The current Thunder Chariot has many defects, the biggest of which is that it is too small, eight or nine meters in length, just like the size of a minibus, and a Titan sits in the driver's seat in the back, which seems a bit heavy.

There are two reasons for this situation, one is the limitation of materials, the wood used in the Thunder Chariot itself is very special, very few grow to more than ten meters long, and only the special wood of more than 18 meters can be used as the keel of the chariot, and the length of eight or nine meters can be left after cutting.

This also limits the length of the chariot, and if the keel problem cannot be solved, the size of the chariot cannot be increased.

The second is the problem of control, ordinary Divine Soul Titans can only control a chariot of this length, the larger the size, the more difficult it is to control, if the length of the chariot is enlarged to thirty meters, it is estimated that only the Titan God King can control it.

During this time, Reinhardt was working on a solution for the keel and handling, and the handling problem had already been solved, as long as the entire integrated differential rudder control system was moved to the vehicle.

This differential rudder system is based on the rudder used by the ship, and the principle of the differential that Luo Qiu knows, and a rudder can solve the vehicle acceleration, steering, floating and descending, deceleration and other controls, even more flexible than the Titans themselves.

With a differential rudder system, the Titans can be eliminated.

On the contrary, the problem of keel is more difficult, first of all, this is a problem of material science, without sufficient strength of materials, there is no way to make keel. Secondly, it is also a question of processing difficulty.

Luo Qiu hopes that the next chariot can reach a length of 100 meters, because the plane can no longer accommodate him, and his journey will be the void, the void without gravity, and the chariot can be built even bigger.

But the 100-meter-long keel is too difficult to process, but fortunately, this is a world of magic, with the assistance of 600 magicians, eighteen furnaces are ignited at the same time, and a large amount of molten iron is poured into the sand tank, and then shaped by the magicians before it solidifies.

The production scheme of the keel is very mature, the biggest problem is the lack of strength of the material, Luo Qiu is not a metallurgical graduate, he can know stainless steel, manganese steel, high-carbon low-carbon steel is already very good, it is impossible to know the specific formula, of course I don't know what material the keel is made of.

So the problem stuck with Reinhardt for many years, and it wasn't solved until four months ago.

Reinhardt shaved the carapace of the carapace of the Mother Spider's corpse and added it to steel in different proportions, combining it with high-carbon, medium-carbon, low-carbon steel, manganese steel, pure gold steel, mythril steel, crystal-plated steel, and other existing materials, and he smelted a steel that was strong enough for the keel.

There is also a layered, dragon-like pattern on the surface of this steel, which he finally named dragon pattern steel.

Any damage in the mother body of the Infinite Spider will activate the immune system, but the loss of this appearance of the carapace will not, and this loss will recover over time, which is very magical, the corpse is obviously dead, why is there an immune system and self-repair function?

Even if it doesn't repair itself, the surface carapace of the Mother Infinite Spider is inexhaustible, and its reserves are in the trillions of tons, and it may even be more than all the iron ore reserves of the entire plane, after all, it is the foundation of the entire plane.

Can you imagine how many carapaces a giant beast as large as the Earth has?

The abundant reserves, and the fact that they do not activate the immune system, made Luo Qiu hit the nail on the head.

"What? Your Majesty, you still want to add it to the materials of the armor? Are you crazy?" After hearing Luo Qiu's thoughts, Reinhardt could no longer care about Luo Qiu's identity, and shouted in a lost voice.

"Is it difficult?" Luo Qiu asked inexplicably.

"It took us three months, and we shaved out a total of 50 kilograms of spider shell powder, do you know how much effort it took us to do this 50 kilograms of spider shell powder? We have destroyed 600 golden bone vessels, and we have vomited blood from 500 undead, and a large part of the spider shell powder has been gnawed by the undead with soul erosion. ”

"Fortunately, the proportion of keels that need to be added is not very large, but despite this, fifty kilograms is just enough for one keel, and the second keel, I expect it will take six months to get the cobach powder we need, because we don't have any more golden bone tools, and the undead need to rest. ”

Speaking of this question, Reinhardt's bitter water is endless, the carapace of the Mother Infinite Spider is too hard, so hard that all materials today are difficult to break, and the metal can't cause any damage when cut into it.

This is also very normal, the size of the Infinite Spider Mother is too large and does not have enough strength, and its own weight is enough to crush its body. But this is a nightmare for the processing of the carapace, and the few things that can cause wear and tear on it are the golden bone artifacts and soul invasion.

The golden bone weapon is the weapon that the golden skeleton is metalized, which can be a bone knife or a finger, but it is only a loss, so it needs to be planed and sharpened, so that the loss of the gold bone tool is far greater than the carapace.

"The loss of eleven kilograms of golden bone artifacts can grind one kilogram of spider shell powder, fifty pounds of spider shell powder, and almost six hundred kilograms of golden bone artifacts have been put in, and when converted, twenty golden skeletons are gone. Reinhardt said.

The weight of a golden skeleton is about thirty kilograms, which is much heavier than the skeleton of ordinary people, and six hundred kilograms is equivalent to twenty golden skeletons.

Of course, this kind of wear and tear does not mean that a golden skeleton is taken and grinded. Instead, everyone was asked to dedicate their own bone weapons, such as Teddy who donated his war knife, and Immortal Chenguang who donated all the horse skeletons that he couldn't use.

But once these bones are all gone, you will have to use the claws of the golden skeletons if you do it again, otherwise you will have to wait for the golden skeletons to transform into new bone tools again.

The second is soul erosion, but this is a very large loss of power to the undead, and you have to rest for a long time with one time.

After listening to Reinhardt's description, Luo Qiu also had a headache: "Is it so difficult?"

"It's so difficult, put away your unrealistic idea as soon as possible, if even the armor has to use dragon steel, then a chariot will have to invest more than 600 kilograms of spider shell powder, and the resources consumed will be more than ten times that of the keel. Reinhardt affirmed.

"Then can we think of a way to increase the production of spider shell powder?" Luo Qiu asked.

Reinhardt shook his head: "I want to too, but it's difficult, unless we can find something harder than a spider's shell, but if there's something harder than it, how can we process it?"

"We can try to attack the shield with the spear of the son. Luo Qiu proposed.

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