The train's brakes are a tough thing to do.

It's too heavy, too inertia, and can't stop as hard as a car.

The technician found that there was a drawback to the brakes, but there was no way to solve this drawback. Li Zhen also knows that holding the wheels to brake can only be moderate, but not perfect. But he didn't have a better way to deal with it.

There is only one option, locking the wheels.

"Master Li, do you want to redesign the wheel?"

"No, I don't."

"I think the wheels should have more friction, the friction between the steel wheels and the rails is too small. After locking the wheels, it even drove forward. Does this mean that when the train reaches 80 miles, the braking is even several kilometers in advance? ”

Li Zhen hesitated: "If nothing else, that's it." ”

"What about an emergency? What to do if someone suddenly breaks into a train track? ”

Li Zhen said: "Actually, you all ignore a problem. The brakes of the train should not be done by the front of the train, but by a string of carriages hanging behind the train. The braking effect of the front of the car is not good, so all the cabins and hundreds of steel wheels are all locked brakes? You are wrong about this concept, always think that the brakes of the train depend on the locomotive, which is unscientific, how can a locomotive resist such a strong inertial force? ”

Everyone suddenly realized.

"Oh, I see. ：”

"Well, then, if all twenty carriages are locked to the wheels. That is, nearly a hundred wheels are all locked. In this case, the friction will increase exponentially. ”

"But is there any other way?"

Li Zhen shook his head: "No." ”

"But what if there's an emergency? Can you only bumble into it with your eyes open? If the train hits something, it is too dangerous, the front of the locomotive is the first to hit, and the inertia of the dozens of cars behind is amazing? If all the power rushes to the front of the car, the people in the front of the car will definitely not survive. If you don't know if the train is going to derail. ”

Li Zhen drew a few lines on the railway map: "Therefore, the railroad tracks must not be exposed in the open air. Wire mesh should be pulled up on both sides of the rails to prevent wildlife and residents from breaking in. Booths are to be set up at intervals, and the rails are checked regularly to drive away nearby beasts. The steel wire mesh must be pulled up, and it must be strictly guarded. ”

"Also, some of the train tracks are going to pass through residential areas. Then there should be checkpoints at the intersection, and the train will be closed to traffic when it comes. Solve the problem of train braking in a sideways way. Only in this way is the best solution. There is no more perfect idea for the braking of trains. ”

“……”

After Li Zhen finished speaking, he looked at the locomotive that was damaged by a trailer in the distance: "The power is still a little weak." Let's produce the regular front of the car first, and then test it again after hanging the car. The rails are fine, the principle is fine. When the finished product is produced in the factory, we will find a way to solve other problems. ”

"Yes, Master Li."

Li Zhen boarded the car with a smile: "Let's go, go to the airport, today is also the day to test Peng's style." ”

"Master Li, Jiang General Administration will be here soon, and he will also watch the Peng-style test flight."

"Who is General Jiang?"

"Jiang Tianqi, the former son of Beizhou Jiang Tianqi. Now Jiang Tianqi is the general officer of the new Kyushu Transportation Administration. It is deeply valued by Du Taiping. ”

Li Zhenyi raised his eyebrows and remembered this guy.

I once met with myself, and let the 10,000-year-old consortium in my hands earn several tons of gold. Later, he was placed under house arrest in Quancheng County. I didn't expect to become a big member of the party now.

Smiled and got into the car: "Okay, wait for him." Look at what old acquaintances look like now. ”

"Let's go, let's go."

“……”

'Dididi'

The head car honked.

A convoy of more than a dozen vehicles of the Kyushu Academy of Sciences evacuated from the Dafengtai Railway Station and headed for the airport in Dafengtai.

The crowd did not disperse, and after watching the train experiment, many people also went to watch Peng's takeoff.

Everyone is curious about the legendary large aircraft. If Pengshi succeeds, I am afraid that a new era will be created.

An era that has brought the world closer together. From now on, there will be three kinds of transportation - land, sea and air.

"This train is purely a chicken rib, I heard that there are serious problems with the brakes, it can't be braked, and the brakes are all about collisions."

"Forget the train, let's go see the plane. The highlight is Peng. ”

"I heard that this Peng-style future is to sail thousands of miles. to greet the Son of Heaven of all countries. Let's take a look. ”

"It is said that Peng style can sit thirty or forty people. And it is more stable than the Grasshopper, with twin engines. ”

"If you don't understand, don't talk nonsense, Peng Shi is a variant of the Grasshopper. The scientific name is a transport aircraft. ”

"Wouldn't it be nice if we had airports everywhere in New Kyushu? Peng-style is all over the sky, and the new Kyushu is completely developed, and you don't need to take a few weeks to go anywhere, and you will arrive in a while on the plane. ”

“……”

Come to the airport. It's already crowded here.

The Kyushu Academy of Sciences naturally has its own pergola, which is simple, but it is heavily guarded. It's full of important people, and it's also the place with the best view.

When Li Zhen arrived, the Peng plane had already been transported, and it was wrapped in a huge canvas at this time. Just wait for Li Zhen's order to start taking off at any time.

"Master Li, do you want to start the hot engine now?"

Li Zhen looked at his watch, it was already three o'clock in the afternoon, and the sky was high and the clouds were faint at this time, when the vision was the best. There is no glare at noon, and there is no heavy cloud in the afternoon.

"Wait."

Looking back, Li Zhen said again: "Send a telegram to ask, see where the General Administration of Jiang is?" ”

Liu Jinghong shrugged his shoulders, his expression was a little disdainful: "Master Li, why bother waiting for such a small role." Why should the Kyushu Academy of Sciences care about the Kyushu Party? There is no need to wait for him, he has lowered his status. Let's just test fly ours. ”

Li Zhen smiled: "Wait." ”

"Why wait?"

"Pengshi is just developed, and the government has the final say on whether it is produced or not."

"It's the Kyushu Academy of Sciences that has the final say."

Li Zhen frowned: "The Kyushu Academy of Sciences doesn't have the energy to mass production, shouldn't the Aviation Academy focus on development?" Designing airplanes is art, and you always think about how it is to stand still on the same work? ”

Liu Jinghong opened his mouth, speechless. After a moment, he sneered, "That's right." ”

The people around him were also silent, although Li Zhen's tone was flat, but everyone felt that Li Shi was angry.

Why are you angry?

It is to get angry with the idea that the aviation institute has stood still.

Or is he angry because of Liu Jinghong's dismissive attitude towards the government?

Neither.

Li Zhen is just angry about this mentality that is now common in the Kyushu Academy of Sciences.

They didn't feel it themselves, but Li Zhen felt it exactly. Most of these people are now a little inflated, and it is difficult to keep that normal heart......

If this kind of ordinary heart is missing. For them, it's dangerous.