Alien Industrial Tyrannosaurus-Rex

Supersonic fighters are very common.

But supersonic commercial airliners are very rare.

It is estimated that many people will think that it does not exist at all. At least, it does not currently exist.

In fact, in human history, there have been two supersonic passenger planes that have really been put into commercial applications.

One is the famous Concorde airliner. Developed jointly by Britain and France. The top speed is around Mach 2. When flying at supersonic speeds, the nose temperature is as high as 127 degrees Celsius.

One is a picture 144 of a polar bear. This guy is definitely a freak. To say that it is a commercial airliner is obviously a bit underestimated. In fact, it is more often like an ultra-long-range strategic bomber. Its maximum take-off weight reached a shocking 207 tons! The maximum speed is above Mach 2.35. Faster than many fighters!

This is not a commercial airliner at all!

It was a cameo by a fighter plane!

All other commercial airliners fly at subsonic speeds. About 600 kilometers per hour.

So, why are supersonic airplanes short-lived?

There are many reasons for this.

First, the cost is high.

Second, poor safety.

"The high cost includes two aspects."

"The first aspect is the high manufacturing cost of the aircraft itself."

"The second is the high cost of commercial operations."

Shangguan Yu Qiang pointed to the material and proclaimed the section.

Flying at supersonic speeds can cause many problems.

First of all, the engine requirements are very high. Various performance parameters are very demanding.

Secondly, the material cost of building the fuselage is high. A large amount of titanium alloy must be used. Or high-end carbon fiber. Leading to continuous skyrocketing costs.

For example, ordinary aluminum skin cannot be used just for the material of the body. When flying at supersonic speeds, friction between the fuselage and the air will cause the fuselage to heat up. The Concorde airliner has been tested, and the nose temperature can reach 127 degrees Celsius. The temperature of the fuselage also exceeds 90 degrees. Obviously, it must use high-temperature insulation materials.

Don't think that only the interior of a passenger plane will cause a fire. The high temperature outside is also a very big hidden danger.

If the temperature is not strictly isolated, something will happen sooner or later.

In fact, the supersonic passenger plane has had many accidents.

Whether it is the Concorde or Figure 144, there have been multiple air crashes with heavy casualties.

On June 3, 1973, at the Paris Air Show in France, the "Concorde" aircraft and Figure 144, the only two supersonic passenger aircraft in the world, performed a flight demonstration together. Picture 144 suddenly turned into a violent dive during the climb after the last pass, and then the plane disintegrated in the air. 6 crew members on board and 8 people on the ground were killed. Random picture 1 144 chief designer Vladimir Even Gerov died together.

On May 23, 1978, an improved Figure 144D was tested. During the ground start and ignition process, the fuel line ruptured. After the aircraft took off, due to a large amount of fuel leakage, a fire alarm occurred at an altitude of 3000 meters, and the aircraft returned in an emergency. Three engines were parked one after another, and the cockpit was also full of smoke. The driver calmly responded and successfully made an emergency landing on a flat ground. Two flight engineers among the eight crew members were killed. After the accident, Figure 144 completely stopped passenger transportation.

The Concorde plane crash was even more serious.

On July 25, 2000, during take-off of the Concorde airliner AF4590, it ran over a small iron strip from another Continental Airlines DC10 on the runway, causing a puncture, and the tyre fragment hits at a high speed exceeding the speed of sound. The fuel tank in the wing. Then a fire broke out, causing the plane to explode and crash into a hotel near the airport within minutes of takeoff. This was the only major accident during the service of the Concorde. It was also the first ever supersonic jet airliner that crashed. This tragedy caused 113 lives.

After the accident, the Concorde also withdrew from the passenger market.

Of course, the accident is not the main reason.

Other subsonic planes also have many air crashes.

For example, the Boeing 747 has a lot of crashes. But it is also the most mainstream airliner.

It is actually the cost that caused the exit of the supersonic passenger plane.

Especially the fuel cost is indeed too high.

In order to pursue supersonic speed, the power of the engine must be great.

The greater the power, the greater the fuel consumption.

The greater the fuel consumption, the higher the flight cost, which will inevitably lead to a skyrocketing ticket price.

For example, in the old Concorde, the ticket price from New York to London was as high as nine thousand dollars. There has never been a discount.

U.S. dollars!

Nine thousand dollars!

A ticket is only nine thousand dollars!

It's still nine thousand dollars a few decades ago! Today, it is definitely 100,000 yuan.

How many people can ride? Dissatisfaction is inevitable.

Over time, the airline suffered too much loss, and he did not want to continue operating.

In addition, the price of the supersonic airliner itself is very expensive.

The Boeing 737 airliner is only $76 million.

