The current Thunder Chariot has many defects, the biggest one is that it is too small. The length of ** meters is the size of a minibus. A Titan is sitting on the back of the driver, which looks a bit heavy and light.

There are two reasons for this situation. One is the limitation of materials. The wood used in the Thunder Chariot is very special. It is very rare to grow to more than ten meters long. Only special wood above eighteen meters can be used as the keel of the chariot, and the length of ** meters can be left after cutting.

This limits the length of the chariot and cannot solve the problem of keel, so the size of the chariot cannot be improved.

The second is the control problem. Ordinary soul titans can only control chariots 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 period, Reinhardt has been working on solutions to keels and control. The control problem has been solved long ago. Just move the entire integrated differential rudder control system to the tank.

This differential rudder system is improved by reference to the rudder used by the ship and the differential principle known to Luo Heng. A rudder can solve the control of the vehicle's acceleration, steering, upward and downward, deceleration, etc., and is even more flexible than the Titans who control it themselves.

With the differential rudder system, the Titan can be eliminated.

On the contrary, the problem of keel is even more difficult. First of all, this is a material science problem. Without sufficient strength, it is impossible to make keels. Secondly, this is also a problem of processing difficulty.

Luo Heng 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 in void. Without gravity, the chariot can be built even larger.

But the 100-meter-long keel is really difficult to process. Fortunately, this is a magical world. With the assistance of 600 magicians, eighteen melting furnaces are ignited at the same time, and a large amount of iron is poured into the sand trough, and then the magicians are shaped collectively before it solidifies.

The keel production plan is very mature. The biggest problem is the insufficient strength of the material. Luo Chuan is not a graduate of metallurgy. It is already very good to know stainless steel, manganese steel, and high-carbon and low-carbon steel. It is impossible to know the specific formula. Of course, he doesn’t know what material is made of keel.

So this problem stuck Leanhart for many years and was not solved until four months ago.

Ryanhardt paved the carapace on the surface of the corpse of the Wuji Spider Mother and added it to the steel in different proportions. He combined it with existing materials such as high-carbon, medium-carbon, low-carbon steel, manganese steel, refined gold steel, mitril steel, crystal-plated steel, etc., and he actually smelted a steel that is sufficient to meet the strength of the keel.

There is also a layered pattern on the surface of this steel, like dragon scales, which was finally named dragon parasite.

Any damage in the body of the Wuji Spider Mother will activate the immune system, but the loss of this external shell will not be, and this loss will recover over time. It is very magical. The corpse is obviously dead. Why do it have the immune system and self-healing function?

Even without self-healing, the surface crust of Wuji Spider Mother is inexhaustible. Its reserves are trillions of tons, and it may even be more than all iron ore reserves in the entire plane. After all, it is the basis of the entire plane.

Can you imagine a giant beast as huge as the earth, with how many carapaces there are on its surface?

The abundant reserves and will not activate the immune system, which made Luo Zhi have its idea.

"What? Your Majesty, do you still want to add it to the armor material? Are you crazy?" After hearing Luo Ying's thoughts, Ryanhard no longer cared about Luo Ying's identity and shouted in dismay.

"Is it difficult?" Luo Qin asked inexplicably.

"We used it for three months and digged out a total of 50 kilograms of spider shell powder. Do you know how much effort did this 50 kilograms of spider shell powder take? We destroyed 600 golden bone tools and vomited blood. A large part of the spider shell powder was chewed out 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 are just enough to use a keel. The second keel, I expect it will take six months to get the spider shell powder needed, because we don't have more golden bone tools, and the undead need to rest."

Speaking of this issue, Ryanhart's bitterness continued. The carapace of the Wuji Spider Mother was too hard, harder than the level that all materials are difficult to break. The metal cut on it will not cause any damage at all.

This is also very normal. The Wuji Spider Mother is too large and does not have enough strength. Its own weight is enough to crush its body. But this is simply a nightmare for the processing of the carapace. The few that can cause damage to it are actually the invasion of the golden bone instrument and soul.

The Golden Bone Tool is a metalized weapon made of the golden skeleton. It can be a bone knife or a finger, but it only causes losses, so it needs to be washed out and grinded, so the loss of the Golden Bone Tool is much greater than that of the Carapace.

"Only the loss of the eleven kilograms of golden bone device can only grind a kilogram of spider shell powder and fifty kilograms of spider shell powder. After spending it, the twenty golden skeletons were gone." Ryanhardt spread his hands and said.

A golden skeleton weighs about 30 kilograms, which is much heavier than the skeleton of an ordinary person. Six hundred kilograms are equivalent to twenty golden skeletons. How many golden skeletons are there in the entire steel bone collar?

Of course, this loss does not mean using a golden skeleton to grind it until it is not. Instead, it asks everyone to dedicate their own bone tools. For example, Teddy devoted his own sword, and Immortal Chenguang devoted all the horse skeletons that he could not use.

But after using all these bone tools, if you do it again, you have to use the claws of the golden skeletons, otherwise you have to wait until the golden skeletons transform into new bone tools again.

The second is soul erosion, but this consumes a lot of power to the undead, and it takes a long time to rest when used.

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

"It's so difficult. Put away your unrealistic ideas as soon as possible. If you even use dragon-bacter steel, the 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." Leonhart said affirmatively.

"Then can we think of ways to increase the yield of spider shell powder?" Luo Qing asked.

Ryanhart shook his head: "I think too, but it's hard, unless we can find something harder than a spider shell, but if there is something harder than it, how can we process it?"
Chapter completed!