While Xu Ping and Guo Zi were lying around the car, Wang Kai, Han Qi and others couldn't wait for Xu Ping, so they found them together. Seeing these two new things, they gathered around and watched them together.

Turning back and seeing Tan Hu, Xu Ping said, "Tan Hu, take three guards and come to the car together, find a horse to pull it to the open space outside to try it. Remember to lie alone in the car, pretend to be a patient, and see how you run."

Tan Hu responded, clicked three guards casually, and happily surrounded the car.

Guo Zi hurriedly stopped him and said, "Wait, I haven't finished the benefits of this car yet, wait a moment. Just look at it. Although the car now looks similar to before, there are actually a lot fewer small pieces, and the number of small pieces is only more than 60% before. In this way, it will not be as easy as before, and it will be easy to repair if it is broken."

Reducing the number of parts and strengthening the strength of key components can improve the reliability of the car. Xu Ping nodded repeatedly after hearing this.

Guo Zi said again: "Not just that. After the car was made, I tried it in Fengxiang Mansion countless times. It was easy to break, no matter where it was not easy to break, and never broke, I remembered it one by one. Each small piece has a size and a mold, so that every car is the same, and all the small pieces brought with it can be repaired. Even when it was necessary, two or even several cars could be put into one car. No matter how thorough the thinking was made, it was inevitable that the broken one was inevitable. The key was that it was easy to repair it. If the car was broken, it could only be thrown there and wasted in vain."

Xu Ping nodded repeatedly after hearing this: "Zhongmou, what you said is the right key. Where can things you use every day never be broken? It's hard and durable, just do your best, and you can't force it. The key is that it's easy to repair after it is broken. It's the most important thing to be universal in every car. You're doing this well, it's excellent!"

Massive products, modularity and universalization are the right way. Where can cars be broken, especially on grasslands and deserts without roads. Bad is not terrible. The key is that they must be easy to repair. It is best to predict where the good or bad is in advance, and bring enough spare parts in advance, and repair them at any time. In this way, you cannot force each small piece to be strong, but you must deliberately make small pieces that are easy to replace, repair and carry into a weak link. The bad thing is broken in the design, just like the insurance pins and fuses in the electrical appliances in Xu Ping's previous life. The bad thing is broken here and it can be replaced in time. Universality is equally important. The parts of each car are universal, which not only reduces the burden of carrying spare parts, but also makes several bad cars one. The car's problems only reduce the ability to transport power, rather than paralyzing the transportation capacity.

Guo Zi is indeed talented in these things. Born in later generations, he must be a great scientist and an excellent engineer.

Obviously Guo Zi was very proud of the car and said to Tan Hu: "Tixia, come on, you can sit here!"

Tan Hu smiled and walked to the front of the car. As Guo Zi said, he jumped above the wheel. Now the wheels have become larger, the frame is made of arches, and the two ends have hanged down. The wheels have become the highest place in the car. If Tan Hu had not been agile, he would have really not been able to sit on it. As Tan Hu sat on the car, it was obvious that the entire frame had sunk.

Guo Zi bent down and pointed to a stack of bamboo slices above the wheel and said, "Look, I added bamboo slices here, they are thick in the middle and thin on both sides, and they are roasted with fire and will never rot. In this way, the car will not be so bumpy when it is running!"

"Very good! Very good!" This is the leaf spring. Xu Ping's low-end vehicles in his previous life, especially trucks and tractors, were very common. Of course, trucks weigh dozens of tons, and the leaf springs are made of high elastic steel. This large truck weighs only one ton. It is enough to use refined bamboo sheets instead of steel. Although it is not as durable as steel, it can be replaced with frequent replacement.

Xu Ping had mentioned to Guo Zi before using leaf spring shock absorption, but Guo Zi spent a lot of effort to find the right materials, make the required shapes, and perform necessary treatments. How big bamboo in Qinlong area is? It is widely used for bamboo to make the materials, strong toughness, easy to prepare and easy to replace, which is indeed very suitable. Forcibly using steel is wrong.

There are many forms of shock absorption in vehicles, and few use compression springs, and other forms are mostly used. Of course, high-end, atmospheric and high-end compressed air cannot be used in this era, but leaf springs, connecting rod torsion frames, etc. can be borrowed. However, the material is not as good as special steel, and the performance is of course not as good as that of the use, but the requirements for use are much lower, so it is better to use it.

The bamboo leaf spring used by Guo Zi is to take the best tough part of the bamboo sheet, cut it into a thin and thick shape on both sides, and then press it tightly together and put it together at the connection between the wheel axle and the frame. This bamboo leaf spring was actually useful in Xu Ping's previous life. It was used on low-end freight vehicles such as livestock cars, simple tricycles and tractor trucks. The bamboo leaf spring is cheap and sufficient. Although it is far less durable than steel, the replacement cost is much cheaper.

In addition to bamboo leaf springs, bamboo torsion springs can actually be used, but Xu Ping does not have the energy to test them one by one, and does not know what their advantages and disadvantages have. Bamboo leaf springs and bamboo torsion springs are deformed greatly when subjected to force, and the speed of restoring shape after force removal is slow. It is not suitable for weapons such as crossbows and stone catapults, but it is still very useful in some shock-absorbing occasions.

Sitting in the car, Tan Hu was in a whim, and the frame was undulating with him. The people around him looked at him and laughed. Perhaps in the eyes of Han Qi and others who had no personal experience of war, this is a very fun novel thing, quite interesting, but for those who have experienced several wars such as Wang Kai, this car is of great significance.

Grasslands and deserts of course also include vast plains. Mobility is related to life and death for an army. One step earlier or one step later is often a difference between victory and defeat, and a difference between life and death. In this regard, the Han people are indeed not as good as nomadic peoples. In the Caoyuan desert, the Han people also need water and food they are used to, and cannot maintain their lives in harsh environments like herders. There is no way. The difference caused by the long-term living habits cannot be changed in a short period of time. You cannot ask the Han army to become like herders. It is unrealistic to do that, and it is like a hunter who goes out to hunt, and there is no need to live like prey. What can be done is to make the army have stronger mobility than the nomadic army, and can carry as much supplies as possible when maneuvering quickly. At this time, this big cart with good off-road performance shows great advantages.

Dangxiang's cavalry's mobility is not fast. Their material transportation mainly depends on camels, and the maneuverability speed depends on the speed of camels. Xu Ping just needs to let his cavalry brigade run through the camels, which will be enough to drag down Dangxiang's army.

The horse pulled a large cart, even if it was a normal marching for sixty or seventy miles a day and night, and being able to march continuously for ten days and half a month was a terrible mobility. Xu Ping's five field legions could control a range of hundreds of miles. If he advanced together, the entire front line would be covered. At that time, Yuan Hao would no longer have the opportunity to ambush the Song army with five times and six times of the force at any time. When facing the battle head-on, Dangxiang had not shown his ability to be stronger than the Song army.

Tan Hu came down and Xu Ping said, "You take a few soldiers and run around as Guo Cao said. If the car is still fine, you can build dozens of cars and pull them to Yuzhong in the north, and run around the valley for ten days to see!"

Tan Hu Yingnuo, with three good guards, let one of them pretend to be a patient and lie on it, whistling toward the camp gate.

Xu Ping watched the few people leave and said to Guo Zi: "I don't have high requirements. As long as this kind of big car can travel for ten days and ten nights in the grassland and desert continuously, run 500 miles without major damage, such as if it can still make half of the car in the end, it will be enough! It is of course better to use, but now, if you do this, you will not delay fighting against the thieves, just enough."
Chapter completed!