The setting up of the origins of Jin and deus ex machina is now complete.

"Yes, they are. Is something wrong?"

<

"I see that too. ...... but it's also possible that they are distant relatives."

It is also possible that there are two separate families, each with only one Jin and one Makina left.

"They may be distant relatives, but they are not brothers. ...... Let's go with this."

.

In fact, it is unlikely that the origins will be pursued that far, but it is always a good idea to have a good idea of what to expect.

"Finally, let's say that Makina is 10 years older than me.

It would be too deliberate to use the same age.

.

** ** "Now, let's have a look.

"Well, now that I have some time, I'll check out before going to Franz's kingdom.

In <<>, research and development of small aircraft was underway.

Erza was also a little concerned about Najas Khan, a she had met in Franz's kingdom.

Elsa was working on something in her workshop.

"Hey, Elsa ......, what are you doing?"

"Oh, Jin. Oh, Jin-bro... spring clothes. I just finished it."

They were Jin's clothes.

"Clothes are a little different from 400 years ago. I made a modern jacket."

Thank you.

First, the color.

Colors are a little brighter than 400 years ago. This is the same for both men and women.

Black is the basic color for formal occasions, but by adding a dusky red or blue in one spot, it adds a subtle touch of glamour.

Design.

Loose-fitting clothes were favored 400 years ago, but nowadays, close-fitting clothes are in fashion.

If the clothes were poorly tailored, they would be difficult to move in, and the tailor's skill would be evident.

But...

"Oh, it's just right and I can move around easily. "Thank you, Elsa."

"You're welcome. ...... I think the stretchy fabric worked out well."

"Stretch material?"

Jin feels that the elbows and shoulders are indeed easier to move.

"Yes. <

"That's amazing. How did you make it stretchy without knitting it with a merry crochet ......?"

"I twisted the strands a lot."

GST has the ultimate tensile strength. Twist it 20 times more than usual, and you get an ultra-fine spring-like thread.

Right- and left-twisted yarns are prepared (the difference is the direction of rotation during twisting: right or left).

When these are further twisted together into yarn, a yarn with 40 to 50 percent more stretch is produced.

"If the twist is about 10 times higher, the stretch is about 20 percent.

"I see, so twist is the key.

"I see. So twist is the point. So, I made this from a cloth woven with such a yarn.

Jin thought, "Then it makes sense that it's snug but easy to move around in,

"That's great, Elsa."

"That's great, Elsa," he said admiringly.

"Well, actually, it was Hannah who gave me the idea.

"Oh, really?"

Jin was impressed with Hannah.

"So, what did you want to talk to me about?"

Elsa spoke to him, and Jin came back to himself.

"Oh, yes. I'm thinking of going to Avalon sometime soon, and I was wondering if you'd like to go with me.

"Sure, I'll go."

His answer was immediate.

"I'm sure you will. You're interested in Najas, aren't you?"

At Jin's question, Elsa nodded.

"Yes. And I'm also concerned about the curriculum at right now."

"I see.

Jin said, "Then, I think it would be better to prepare some of that kind of information for you.

"Yes, I will. ...... old man, you know what I mean?"

The structure of the human body is essential for basic knowledge of healing.

Where are the organs located, what functions do they perform, where are the muscles attached to the skeleton, and what kind of movement do they control?

How do the joints fit together?

Where do the large blood vessels run?

You can find out all this at .......

Knowing this and using healing magic will maximize the effect.

With the help of the old man, Elsa decided to make such reference materials.

* * * * * *

What about me?

The purpose of this project is to find a .

The two that Hitoshi owns now and can be made public are the <> and <>, but the latter is still at the prototype level, and he does not want to make it public.

"So, the <..."

The same model has been donated to the Nordic Federation, so it is the safest choice.

The shape is that of an upturned pot lid. It has circular wings with a fuselage and vertical wings attached under the wings.

"I didn't have enough time at that time, so I could only do the < version."

Jin wanted to keep the circular wings and increase mobility.

"Then, the fuselage should be revised.

The fuselage is, in theory, a single plate.

Therefore, the fuselage is useful for improving straight-line stability, but it is a factor that reduces the turning ability.

"Then, what should we do ......?"

After much thought, Jin came up with the conclusion that the fuselage should be bent in response to changes in direction.

To be precise, the rear part of the fuselage is not fixed to the circular wing but serves as a rudder.

Jin thought that the change of direction would be smoother since almost half of the fuselage would be in operation.

Of course, the straight-line stability of the boat would remain unchanged since the boat would continue to move in a straight line.

First, it was important to ensure the strength of the variable fuselage.

"The structure is a combination of truss and honeycomb. ...... Reiko, hold this side."

Yes, Father.

With Reiko as his assistant, Jin assembles the new "blowplane" based on the "Taube Kai".

It took about 2 hours.

The < was completed that day.

But it was already dark, so the test flight was postponed until the next day.