Chapter 67: – To the High Elf Kingdom (2/2)

After I made the wash toilet for my house, the interested Meiya gave the blueprint to the craftsmen and had them replace all the toilets in her house with wash toilets.

At that time I asked her for some spares too.

So that I could replace mine immediately if it were to break.

The ones we were bringing onto the aircraft were also a part of that.

One spare for when the one already installed on the aircraft broke.

One for the place where we would stay in High Elf kingdom.

The last one was spare for the one above.

Each and every one of them was necessary.

Leaving the toilets behind, really, what exactly was that man thinking.

Meiya seemed to understand too, as she scolded the man.

“That is necessary! Leaving that behind is outrageous! Move that right now, and carefully, pay more attention to the safety!”

“U-understood!”

The man was yelled at by Meiya, then he called his subordinates to carry the wash toilets onto the aircraft.

As expected of someone who called herself my first disciple.

……Well, if she were to say something like leaving the wash toilets behind maybe I’d excommunicate her immediately.

While thinking that, I called out to Meiya.

“Good work, Meiya.”

“Well if it isn’t Lute-sama! You even took the trouble to come to this dusty place to see me! I am extremely moved!”

“How’s the progress ?”

“I am preparing so we can leave the day after tomorrow. Anyway, why do you have to take the magic liquid metal with us ? I think it’s also available in High Elf kingdom”

“We will be staying on the aircraft for one month right ? So I thought I should use that time to develop a new weapon.”

“Ah, a new weapon !?“

When Meiya heard about a new weapon, stardust seemed to sparkle in her eyes.

“W-what kind of thing will it be !?”

“During our last quest our fire powers were lacking, so I’m thinking of developing a weapon to supplement that. That weapon’s name is: Panzerfaust.”

In 1942, during WW2, the German army developed a ground-breaking disposable recoilless high explosive anti-tank warhead launcher. That was the [Panzerfaust] — it means [Tank fist] in German.

A thin long iron pipe attached with the warhead which looked like two cups stuck together at the lips. Its full silhouette was a shape like a horsetail.

The German army used the Panzerfaust in a sense like hand grenades against the USSR’s tanks to destroy the tracks, damage the engine, … to immobilize it.

Furthermore the launched warhead’s recoil was so little even a girl could handle it easily.

Also, the type I was thinking to make this time was [Panzerfaust 60] type.

The first Panzerfaust that was made was [Panzerfaust klein].

Second one was [Panzerfaust 30].

Third one was [Panzerfaust 60].

The reason I didn’t choose to make [Panzerfaust klein], [Panzerfaust 30] was that the firing mechanism was too simple, like pachinko, which caused a lot of accidents.

Thinking about safety, destructive power (compared to klein, type 30 and on had about 4 times the amount of explosives), the answer was only Panzerfaust 60.

The thing you should notice about this Panzerfaust was that the warhead used was either [shaped charge warhead] or [chemical energy bullet].

[Shaped charge warhead], or [chemical energy bullet] is explosive charge shaped with a hollowed inverse cone, the cavity was covered with a metal sheet (liner).

With the utilization of explosives …… chemical energy, armor which the bullet body couldn’t destroy before, now could be destroyed.

As a result, [shaped charge warhead], or [chemical energy bullet] was the natural enemy of allarmoured weapons, soldiers.

And generally the [shaped charge warhead], or [chemical energy bullet] was misunderstood that it destroy armor due to the Munroe effect, but that was a mistake.

In the 1880s an American technician, Munroe discovered that instead of placing explosives directly to a flat iron plate, explosives with their surface caved inward could open a hole deeper in the iron plates.

That was the [Munroe effect].

In the 1920s a German scientist, Neumann discovered that lining the cavity of the explosives with a metal sheet could penetrate much more.

It was called the [Neumann effect].

By utilizing the [Neumann effect], [shaped charge warhead], or [chemical energy bullet] could penetrate armor that conventional bullets couldn’t.

Well then, how does this [Neumann effect] penetrate armor ?

When the warhead’s explosives explode, obeying physics, the explosion’s energy would focus on the least resistant part which was the cavity (If there was no cavity in the explosives, the energy would be transmitted equally, like how light focuses due to a positive lens, from the surroundings, the energy would be focused into the center point of the cavity. From the actual explosion the focused energy was thought to be about 20%).

Until then it was the Munroe effect.

Due to the explosion energy’s focusing, the metal sheet (liner) lined up inside the cavity (usually soft copper was used) would be evaporated (strictly speaking, it wasn’t evaporated, but only turned into a liquid like state. Not by heat, but by pressure).

An evaporated jet blast of metal molecules, together with high-temp high-pressure gas would punch a hole into the hard armor plate.

Now that would be Neumann effect.

In short, the [Munroe effect] would focus the explosive energy, the [Neumann effect] would turn the metal liner into a jet blast of metal molecules and destroy the armor.

While omitting the part I couldn’t tell, I explained the Panzerfaust to Meiya.

When she was done listening, she was on both of her knees, tears streaming down her big eyes.

“What a marvelous story! I am the most fortunate person in this world! Like this, I get to hear directly from god–no, Lute-sama has exceeded even god! Lute-sama is already a living god desuwa!”

“Stop it, Meiya! There are people looking! Don’t kneel, and don’t you kiss my feet again!”

I used force to stop Meiya who was about to kiss my feet, and forcefully made her stand up.

I was happy that she idolized me, but I got the feeling that recently the frequency of her actions were turning from “sometimes” to “rampaging”.

“A-anyway, with that in mind, I intended to devote myself into creating the Panzerfaust while we’re moving, just so you know.”

“I understand! This Meiya Dragoon! Will be helping Lute-sama!”

“I, I’m counting on you”

She took my hand, leaned her face closer like she was about to kiss and agreed.

Her heavy breathing and dazzlingly shining eyes are scary.

Like this, we prepared to head off to the High Elf kingdom, Enol.

＜Chapter 4        END＞

Next time