Renaud nodded, he could understand Ferrier's excitement, he was also a professional blacksmith, he had participated in the production of the "Ballista Cannon", which was very close to the working principle of the mortar shell. Pen ~ fun ~ pavilion www.biquge.info

"How many days can it be made?"

"The barrel is fast, and with Miss Vivi's help, you can get an idea in a few hours. "It's just that the shell is a little more troublesome, and I haven't thought of what to use for its shell." ”

This point Renault has just spent a thousand times, aluminum, ceramics, and steel, and the most suitable for Renault's current production level is nodular cast iron.

In layman's terms, it's hard enough, wear-resistant, heat-resistant, and brittle enough to produce enough shrapnel after an explosion.

The key thing is that it is relatively easy to produce.

Based on Renault's drawings, Ferre quickly made a model out of wood, and soon the three shells were cast, and Ferry personally built the tail fin, firing device and other accessories, and finally Vivi fused them into one.

Loading gunpowder was a very serious problem, for which Renault made a simple balance and made a set of precise weights, and recorded in detail the amount of three mortar shells.

Early in the morning of the third day, led by Renault, a group of people left Black Iron Town in high spirits and came to a remote clearing.

In order to regulate the use of mortars, for the first time Renault developed strict operating procedures.

He asked the accompanying Badge to give the order, and his long and solemn voice was still long, solemn: "Adjust the angle of shooting, 45 degrees!"

The one in charge of the operation is Miley, and when Lauren is no longer there, no one dares to rob her of this kind of exciting thing.

"Test No. 1, Loading Ready!"

Miley took out the shell marked "1" and placed it on the barrel mouth.

"Launch!"

With Baggy's order, Miley's hands loosened, and the shell slid down the barrel to the bottom, and the firing pin at the tail of the shell ignited and pushed the gunpowder, making a muffled sound of "bang-", a puff of black smoke was released from the barrel, and the shell flew away in the distance in a 4 parabola.

Boom -

The shell landed in the distance and exploded, sending up a puff of black smoke.

"Measure the distance!"

This shell Renault did not expect much, it pushed the least amount of gunpowder.

Sure enough, the measurement results came out, and it was only more than 300 meters away.

After the barrel was cool enough, Bucky began to give orders again: "Test No. 2, reload ready, fire!"

This time the distance was much farther, at least above 1000 meters, and the shells flew in the air for a long time before they landed.

Experiments No. 3 and No. 2 were loaded with the same push gunpowder, but the amount of gunpowder used for the explosion was different.

After the test of the three shells, the diameter of the three craters was about one meter, and Miley was a little disappointed: "Such a small crater is not as powerful as the Ballista Cannon." ”

"It can't be counted that way. "The ballista cannon is filled with nitroglycerin, and ordinary black powder can't be compared with it at all," the most powerful thing about this kind of shell is that it relies on shrapnel to hurt people. ”

Miley seemed to be incomprehensible and asked people to look everywhere, and the test No. 3, which exploded the most gunpowder, had the farthest steel ball that had flown fifty meters away.

This result is still good, if the opponent is an enemy wearing armor, it will have a certain amount of effective lethality within a radius of at least twenty meters.

It's just that the lateral distance between the craters of No. 2 and No. 3 has reached nearly 100 meters, which is a bit of a big error.

They use the same amount of push charge, the same gun, and even in order to get more effective data, the overall weight of both shells is the same.

It seems that it is still the reason for the work.

If you don't adjust this well, then this cannon can only be fired with your eyes closed, and the damage is good, and it will hit a large area, or it may not hit at all, and it will be crooked to a hundred meters away.

Although they were cast in the same mold, the shell shells not only had slight differences in shape, but also had a very rough appearance, and even the tail fins were slightly off.

The various errors add up to the current result.

It seems that both the shell shell and the tail must be machined with high precision, and the dimensional error must be strictly controlled, and the preparation of gunpowder must also be refined.

Renault told Badge and Ferret about this, and told them to work on it as soon as they got back. Now with high-precision lathes, none of this is difficult.

In just two days, ten brand-new barrels and nearly a hundred shells were processed.

......

At the same time, the forty-day deadline was approaching, and the transformation of the escort was nearing completion, and the five men were tightly surrounded by a sturdy black shell.

With the experience of the last time, Renault directly asked people to knock their heads open.

"Hey, it's dawn. ”

The first escort to be "opened" showed a pitch-black face and white teeth, and he was indeed as dark as the black whirlwind, but it was obvious that he was very excited, and the other four were quickly "opened", and they were all as fresh as ever.

"Lord Renault, it all worked. ”

Charlotte didn't have any expression, this was already the result of her countless calculations, and there would be accidents without arrangement, but the success rate was extremely high.

The next step was to test their modified capabilities, and Renault decided to test them a second time with the mortar.

Returning to the clearing, Renault tested their skins first, and he had one of the guards use a sharp sword to chop the arm of the modified soldier.

"Brother, you have to be light, I don't know the bottom of my heart. The Reformed Guardian who was being tested joked.

"Don't worry, I'll be gentle first, and I'll work hard if your hand doesn't fall off. ”

As soon as he said that, he closed his eyes and slashed down, only to hear a shout from the transformation soldier, and his dark skin suddenly tightened, and he flicked the long sword back hard.

Renault went up to inspect his arm and found no damage except for a shallow mark.

"Does it hurt?"

The reformed soldier nodded, shook his head again, and said, "It's not very painful, it's like being beaten with a whip, and I can bear it." ”

"Okay, go ahead. ”

The transformation soldier suddenly broke into a cold sweat, although he knew in his heart that he would probably not be injured, but he always felt hairy in his heart when he watched the sharp long sword slash his arm.

"Ahh

The guards with the long swords almost used their strength to suck up this time.

Hum -

The sword was bounced back again, nearly shaving off his own scalp.

"Bastard, it's not that it's better to work harder a little bit, how can you be so ruthless. ”

The reformed soldier grinned in pain, and the skin of his arm was cut through a shallow opening, and the wound quickly swollen slightly, but it didn't bleed.

The toughness and strength of the skin are similar to those of normal armor, except that it still hurts. But on an ordinary battlefield, the burden of armor is less, and the soldier will become much more flexible, as long as he is not directly hit by a large weapon, the probability of injury and death is extremely small.

Then Renault briefly tested their arm strength, which was almost three times that of the average person. This made Renault very satisfied, knowing that the No. 1 demon spirit, brute force, was only like this when he first awakened.

Next is speed.

Renault tested their 100m, 1,000 and 5,000 run times, and the results surprised him.

100 meters is 7 seconds slower, 1,000 meters is 1 minute and 10 seconds, and 5,000 meters is 6 minutes!

Renault checked the world records of these three items, and the 100-meter meter was almost 10 seconds, the kilometer was more than 2 minutes and 11 seconds, and the 5-kilometer meter was more than 12 minutes.