In April of Lingnan, flowers have already bloomed in spring in previous years.

It’s just that this year’s spring came a little more than half a month later, and the weather in early April is still warm and cold.

Dai Xiaohai and his wife, one holding their daughter and the other pushing a stroller.

The breeze was gentle, and a few kapok leaves were rolled up. The leaves rolled a few times, and then fell on the road weakly.

This brought a hint of chill during this period, but the seemingly thin shirt made Dai Xiaohai not feel uncomfortable. The multi-functional shirt on her body is a popular civilian product this year.

Multifunction shirts are a type of multifunctional clothing and a simplified version of astronauts' daily clothes.

The development of the aerospace industry has never been an isolated system, nor should it be an isolated system. It will transform some aerospace technology suitable for civilian use into civilian products. This is the work that Aerospace Science and Technology and Eagle Aerospace have been working hard.

Multifunctional clothing uses nanofabrics and special structures, as well as advanced semiconductor and material technology, and has excellent functions.

It has a series of functions such as insulation, heat dissipation, constant temperature, sweat absorption, waterproof, radiation protection, stabbing and bulletproof.

The functions are integrated, but the weight is almost the same as that of an ordinary shirt. It is not the kind of nonsense hype product, but the real multi-functional clothing.

Although this whole set of clothing starts at a credit point of 700, it is very cost-effective.

Dai Xiaohai is now living in a subtropical area, and the thermal insulation function of multi-functional clothing is not obvious.

In temperate, sub-cold areas, especially in the Northeast and northern Mobei, multi-functional clothing is warmer than large sweaters. In winter, wearing multi-functional clothing, even if you are drunk outside, you can withstand the influence of the low temperature environment and keep the user's body temperature.

Of course, if there is no full set of equipment, such as not wearing gloves, head covers, etc., there are still many dangers.

Although human vital sign detection data has become very popular, it will quickly call the police when it comes to contact with the user's physical problems.

But it is hard to persuade the damn thing. Even with such advanced technology today, many people still go out to drink in winter and drink unconsciously.

Anyway, Dai Xiaohai often sees people who drink and fall into drunk outdoors, then get frozen to amputation, or even to death when they are frozen.

The emergence of multi-functional clothing only provides a safer guarantee.

There is really no way to eradicate those who like to commit suicide.

After strolling on Kapok Avenue for an hour, the couple reluctantly sent their daughter back to the baby room, and then they took the tram and prepared to travel for a few days.

After getting home, I took my suitcase and came to Baiyun Airport.

Baiyun Airport has relatively high passenger flow, because this Ji Airport is an international airport and one of the air transportation hubs in the local area, Southeast Asia and Oceania.

Flight information in the lobby kept rolling.

Passengers up and down may travel, travel on business trips, or visit relatives.

Dai Xiaohai and his wife have been traveling to Southeast Asia, Oceania and other places in recent years, but considering that there are only four days left this time, the two of them did not choose too far away, but planned to take a walk in your province.

Many of the passengers around were in groups of three or five, and it seemed that most of them were traveling.

After waiting for more than an hour, the flight they ordered had arrived. It was a new domestic passenger plane under Spring Airlines. This was the first batch of commercial aircraft that had just completed testing at the end of last year.

The aircraft was created in cooperation with COMAC and the Suiren Group, codenamed "Tengfei-2015". This aircraft was originally available for the market in July last year.

However, Huang Xiuyuan later delayed the listing, mainly to modify some of the internal supporting facilities, which delayed for more than four months.

Tengfei-2015 commercial aircraft is a large transport aircraft, which uses a new generation of safe N30 fuel. The N30 is an improved version of the N20. The energy density is similar to that of the N20, but the safety is one order of magnitude higher.

The detonation rocket engine has also undergone a series of improvements and optimizations, not only has the energy consumption reduced by 3.7%, but the control accuracy and the resonance effect of detonation have also been improved to a certain extent.

The maximum passenger capacity of this aircraft can reach 850 people, but after research, in order to ensure safety, the maximum passenger capacity has been limited to 450 people.

After getting on the plane, Dai Xiaohai, who was riding a domestically produced plane for the first time, looked around curiously.

The passenger cabin in front of you has a completely different style from the previous Boeing or Airbus passenger planes.

The independent passenger seats look a bit like a cylindrical shape.

In fact, these passenger seats are independent escape pods. Once an accident occurs in an airplane, they can be quickly closed and closed and become an escape pod.

The escape compartment is cylindrical, containing a seat, as well as a parachute system, buffer and floating airbag system, survival system, communication system, etc.

This is why, the passenger capacity that could have accommodated 850 people was reduced by half in order to install these escape pods.

Although the transportation volume of aircraft is worrying, among the current means of transportation, it is still the fastest and most convenient intercontinental transportation method.

Especially for the forces like Greater China with a huge span of control zones, aircraft are still the fastest long-distance transportation method.

But one of the big problems with aircraft transportation is safety.

Even after countless tragic air crashes, the plane still has an embarrassing situation of crashing and dying. This is one of the reasons why Huang Xiuyuan and others rarely take planes. Even if they take planes, they can only take special planes.

So what exactly is the reason for the low survival rate of civil passenger plane accidents?

Is it really impossible for civilian passenger planes to change this situation? The answer is obviously no.

Since it can change the situation where something happens, why are the aircraft manufacturing companies or airlines not improving this aspect?

The answer is obvious.

Just one word - money.

After all, launch vehicles in the aerospace field have escape towers, and civil aircraft with an order of magnitude less difficult cannot even be able to make an escape pole.

It can be earned, but it does not mean that capitalists can do it.

Because the cost of the escape pod is too high, as for the escape pod of the Tengfei passenger plane, everyone needs to be equipped with an escape pod, and the average comprehensive cost of each escape pod will reach 1.34 million Huayuan.

The passengers (450) and crew (15) of the takeoff passenger plane were 465 people in total.

This requires an increase of about 610 million Chinese dollars in cost and a reduction of 400 passenger capacity, which is a waste of life for airlines.

Only in the special situation in Greater China can it be possible to implement escape pods to ensure the safety of every passenger.

It is basically impossible for foreign airlines to do this.

Of course, the Tengfei passenger plane can only fly in the control area of ​​Greater China. It is not that other forces have airworthiness certificates, but that N30 fuel cannot be leaked.

However, COMAC is already designing a fuel version of the detonation rocket engine, and it is estimated that around 2018, it can launch a fuel passenger aircraft for international flights.

In fact, airlines may still recover their costs after purchasing takeoff passenger aircraft and put them into operation.

Because the speed of the soaring passenger aircraft can reach 1.3 times the speed of sound, the fuel cost for the same range is only about 21 to 26% of that of the fuel engine.

In addition, the design service life of the aircraft can reach 40 years. If it is well maintained, some parts can be replaced, which can be extended to about 60 years.
Chapter completed!