Suning went up, estimated the distance from the cliff to the cave in his heart, and then tied two safety ropes, put them on Yi Qingxuan and Qin Xiaoru respectively, and slowly put them down.

Yi Qingxuan's athletic talent is not good, it is only compared to Chen Shu and Chen Jing, who were born in dance, compared with other girls, they are undoubtedly much stronger, and even much stronger than the athletic talent of some boys.

Coupled with the length of the safety rope calculated by Suning, the error would not exceed fifteen centimeters, and she quickly found a sense of balance and stepped on the cave.

Next was Qin Xiaoru, because there were responses up and down, Qin Xiaoru didn't have much trouble herself, and arrived at the compartment cave safely.

As for Suning, Qin Xiaoru was still feeling the excitement of levitation in the sky, and Suning didn't know when to stand by his side.

Of course, the two women who have seen too many of his magical performances have long been surprised, and if Suning is helpless, they will feel very strange.

Without further ado, the three of them worked together to empty the entrance to the cave, the rock wall is not solid, it only plays the role of hiding people's ears, no wonder the United States and the military spent countless manpower and material resources to find the submarine, who would have thought that the submarine would be hidden inside the cliff?

As for how Captain Kane got in, Suning is too lazy to guess this question, the current situation is troublesome enough, Chen Shu doesn't know what the situation is, although the three of them found the submarine, but obviously, the submarine is broken, if it is good, the old captain would have driven back to the United States a long time ago, how can he still play the game of exploring treasure with them.

Now in front of everyone, the most important question is whether the submarine can be repaired.

Suning suppressed the anxiety in his heart, and the speed of clearing the hole couldn't help but speed up a few points.

With a loud bang, the last stone wall fell, and the cave was finally rediscovered.

The entire entrance of the cave is an irregular semicircle, with a diameter of up to 30 meters, and the bottom is at least 10 meters away from the top, like a huge armory warehouse gate.

The three of Suning sighed and rubbed their hands, and it was only then that they had the time to check everything in the cave.

The hole was deep, it was pitch black, and nothing could be seen. Not far from Suning in the middle, there is a fusiform object parked, covered by a broken canvas, according to visual observation, the object is about forty meters long, two stories high, it must be a submarine.

On the far left side of the cave is a three-meter-wide, flowing dark river, which is not a mistake to call it a dark river, because the color of the river is as blue as the sea, and it obviously leads to the depths of the sea.

As for where it leads, Suning is not clear. But one thing can be assured, there are no piranhas here, otherwise a few rock walls the size of door panels just smashed into it, except for a two-meter-high splash, there would be no movement at all.

The three of them quickly approached the submarine, Suning lit three torches and handed them to the second daughter, when they went up just now, they thought of the situation in the cave, and made three torches with their overalls, which came in handy at this time.

Suning was in front, and the second daughter was behind, while walking, he ripped off the broken canvas, and came back in a circle, all the canvas was torn off, and the submarine finally revealed its true face after several years.

The fusiform hull, with its deck about three meters above the ground, a long cylindrical watchtower on its head, and a dark metallic glow around the hull, is clearly the famous killer of the deep sea in World War II.

Suning walked around the hull again, and found two torpedo tubes on either side, followed by the special English symbol and the American flag symbol on the hull. Other than that, nothing.

The telescopic ladder went up to the deck, which was equally empty, whether it was dismantled and removed by Captain Kane, or whether the submarine itself did not put anything on the deck.

In the memory of the instructor, there is indeed a memory of submarine driving skills, but the submarines he piloted are all future models, antique submarines from World War II, let alone driving, and I have never touched them.

The upgrading of military science and technology means eliminating outdated and backward technologies and replacing them with more advanced and effective emerging technologies.

Suning is sure that he can't understand some of the techniques of the old antiques during World War II, after all, he is not a maker, but only a little understanding.

Now the question in front of him, the type of submarine and the cause of the failure, these two factors are not known, and the back is empty talk.

However, Suning's anxious bad feeling didn't last long, Yi Qingxuan came out of nowhere, and suddenly spoke:

"I just confirmed that the submarine model is the American R3-4 class small submarine, nicknamed "Little Tuna", which is an improved version of the R3 class, characterized by small size, fast speed, and underwater speed can reach 20 knots per hour, at that time, it was undoubtedly one of the fastest submarines in the world. However, it has one biggest problem. ”

Yi Qingxuan paused, frowned and said:

"There are major technical defects in its transmission system, at that time the United States produced a total of ten 'Little Tuna', after discovering the defects, immediately recalled the furnace for reconstruction, but there are still two ships that cannot be recalled, because they are in service in the Pacific Ocean, and these two 'Little Golden Fish', until now, the United States has never been found. Unexpectedly, one of them would appear here. ”

Yi Qingxuan patted the metal shell of the submarine and sighed with emotion.

Suning can understand it, Yi Qingxuan knows so many American secrets, not just military enthusiasts, where can ordinary military fans identify the major defects of the United States in World War II by their appearance, and recall the submarine that was rebuilt in the furnace, and listening to her tone, I am afraid that I have seen another one.

Other deeper things, Suning doesn't have time to think about it, the problem he is most worried about now is whether he can find the fault!

He hurriedly asked:

"Can it be fixed?"

Yi Qingxuan pondered for a while, hesitated a little, and finally nodded.

"If it's just a transmission problem, I think it's fine," he said, "but I'll have to go inside the submarine first." ”

Immediately, she walked to the bottom of the watchtower, where there was a place that looked like a manhole cover, and motioned for Suning to come and pull it open. Only then did Suning discover that the slightly raised part of the submarine's hull was too hidden for inexperienced people to discover.

Suning couldn't help but feel a little more confident.

It didn't take much effort to pull the lid, and I didn't see any movement from Suning, but I heard a bang, and the submarine cover was opened, revealing the internal space of the black hole.

Yi Qingxuan didn't go in immediately, but waited for about five minutes after the air convection was completed, and then she bent down and carried a torch in.

Behind him, following Suning, Qin Xiaoru also wanted to follow up, but was stopped by Yi Qingxuan, because it was too dark inside and the space was narrow, it was easy to knock down some of the internal structures of the hull and get injured, Qin Xiaoru could only give up.

Suning deeply believes that the future submarine, even if science and technology have progressed a lot, the space inside has always been very narrow, and if you are not careful, your head will be bleeding.

Suning smiled at Qin Xiaoru, signaling that she didn't have to worry, and then followed Yi Qingxuan to bend down and get into the cabin.

Qin Xiaoru was a little stunned, silently sitting at the entrance of the cave with her knees crossed, looking at the raging waves, letting the sea breeze blow away the scattered bangs, not knowing what she was thinking.

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