin! The location is roughly like this!"

Wang Xiaohu leaned over and glanced at the sketch, nodding: "That's right! The captain told us to find something to plug all these 'nostrils'! Let's see how long they can hold their breath in there!"

Ma Xiaolong frowned and looked around at the repair materials scattered on the deck: "Block it up? We don't have anything particularly handy right now... How about we find some hemp fibers, mix them with the sludge from the diesel engine in the engine room, roll them into mud balls, and stuff them in?"

This stuff is pretty hard to remove once it's stuck together..."

Upon hearing this, Wang Xiaohu thought it made sense.

Just as he turned to gather materials, the prisoner who had been cowering suddenly raised his head, a complex expression on his face, and stammered in broken Chinese:

"Smoke...smoke...it's better..."

As he spoke, he gestured with his hands, indicating that he was lighting something and pouring smoke into the vent.

Upon hearing the prisoner's words, Wang Xiaohu abruptly stopped, turned around, glared at him, and said angrily, "Bullshit! Smoking? You think you're smoking your own cured meat?!"

"What's the point of your submarine's exhaust fan? When that thing is on, the airflow is like a vacuum, and we'll choke and end up in the sea before the smoke even gets in!"

"What, you think our submarine doesn't have a ventilation system? Trying to fool me!"

He wasn't just making things up. The submarine's ventilation system is designed to ensure unidirectional airflow, especially when the ventilator is in operation or when emergency sewage needs to be discharged. The large-capacity ventilator will powerfully expel the stale air from the cabin.

Especially the main ventilation duct, where the fan power can reach hundreds of cubic meters per hour. Not to mention smoke, even if you throw a smoke bomb in, it will be instantly drawn out of the boat and will not have any suffocating effect at all.

That's why the dragon and the tiger discussed what materials to use to block the vent, and our Captain Zhao Gang never mentioned the smoke method.

The prisoner, startled by Wang Xiaohu's glare, shrank back and, forgetting all about grammar, hurriedly waved his hands, explaining in even more broken Chinese mixed with gestures:

"No! No! Now... the fan... is stopped! The machine... is broken! Power outage! No wind!" He pointed forcefully to his feet, then to the silent submarine in the distance, "It... isn't moving! Smoke... can get in!"

"broken?"

"Yes! Impact! Second impact..."

"Hey, right, we only found you after you were rammed by the Leap Forward and were covered in grease... Hey, so those bastards actually did a good job? This thing can really work out?"

Wang Xiaohu was delighted and immediately turned around, preparing to go down into the cabin to find something that could produce thick smoke.

Sliding down the gangway into the interior of the 418 vessel, the scene before me was even busier than on the deck.

Deputy Commander Zhou Jianjun, his sleeves rolled up, blood seeping from the bandage wrapped around his forehead, gave a hoarse command: "The weld on the port side of the third compartment is cracked and leaking water! Push up the support column! Quickly! Use the sealing blanket! Press down the oil-soaked sealing blanket! Use the support rod to hold it firmly in place!"

Several sailors were struggling to use thick wooden support pillars to hold up the most deformed and leaking parts of the cabin wall, while others were busy stuffing heavy leak-proof blankets into the cracks.

"Engine and electrical control room! How are the auxiliary machines? Can you supply power to the water pumps?"

"Report! The auxiliary machine is barely able to power one of the main water pumps, but the power supply is unstable! We are working on repairing the lines!"

"Stop one of those self-generating welding machines in the maintenance team, and take off the 200cc gasoline engine from it to power the water pump!"

"Yes……"

Wang Xiaohu squeezed through the busy crowd and found Zhou Jianjun: "Deputy Commander! The ventilation system of the Japanese submarine is broken. I want to use smoke to force it out! Come find something that can produce thick smoke!"

Zhou Jianjun was using his shoulder to support a pillar to help the sailor stabilize his position. Hearing Wang Xiaohu's words, he thought for a moment while panting heavily.

"The ventilation is broken? Go to the engine section, there's oil sludge scraped off before departure, just pour it into the pipes!"

Watching Wang Xiaohu's excited departure, Zhou Jianjun sighed.

"Old Zhao, you're having a good time. Treating them like cowards..."

"But things aren't much better for us at 418. All our radios are damaged, the backup transistors have burned out, and we've completely lost contact with headquarters. They're stuck and can't breathe, while we're shouting ourselves hoarse and no one answers. To put it bluntly, we're just dragging each other out!"

"Lieutenant Commander! We're not just going through the motions, we're doing the opposite of what we're doing!"

The young sailor next to Zhou Jianjun was carrying a wooden stake. His face was red from being pressed down, but he still had the mind to make a joke.

It has to be said, the optimism of our soldiers these days is truly unmatched...

"Hey, you can only talk about the weak overcoming the strong if you're alive. Hey, let me tell you, after we're done here, take your whole class and go sit on the deck outside for me."

"what?"

"What 'ah'?! Party members stay behind, the rest of you, go to the outer deck when you're done! That's an order!"

Zhou Jianjun loosened the secured wooden stakes and took a breath.

He shakily pulled a badge out of his inner pocket and put it on his chest.

"Hehehe, those without badges aren't qualified to stay inside the submarine!"