690 - - 21-02 Submarine



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"Ah, it's a nice hot spring.

Jin thinks as he soaks in the hot spring.

"Why don't we use a torpedo ...... that runs through the water with a force generator, cuts a hole in the opponent, and comes back? If it falls into enemy hands, they'll be able to analyze it."

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"But, Father, that's ......."

Reiko quickly points out. The same is true for the golems that Jin has created.

"Oh, I see. So we can make them explode if they fall into the hands of the enemy?

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"Yes, that's right."

"Hmm, but I don't know. I'm not sure I like it.

I have a feeling that they will use them for convenience, and then cut them off when they become inconvenient.

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I don't mind so much, though, since the golems have wills, and I let them make their own decisions.

"I see, we can make them so that they will never be caught by anyone that they would normally be considered."

Jin's golems are also made to be as good as ...... ordinary, or even better than ordinary opponents.

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"Let's do that."

Jin, having reached a conclusion, got out of the bath before he got too hot.

In the changing room, Reiko wipes his back. This was business as usual.

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Even though they were engaged, there was no way to make any progress between the natural and naive Elsa and the hard-core, naive Jin.

Not to mention that Jin was so old that one of his classmates in junior high school once called him "like an old man," and he had the mindset that premarital s*x was something he did not want to do.

Jin went out to the porch to cool down his overheated body. There was a guest in front of him. It was Elsa, as we all know.

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"...... Jin, sir."

Jin is not very happy about this as he feels that she is too distant, but he holds his ground as this will lead to another sterile discussion.

"Is Elsa taking the evening off too?"

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"Hmm."

The island of Horai, located on the Tropic of Cancer, is quite warm even in winter.

The moon in the night sky watches over them as they cuddle together without saying a word.

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It was not .......

"Father, Miss Elsa, you'll catch a cold from the hot water.

Reiko, the faithful automaton, called out, concerned for their health.

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"...... should we take a rest now?"

"Yes."

"Good night, Elsa."

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"Good night, Jin-san."

Good night, Mr. Gin.

Well, the day has come, and Jin is finally ready to start building a submarine.

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By the way, Jin ......

Erza, who seemed to have an idea, called out to him.

"Are you keeping track of the inventory of materials on Horai Island?

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"Inventory,......, the old man is aware of it. I think ......."

That also means that Jin does not know the inventory.

"Hmm, you're right. I just heard. According to this, Jin, you have consumed 20 years worth of light silver, 15 years worth of iron, and 8 years worth of magi crystals in the last year and a half. In the last year and a half.

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Last night, Erza was being trained by her own mother, Meene.

She said, <>.

So Elsa had been checking the stock of materials since this morning.

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"Oh, ...... that's what it is?"

"...... level of economic collapse many times if it were a normal country."

It is allowed because of the special environment of Horai Island, where mining has continued for 1,000 years since the time of the previous generation.

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"I'm not going to say anything about it. I think almost everything was necessary.

It is not that Jin wasted money, Erza knows that.

"It's better to at least be aware of it."

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"Right. I understand. Thank you."

Yes.

"You mean the amount mined from the underground golem on Horai Island will soon be depleted if you consume like I do now. ......"

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Jin seemed to have reflected on the situation somewhat.

"Okay, after we build the submarine, let's explore the undersea resources!"

And it seems that he now has a clear idea of what he wants.

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"Okay, the design should be based on the one we discussed yesterday.

To withstand water pressure, the structure is not monocoque. The structural materials are combined, and emphasis is placed on robustness, airtightness, and watertightness.

"If we use adamantite, will it be too heavy?"

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"I think 64 light silver would be better."

Elsa has said her piece, and now she and Jin are building a submarine.

"Father, can't you also use the shell of a gigantopod?"

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Reiko's advice. The shell of the Gigantopod is weaker than adamantite, but stronger than light silver. It is also lighter than light silver.

The disadvantage is that it is less flexible in processing. It is difficult to use for columns and girders because of its thin sheet form.

Oh, there is that one. Okay, let's use that for the exterior."

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So Jin decides to use it for the exterior panels.

"The windows are 10 cm thick ....... No, let's use three layers of GS (Grand Spider) P (resin). P (resin).

The reason is that it is better to use the layers of GS (Grand Spider) P (resin) than to use the single layer in case of cracks or breaks.

