Hand rubbing nuclear fusion live in the wilderness

Chapter 357 Returning Space Shuttle

Chapter 357 Returning Space Shuttle

Calculating the return trajectory of the space shuttle around the typhoon is not difficult for the won.

It didn't take long for him to enter the parameters required for the return flight and the preset commands that needed to be activated into the computer, and sent them to Space Shuttle Zero through the long-wave signal transmission tower.

The new order replaced the old order, but the effective time is not now, and the space shuttle is still landing according to the original preset.

These new commands entered by him on the ground will only be activated at a low altitude of [-] meters from the ground.

The reason why it is set at a low altitude of [-] meters is because of the cloud cover.

Whether it is ordinary rainfall or rainfall caused by typhoons, its main structure is clouds, and even altostratus generally does not exceed 8000 meters in height.

At a height of [-] meters, you can basically avoid all the clouds.

And using the new command at this altitude can not only avoid the typhoon cirrus clouds below, but also make a landing with minimal changes, ensuring the safety and stability of the space shuttle.

The won is set at [-] meters for stability and safety. In fact, under normal circumstances, the height of cumulonimbus and nimbus clouds, which are in charge of rainfall, generally do not exceed [-] meters.

Thousands of meters below are the clouds that form the rain.

The distance between a kilometer and 8000 meters belongs to the middle cloud layer.

Just like the rainy season in the southern region that lasts for more than ten days or even a whole month, its rainfall layers are all here.

As for the clouds above the altitude of 8000 meters, they are basically composed of many tiny water droplets or ice crystals, which look like thin gauze or feathers. .

Of course, sometimes these clouds also contain some larger raindrops and ice and snow particles, and have a certain thickness.

And this is the cloud layer that civil aviation aircraft generally need to avoid, which is relatively rare.

But no matter what kind it is, even if it is a typhoon, the height of the cloud layer will not exceed [-] meters under normal circumstances, unless it is a super typhoon of more than ten levels.

Therefore, the [-]-meter altitude switching flight command set by the Korean Won is sufficient for the current space shuttle.

The speed of the space shuttle landing was much faster than the speed of ascent. After waiting for a long time, from the display screen recording the detailed data of the space shuttle, Won saw that the current altitude had dropped to about [-] meters.

And this altitude is rapidly decreasing with time, and it didn't take long for the altitude to reach the [-] meters of the switching command.

Looking at the display screen in front of him, Han Yuan held his breath, staring at the logs and video screens, the altitude was dropping rapidly, and his heart was also raised.

"As soon as the temporary order is activated."

"Current execution results: success, the output power of the electromagnetic propulsion system is reduced, and the power of the electric propulsion-no working fluid engine is increasing,"

"."

In front of the console, on the log display screen, a line of logs fed back by the space shuttle flashed across.

Seeing the successful activation of the temporary order, Han Yuan also heaved a sigh of relief, the most critical first step was successful.

The log appeared, and Won turned to look at the video screen display screen. The real-time video transmitted from the space shuttle can clearly see that the speed of the space shuttle's descent is much slower.

From the beginning, it fell like a straight line, and turned into an arc.

Because the electromagnetic propulsion system at the tail is still in operation, the space shuttle still keeps flying forward.

But when the electric propulsion engine at the bottom can finish supporting the hovering of the space shuttle, the electromagnetic propulsion system should stop output.

At that time, the small electric propulsion engine deployed on the space shuttle will start to assist the space shuttle to stop.

Although the distance to stop the space shuttle is very long, at an altitude of [-] meters, there is already enough air resistance, supplemented by a small propulsion engine, it can still be done.

In the case that the network does not cover the entire planet, South Korea dare not let the space shuttle fly out of the coverage of the base's long-wave signal tower.

If it flies out, although it will not crash under the support of the electric propulsion engine at the bottom, it will be very troublesome to take it back.

"Temporary order two enabled."

"Current execution result: success, it is detected that the output power of electric propulsion has reached the equilibrium point, and the electromagnetic propulsion system is stopping"

"."

"Temporary order three is enabled."

"Current execution results: success, the electromagnetic propulsion system has stopped, the heading detection has been completed, the reverse small electric propulsion engine is starting, and the remaining amount of liquid xenon working fluid is 21.87%"

"."

As the landing speed of the aerospace engine slowed down, the results of several temporary commands successfully executed were fed back on the log display.

"very good!"

"There will be no surprises that the space shuttle will come back normally."

Looking at the log on the log display screen and the video of the space shuttle still moving forward, Han Yuan's eyes brightened, and his heart was relieved.

When the output power of the electric propulsion engine is sufficient to support the space shuttle in the sky, the electromagnetic propulsion system will be shut down.

Although the space shuttle is still flying far away, it is caused by inertia, and the small electric propulsion engine can stop it within the signal transmission range of the long-wave signal tower.

