Coquettish Rebirth

That's right, a big plane can't handle such a thing, but it's true that a small plane can't!At least if Lao Song did a rough mental calculation according to his own understanding, in fact, the body should still be able to withstand this g-force-although the moment the parachute is opened, it will decelerate instantly, resulting in a large acceleration of gravity, but you can use the guide parachute first , the drogue parachute, and then the main parachute...just like the practice of returning satellite cabins at home and abroad!If there is a drogue parachute, it is possible to decelerate such a small aircraft of a special plane to a stage that the airframe can bear and then open the main parachute, so that the pull on the entire aircraft structure will be much smaller.

But since a small plane can hold a parachute in this way, why hasn't other aircraft manufacturing companies in the world tried to do so?Lao Song knew that the reason was very simple - because even small planes were mostly sold to airlines.And airlines are mainly used for commercial operations!What does business need?It is to make money!The reason is that the cost should be low and the fuel economy, so that people can make money!

Originally, most of the stages of aircraft accidents were during take-off and landing, because at this time the relative speed was low and the altitude was also low. If there was a problem, it was too late to remedy it and it was shot on the ground.From this point of view, the chances of a plane having an accident while flying in mid-air are quite small, so small that you can basically win the first prize in the lottery.Then, because of cost considerations, the airlines may not be equipped with such small aircraft, and the company that makes the aircraft will not consider this. After all, in terms of probability, there are several aircrafts in the world that have accidents in mid-air. Can you use a parachute?Or get a parachute for the whole plane?This would require major modifications to the aircraft.Many parts need to be reinforced, and then the fuel economy may further drop or something.The increase in cost leads to an increase in selling price - this is actually a typical market economic model. The best selling products that can be sold in the market are not necessarily the best in quality!It is the easiest to mass-produce, and the cost is relatively low!

But, Jia Hongjian and the others have money, so they don't care about the economy or not.They can spend a lot of money just to survive.From this point of view, it is also true-even if the chances of winning the lottery in the world seem to be low, but to put it bluntly, don’t people win the lottery every month?What if it happened to be me?It's fine if you don't have the money to get such a device. If you have money, it's understandable to make preparations for the extremely small chance.Even if one parachute is not enough, you can install three parachutes or something!

After thinking of this, Lao Song nodded. "I think this plan... can be discussed and operated. How about it, Mr. Jia, you give us a month, and we will see how much surgery is needed on the aircraft for this modification. When the parachute is put in, we will have to do something to the aircraft." How big is the structural change, and it will be more appropriate to see where it is placed. If it is placed on the vertical tail, we must also consider the possibility of the vertical tail falling off, because in the Japan Airlines 1985 air crash in 123, most of the vertical tail fell off and caused "fluid There was a problem with the pressure system and the control surface. The plane crashed after flying up and down in waves for 10 minutes, and 520 people died... Don’t look back. Something happened. Oh... isn't this parachute useless even if you want to use it?"

wipe.When Jia Hongjian heard it, he immediately felt that flying by plane was too much fun, didn't he?This feels like when I was just learning how to drive, watching some traffic accident highlights and videotapes, it really felt like driving would cause accidents!In the same way, now that old Song casually mentioned an air crash or something, Jia Hongjian felt that there would be problems everywhere in the plane.Of course, Jia Hongjian also knows that this is how it is—he often hears about air crashes, which of course gives people the impression that air crashes happen frequently, but in fact, this is the plane that has been involved in accidents all over the world so far. The cheapest means of transportation.Of course, it is easier to die if something happens.So, what Jia Hongjian is here to talk to people about now is to do various redundant designs and spend more money to protect the plane from accidents so that no one will die as much as possible!

Next, Jia Hongjian had an in-depth discussion with Lao Song and the others, discussing a series of ways to increase aircraft safety—for example, after installing a modern single-chip embedded system in conjunction with the previous wire altimeter , This allows Jia Hongjian and his family's special plane to have an extra ground proximity warning system, or a terrain warning system, so that even if flying in unfamiliar terrain, even if the surrounding is surrounded by clouds and fog, but when the plane is too When it is close to the ground, for example, when it is 200 meters away from the ground, the system will automatically issue a warning.Such a thing, such as some older aircraft in China, does not exist yet!