The price of a supersonic passenger plane is more than 50 higher than it.

The subsequent fuel cost is also higher than 50. In some cases, even more than 100, or 200.

The fuel cost of supersonic flight is often twice or more than that of subsonic flight.

With such a high price, it is almost impossible to pay back.

However, the Boeing 737 is very fast.

Its price is good, and the fuel cost is relatively low.

To put it aside, the Boeing 737 is the world's first jet airliner with a production volume of 10,000.

The newcomer Airbus A320 is in front of it, and it is the level of pediatrics.

"What is the pre-sale price of the C919?"

"The average is fifty million dollars."

"is it?"

"Yes."

Wang Bu nodded slowly.

Fifty million dollars! The price of a Su 35 fighter jet.

Compared with the US$76 million of Boeing 737, it is indeed a lot cheaper. This may help it win a lot of orders.

However, the manufacturing cost of C929 can be further compressed.

Especially in the engine.

The single W125 engine sells for only one million US dollars.

The first stage of the two engines is only two million dollars.

Compared with the CFM engine, the price is less than one-tenth, which is simply a free gift. for free.

The engine alone can compress at least $5 million.

The entire power system can also be compressed by 5 million US dollars.

In other words, the final price of C929 may be around US$40 million. About half of the Boeing 737.

The last one is safety.

The supersonic airliner uses many new technologies.

Some new technologies may be immature, flawed, and the results are magnified.

At the same time, because the speed is too fast, once an accident occurs, the consequences are often extremely serious. The reason is the same as a highway accident.

However, it cannot be said that the safety of the supersonic airliner is worse than that of the sonic airliner.

In the final analysis, it is still a question of economic interests.

"Das Kapital" puts it well:

If there is a profit of 20, capital will be ready to move.

If there is a profit of 50, capital will take a risk.

If there is a profit of 100, capital will dare to risk hanging their heads.

If there is a profit of 300, capital will dare to trample all the laws of the world. Murder and arson are no problem.

and so……

"Make money!"

"Make money!"

"Make money!"

This is the first priority.

Not let yourself make money. It is to make the airlines make money.

As long as airlines can make more money, all kinds of orders will naturally come in.

Speed ​​is not actually a problem.

The key is to save costs!

The biggest cost of commercial aircraft is fuel.

There is no fuel cost. For the route from Yangcheng to the capital, the air ticket can be reduced to less than 500 yuan.

There is no fuel cost, and on the route from Magic City to New York, the ticket price can be reduced to less than US$500. About one-third of the original.

Why is COMAC so anxious?

Because this is a completely blank air freight market!

As long as C929 is produced, it will be snapped up by major airlines.

Now all airlines have been tortured by high oil prices and are going crazy. They must reduce operating costs at all costs.

Inferring from this, the export market is also very vast.

Who doesn't want a passenger plane that does not require fuel costs?

However, COMAC himself was anxious about this matter.

why?

The engine is in Wang Buan's hands.

All issues related to the engine have to be signed by Wang Bu'an. Must be endorsed by Wang Buyan.

Otherwise, if something goes wrong, no one can afford ~www.wuxiaspot.com~ Mr. Pei is here. "

"Who?"

"Mr. Pei, please!"

"it is good."

While thinking about it, Shangguan Yu Qiang came in with a person.

Wang Bu'an looked up and was surprised.

He stood up hastily.

Pei Yaoxian!

It was Pei Yaoxian!

Minister Bae...

It turns out that he is the leader of the Ministry of Aerospace Industry!

"Little guy, don't forget my old guy." Pei Yaoxian said cheerfully.

"How dare I." Wang Bu'an cleverly offered a savory flattery, "I have forgotten who, and I dare not forget you, sir!"

"Good, good, good, I love to hear these words."

"Please sit down."

Pei Yao sat down first.

His body is still relatively tough. health.

There are some scars on the body. It feels like I've been fighting with others. Still a very cruel fight.

Imagine it for a moment and feel that he can survive, it is really very blessed!

"Oh. Little thing. I stayed in Nanjiang for ten years." Pei Yaoxian said.

"Ten years?" Wang Buan smacked secretly.

"Almost. I went before it started. I didn't come back until the ceasefire was officially signed."

"Oh."

Wang Bu'an secretly admired.

They are all old bones crawling out of the dead pile!

It’s not easy to be able to stay in the war-torn Nanjiang for ten years and come back alive.

Huang Ruoxi's grandfather is like this.

The same goes for Pei Lan's grandfather.

Even Zhou Xiaoqi's grandfather is like this.

I feel that people of that generation really paid a lot. All of them are not fuel-efficient lamps.

No wonder Long Zhenyu would be on the street so quickly.

He is offending the public.

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