Conan: The Mechanic

"Okay, next, please follow me to the CIC (War Situation Center With such a sound of guidance, Inoue Self-Defense Officer led everyone along the passage to the simulated CIC-according to the schedule, they were about to visit the anti-air combat drill.

"What's the matter?" Conan asked, seemingly realizing that there was something wrong with Ayumi next to him.

"It feels like we are following behind them, it's kind of empty..." Ayumi looked at the empty passage behind her with some worry. "Not suitable."

There were 40 or 50 passengers on board, and because the CIC was not designed with observation purposes in mind, the interior space was not large. In the end, only more than 20 people were allowed to go to the CIC—most of them were not very good. The children occupying the space, and among the people Chiba knew, the only ones over fifteen years old seemed to be Maurilan, Suzuki Sonoko, and the white-haired woman who came with Suzuki Sonoko.

"I didn't expect that Hotaru-senpai would give you the qualification to draw." At the same time, at the front of the team, Maurilan was also saying this to Suzuki Sonoko. "I thought he was going to come to the scene with Fujiwara-senpai."

"Yeah, this is a rare experience. It's more exciting than sitting in a restaurant and watching a projector." Sonoko was obviously quite surprised to be given such a qualification.

"I'm also surprised if you mean those two children," the white-haired woman took out a folding fan from somewhere and nodded. "That little brother actually gave me the ticket too."

"Prepare for public drills and combat training!" The alarm bell suddenly rang out in the passage, and the command sound with a little electronic sound also reverberated in the ears of everyone through the loudspeaker in the passage.

"It's about to start." Qianyu was obviously not used to such a loud battle alarm, and said after frowning.

"Everyone is seated, this ship is about to engage in an anti-air battle, all personnel please take their positions as soon as possible." Such a call sign sounded immediately.

"Will we not catch up?" The white-haired woman asked with a slightly worried expression.

"It doesn't matter, the front is not really important, our current speed is in line with the plan," Inoue pointed to the front. "We'll be at CIC soon."

……

At the same time, in the restaurant, people who were not selected were sitting in their seats, looking at the large projector in front - the lights had been turned off, so the picture projected by the projector was quite clear: it was the image of a camera above the CIC. perspective.

In the last row of the restaurant, Hotaru and Fujiwara were seated in a place with a rather poor view—and that seemed to be done on purpose, since there were plenty of empty seats in front of them, and everyone else sat in the front row with the best view.

"You don't want me to see it," Fujiwara said, looking at the curtain in the distance. "You got the draw just now, but you have to hand it over to someone else, and I have to hand it over to me."

"Because I just want to hang out with you, not with the organization's spies," Hotaru said, lying on the table lightly. "If you are really put in, then the joke will be too big - anyway, your eyesight should be able to see the liveliness that laymen can understand from the screen here, and you won't be let in to endanger national information security. already."

"What kind of attitude do you have towards me?" Fujiwara sighed and looked at Hotaru with a curious look. "Bring me here without letting me immerse myself in the scene, does this count as stinging my appetite?"

"Did your appetite?" Ying suddenly showed a mischievous expression. "Do you know what it means to whet your appetite?"

Fujiwara didn't realize what Hotaru meant at first, but he immediately felt Hotaru's hand sneaking out from under the table, playing with something lightly. "you……"

"Don't worry, when I say hoarding your appetite, I'm sure it's just hocking your appetite, and I won't let you here... ah--" Hotaru said with a smile halfway through, his face suddenly changed--Fujiwara also had a different tone. Lying on the table, he also counterattacked equally with his restless hands. "Reciprocity!"

Of course, they did these things by wasting such a once-in-a-lifetime opportunity to observe, not really because the desire was so strong, but really just because the exercise was too boring - noisy and boring.

……

"I regret that I wasted my time here," Qianyu sighed while standing in the front row. "Really, I regret..."

"Did you know that this would be the case?" Haibara Ai was quite calm.

"I thought they would be a little sincere," Chiba shrugged. "I didn't expect them to actually invite us to watch such a boring drama."

"Perhaps for them, this is a very open behavior to civilians." The white-haired woman still held the open folding fan in her left hand, and at some point in her right hand, she held a lighted dial. The Quartz watch said that while looking at the members of the Self-Defense Force who were busy ahead.

In such an atmosphere that Qianyu felt a little embarrassed, the air combat drill ended like this.

"Okay, this anti-air combat drill is over, the next thing is—" As Inoue said this, the Self-Defense Force member who was watching some equipment behind him suddenly shouted loudly.

"Sonar response detected, nationality unknown!"

"Start detecting target α!"

"α target, azimuth 5 degrees, distance 3400, close to the direction of our ship's advance!"

"?" Qianyu was taken aback by the sudden movement - in the previous drill, the self-defense team members used the volume of their speech, but now these few words seem to be really scared by something, and then shouted out the same.

Beside him, Haibara Ai also felt that something was wrong, and looked at him with a slightly subtle look.

When they were a little confused, the ship's broadcast sounded again.

"I'm Captain Tateishi," the voice that issued the command to start the exercise sounded again. "All radars are fully turned on to search for enemies, and I will go to CIC immediately!"

[In the case of the exercise, do you really need the captain to participate in the exercise? 】

While Chiba was thinking like this, the CIC's Self-Defense Force personnel continued to communicate.

"α target, same direction and same speed, speed force 4, distance 3350!"

"Received, please pay close attention to the potential temporary steering shift action and prepare!"

"Pay close attention to the potential attack potential of the target!"

"No response to the IFF signal!"

"Reflection results show large irregular objects~www.readwn.com~Exclude living things and natural objects! Consider non-friendly submersibles!"

At the same time, behind Qianyu and beside Suzuki Sonoko, the white-haired woman was as motionless as a wooden sculpture, just holding the watch and blowing the folding fan, as if all this had nothing to do with her.

On the inside of the folding fan, the five colors of red, blue, white, orange, and green are evenly distributed on the fan surface.

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The discovery method set in the original book is active sonar (unpowered underwater shipwreck, a bit too embarrassing for the passive sonar system), the distance is 8000 meters, and the speed force is 10. If it's 10 nautical miles as I understand it (which is ridiculously fast for a shipwreck that's drifting down the river), that means the thing drifted for at least 15 minutes to get to the 3000m line. But the problem is, when the distance is 8000, the captain starts from the cockpit, and when the distance is 3100, he has just walked to the battle center - 15 minutes, he can climb from the bow to the stern and back.

At the same time, according to the analysis paper on the sonar of the Aegis system by the Dalian Naval Academy of CNKI... They pointed out that in the shallow sea in summer, since the surface channel hardly exists, the reverberation in the shallow sea is too heavy, and the bottom reflection is seriously affected by the water depth display and other factors, so Compared with the omnidirectional 35-nautical-mile detection capability of the deep sea (from the first convergence area), the detection capability of the active sonar in the shallow sea in summer is about 1-2 nautical miles.

Considering that it was only 30 minutes after leaving the port, the water was too deep to be suitable, and that it was the beginning of August with the scorching sun, so I cut the distance and the speed of the unidentified submersible by more than half, which was in line with the silent sailing speed that submarines should have in this era. , also in line with the captain's speed.