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The space between the layers was to be filled with a highly transparent soft magic resin, which would also provide repairability.

Thus, the materials were decided and the construction of the submarine began.

Twenty craftsmen (smiths) and four daedalas support the construction.

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"Jin-bro ......!"

Erza again inadvertently called him "Jin-brother".

"Erza, after all, is the most pleasant to the ear.

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"......, I'm used to it."

"...... well then."

Both of them decided to go with for the time being.

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"So, what is it?"

"......Oh, yes. I recommend that you keep a record of the production process.

This advice was based on the experience of the last time we built a new ship on the shores of Lake Wass in the Shoro Kingdom.

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"Oh, I see. Can you help me out at ......, old man?"


The old man looked out for Reiko.

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"Yes, since she is closer to the scene of the crime. Reiko, can I ask you to do it?"

Reiko is not the kind of girl who would refuse Jin's request.

"Yes, I'll leave it to you!"

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Reiko accepts with pleasure. She looks happy to be of help to Jin.

"Yes, let's record it in the special Magi Crystal!

It would be faster than writing on a piece of paper and easier to record the engineering magic used. Moreover, the old man can easily make a duplicate with this.

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The cooperation of Jin, Elsa, Reiko, and Lao-kun was quite effective.

The new submarine was completed on the same day.

It is 10 meters long, about the same as <>. The overall width is 3 meters, and it seats 8 passengers.

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The silhouette is streamlined and looks more like a submarine than a submarine.

The design looks as if it could go into space, but if it floated on the sea, it would look like a novel ship.

The outer panel is made of two layers of 64 light silver and the shell of a gigantopod (gigantopod). The inner surface is coated with a soft magic resin to prevent water leakage and for emergency repairs.

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It is powered by an aqua thruster and a force field generator (force generator).

It is armed with two underwater magic cannons (Magicanon) (for torpedo type shells), ten mana bomb torpedoes (propelled by the Aqua Thruster), and an adamantite-guided underwater torpedo (propelled by the Force Generator). Force Generator propulsion) 4 torpedoes. 1 laser cannon, 1 sound cannon.

One laser cannon and one sonic cannon.

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The sonic cannon is an offensive weapon that can emit directional or ultrasonic sound waves with variable frequency ranging from audible to ultrasonic. This is an application of the magic of < used by Jin in the past.

One paralyzer, one magijammer, and one etherjammer.

2 powerful searchlights, 2 auxiliary lights. 2 pairs of golem hands (made of magi adamantite) for searching the seabed.

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For protection, a magic barrier and a solid barrier. Naturally, they are also equipped with water and wind shielding wards, and can reach supersonic speeds when the need arises.

For emergency escape, it is equipped with a warp gate.

The energy source is a magical reactor (Magi Reactor) and Aethenol for emergencies.

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Of course, a manacam (magic element communication device) is installed as a communication device, and a magi-detector and underwater sonar for exploration are also installed.

It is also equipped with an autopilot system that applies a control core.

The most difficult thing for Jin was to secure oxygen. However, he came up with a good idea.

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"Yes, we can use engineering magic to separate oxygen from carbon dioxide in the air!

This method of extracting oxygen from the emitted carbon dioxide would not raise the oxygen concentration too much and would be safe. Just to be safe, two identical units were installed so that if one unit failed, the other would be able to cover for it.

Despite all this careful work, they decided to leave the testing to Reiko.

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"Leave it to me, father!"

With a happy smile on her face, Reiko boarded the submarine and spent half a day to conduct a careful test.

As a result, a gravity-controlled magic device was added.

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This is due to the fact that the specific gravity of the entire hull, which is made of lightweight materials such as light silver and gigantopod shells, happens to be slightly less than 1.

Therefore, it floats on the water without any difficulty. On the other hand, to sink, we have to use gravity magic. This is because Jin did not come up with ballast, but it is an advantage structurally, so the result is all right.

"Ah, I guess there are things that I didn't notice when I was making it. ......"

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However, Jin, the maker, was a little depressed.

"Father, it's just a prototype. Besides, I can follow up with magic."

Reiko, who is piloting the machine, comforts him.

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Erza, who was sitting alongside Jin, was a little dour as Reiko took her lines.

So, the countermeasure was to install an additional small gravity-controlled magic device.