In addition to such transformations, there are also some more modern transformations, such as transforming some TVs in the cabin into LCD TVs.There are not many other modifications, but the cockpit of the aircraft has been further modernized slightly - many traditional instruments designed before have been moved to unimportant corner positions, and then the driver is directly in front, It was replaced with an integrated computer display board made up of several LCD monitors.In this way, the equipment in the entire flight cabin looks much more fashionable.As for these displays, as long as they are turned on and a few buttons are pressed, any instrument that the aircraft should have can be displayed at will - of course, this instrument is an electronic style.

This kind of electronic instrument does not decide everything. After all, from the perspective of safety, if the plane has no power, the traditional mechanical watch can still be read.But if the electronic device has no power, there is no way - because just like the engine provides electricity after the car is started, the aircraft also relies on the rotation of the engine to provide electricity.So if the engine doesn't turn, the electronic instruments of the plane can't be used.In this case, of course, there must be a redundant design, that is, to prevent accidental design.Then the previous mechanical instruments existed as a pure backup, and even Jia Hongjian and his plane were going to install the equipment used by Airbus and other latest electronic passenger planes-pu! [

This pu is an aviation term, not a pu integrated with a graphics card made by m later.To put it bluntly, such a PU is a small fan - when the engine stops, such as when the engine is stopped in the air, in order to allow the pilot to understand the situation of the aircraft, and at the same time use the motor to drive the hydraulic control device to control the aircraft, it is Electricity is required.And such a pu is a small fan that will automatically extend out of the aircraft when the aircraft is powered off.This literary website looks small, but in fact, the small fan on Jia Hongjian’s plane has a diameter of 50 cm as a whole, which can be said to be much larger than the blades of a household electric fan!

Such a small fan will automatically stretch out when the aircraft loses power, and then the blades will be driven by the wind, and then a small generator connected to the pu will start to supply power. In this way, although it cannot supply the entire The full power of the aircraft during normal flight, but it is still possible to do the most basic emergency driving-that is, you can see various instruments, the onboard computer can work, and various "hydraulic" control surfaces can also work. As for Jia Hongjian in the cabin, don’t even think about being able to watch TV or make phone calls, and even the lighting cannot be provided!

Such a set of modifications, plus the need to make a parachute, it can be said that the aircraft may have to be rebuilt from the beginning to the end—sometimes the aircraft is modified from the beginning to the end, it is not necessarily more difficult than building a new aircraft. Simple.For example, the electronic equipment for Jia Hongjian and the others can be said to be the system that came out of the Super Seven project that Chengfei helped Pakistan to get, which was later the multi-functional fighter jet Xiaolong f-1.As for such a system, the latest modification has already been used on the J-[-] aircraft that is undergoing test flight.

Of course, it is impossible to put military equipment on civilian aircraft without changing it, which also involves the factor of leaking secrets!But at any rate, these devices are designed and manufactured by Chengfei and the corresponding companies, so they are slightly converted from the military to the civilian population. what?

Finally, although such a modification period is long, it will take about a year, but the aircraft will be safer after such modification-there will be a total of four redundant designs, which means that there are four systems for backup!All are backups in case there is a problem with the main control system!Then such a transformation, the price is not cheap.Even if the aircraft is not redesigned once, it is estimated that the total modification cost will be [-] million yuan per aircraft!It's basically like buying a new plane!If the shape of the plane needs to be modified, it will cost [-]-[-] million yuan, which means that Jia Hongjian and the others have made four new planes, and these four planes are useless!

Others may not be willing to spend money like this, but Jia Hongjian's family is so rich, how could they not be willing to spend money just to save their lives?So Jia Hongjian nodded generously and was willing to pay, and then he went to fly to Shaanxi to fly to these aircraft factories and design institutes, and he happily accepted the order.After all, their life is still a bit sad these days. Such a military-to-civilian business is not included in the country's list of prohibited businesses.This kind of business is a very important supplement to increase the wages of workers and the treatment of the design team! (To be continued. If you like this work, you are welcome to come to the starting point to vote and monthly pass. Your support is my biggest motivation. Mobile phone users, please go to m to read.)

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