The prototype's performance exceeded Jin's expectations.
Although it cannot fly on its back due to its structure, it can perform somersaults with no difficulty.
Vertical ascent and descent were no problem.
For short periods of time, horizontal rolls (kirimomi flight) were also possible.
>.
<
.
Jin decides that he has obtained enough data for a prototype, and returns to the laboratory.
* * * * * * * * * * * * * * * *
"Well, the strength of the joints was a little poor for stunt work.
Jin muttered as he checked the prototype.
"But, of course, after a flight like that..."
Erza, who had followed him to the workshop, said, and Jin nodded with a wry smile.
"That's right. Blow planes are not suited for stunts.
It's even more unsuitable than trying to drift in a family car, Jin thought.
However, the possibility of such a flight is not zero. Jin reinforces the relevant areas.
"If we double the overall strength, it will be okay even if we increase the speed a little more.
"Brother Jin, what is the concept of this new aircraft?
"The <> was a private car. This is a sports car.
Jin replied in a way that was difficult to understand for those in Ars.
But it was enough for Reiko and Elsa.
"So you mean that you have in mind to fly a little longer?"
"Yes."
"But, Father. But, Father, what does that have to do with the performance of the aircraft?"
"Well, ...... I don't know what to say."
Jin wondered how to answer Reiko's question,
"The higher the speed, the shorter the reaction time to avoid danger should be. So, I think it makes sense ...... to improve the reaction speed of the aircraft."
"I see what you mean."
"At the same time, we've also improved the straight-line stability of the aircraft."
The aircraft is stable during normal flight and agile once it enters evasive maneuvers. This was Jin's goal.
"<> is a plane that can be used for transportation in and around towns, but the prototype is designed to move from town to town. The ...... construction is."
Here comes Jin's real intention.
"The first thing is that I want to build it."
".................. understand."
As an engineer, Erza understands his desire to see how far he can take the performance, so she nods her head.
"So, the fix is complete. Reiko, please do it again.
Yes, I understand.
Yes, I understand.
The prototype that Jin had modified had even better performance.
"Father, it's easier to fly!"
"Okay, let's land for a moment."
After a 15-minute test flight, the prototype comes to a brief pause.
After checking the prototype in the courtyard of the research institute and confirming that there was nothing wrong with it, he said, "Hope, I've got it,
"Hope, you try to fly it this time. Reiko, take the controls of the TAUBE Kai.
"Yes, sir."
"Yes, Father."
The two planes soared into the sky of Horai Island again.
Reiko is piloting the TAUBE Kai, and Jin and Erza are on board.
>
<
<. This one is more rudderless.
This time, Jin adopted the idea of changing the maneuverability depending on the speed and maneuvering.
In situations where the aircraft changes direction repeatedly at low speeds, the maneuverability becomes more agile, and at high speeds and long distances, the maneuverability becomes slower.
"Brother Jin, what happens when we have to avoid danger while flying long distances?"
Elsa questioned after hearing Jin's explanation.
"I think it is possible to avoid danger, since the controls are designed to change maneuverability by moving the control stick quickly."
"What if I operate it wrong?"
Elsa's question assumes that everyone makes mistakes.
"
"Hmm."
Basically, if Hope or Reiko is piloting the ship, mishandling is unlikely, but mathematically it is not zero.
Therefore, Jin and Erza want to ensure safety as much as possible.
* * * * * * * * *
After that, Jin landed the plane once, made adjustments again, and conducted another flight test.
Another landing, another adjustment.
"......Yeah, this should work."
Finally, Jin was supposed to board the plane, but Erza opposed the idea, so he boarded the plane as a "doppelganger.
Still, I could feel the comfort.
"Hmm, more than I expected."
Erza, who was also riding in the doppelganger, said that she had no complaints about it.
The prototype is no longer a prototype.
"It's not a prototype anymore."
After taking the machine to the workshop and servicing it, Jin was thinking of giving it a name.
"Hmm, what about a name?"
"At first I was thinking of ."
That was fine when it had two circular wings on each side, but this plane has circular wings in front and behind as well, albeit smaller.
"Four ...... crosses ......<>"
The Southern Cross, or the Southern Cross. It is a well-known constellation in the southern hemisphere of the earth. It can be seen south of the Tropic of Cancer.
The four stars are conspicuous, so named because they form a cross when joined together.
It is a marker to locate the south pole of the sky.
It is also famous among celestial enthusiasts for the presence of the Dark Nebula <> in the lower left corner.
Jin has only seen it in photographs, but <>.
There is also a constellation called <>, which is another name for the Cygnus constellation.
Anyway, Jin decided to name his new <> <> because he liked the word.