Next, you only need to wait for the space shuttle to come back after being stationary in mid-air and using sunlight to replenish its electrical energy.

At an altitude of [-] meters, for Space Shuttle Zero, the electric energy it carries is enough for it to take off and land.

As long as the energy is sufficient, it is not difficult for the space shuttle to pass through the clouds, unless it is extremely unfortunate that it is struck by lightning, which will have a certain impact on the landing of the space shuttle.

Won considered this possibility when designing it. After all, encountering lightning on a rainy day is a relatively normal thing, and it has also taken certain protective measures in accordance with ordinary civil aviation airliners.

When the space shuttle is struck by lightning, the current will flow through the casing and be discharged by the lightning rod protruding from the fuselage or wing, and will not enter the conductor and damage the functional chips and electric propulsion engine inside.

Although lightning will not have any effect on the shell, when a strong current strikes the fuselage, the magnetic field formed will have an impact on some sensitive electronic components on the space shuttle, affecting communication, signal reception, etc. Drop some electronic components.

These are the questions.

What's more serious is that Won is not sure whether the electric propulsion engine at the bottom will be affected after the lightning strikes the space shuttle.

The thrust generation of the electric propulsion engine lies in the two magnetic fields inside.

Even a slight disturbance would reduce the output power of the electric propulsion engine.

Previously, when the Space Shuttle Zero passed through the ozone layer, it encountered a magnetic storm, which led to a reduction in engine output power, which in turn caused problems.

And when lightning, a strong current of hundreds of millions of degrees, hits the space shuttle, the strength of the magnetic field formed is much stronger than that of a magnetic storm.

Although the duration of this magnetic field will be very short, the impact on the electric propulsion engine is not comparable to that of a magnetic storm.

If the situation is serious, it is also possible to cause the electric propulsion engine to stop running.

Of course, this possibility is extremely small, and even if one electric propulsion engine is disturbed and shuts down, there are still two remaining electric propulsion engines that can support it.

When it is detected that a certain electric propulsion engine fails, the remaining two electric propulsion engines will increase the output power to make up for it.

If all three electric propulsion engines fail, then the emergency plan also has an electromagnetic propulsion system.

It's just that at that time, the probability of crashing is very high.

This is a defect of the current Space Shuttle Zero, and it is also something that Won is worried about. Although he has done some protective treatment, the problem still exists.

He doesn't have enough time to deal with this point. If he wants to deal with it, there are many things to add and change, and the time required is not short.

Furthermore, the probability of all three electric propulsion engines dying is still very low.

Of course, with enough time, Han Yuan will still find a way to make up for this shortcoming. He is not willing to gamble on the odds, no matter how low it is.

It's like you're in the ICU, you can win Reaper [-] times, but lose once and you'll get nothing.

In fact, encountering lightning may cause the electric propulsion engine to shut down. There are many similar shortcomings in Space Zero.

The reduction in engine output power caused by a magnetic storm during liftoff can also be counted as one, but the problem is not that serious.

In addition, there are some problems such as sealing and temperature difference that may cause such and other problems in the space shuttle.

But these defects, like lightning strikes, are extremely low-probability events, and he has also taken some corresponding protective measures, which will not affect the normal operation of the space shuttle in most cases.

It's just that these problems do exist. After all, it didn't take him long to build this space shuttle. Even if there is a Leluo triangle aircraft for reference, even if there are technology points that can be exchanged for various parts.

But after all, there is not much time, and many defects cannot be fully made up for.

It takes time to deal with these things, and what he lacks the most is time.

After the command switch, it took more than half an hour for Space Shuttle Zero to come to a complete stop from taxiing.

The thrust provided by the small electric propulsion engine, as well as the resistance of the atmosphere, are too weak when facing an aircraft that flies at a speed of more than one kilometer per second and weighs nearly ten tons, even though it has lost its forward momentum.

But fortunately, it finally stopped, it took a distance of nearly 400 kilometers, and finally stayed in the air of [-] meters.

The status display screen of the space shuttle records the detailed data of the current number zero.

"Current sailing altitude: 20.09 kilometers"

"Current power reserve: 68.115%."

"Current liquid xenon working fluid remaining: 19.78%."

"."

A series of data came into Han Yuan's eyes, and what he was most concerned about was naturally the power reserve and the remaining amount of liquid xenon working medium.

The power reserve is at 60.00%, and the remaining working fluid is less than 20.00%, both of which are related to the return of the space shuttle later.

Needless to say, the electric energy, the function of the working fluid is to adjust the navigation direction, angle, buffer flight speed, reverse flight, etc. when returning.

Both are crucial.

The remaining amount of working fluid is fast enough, five tons of working fluid, 20.00%, that is, one ton, is enough.

As for the electrical energy, the space shuttle suspended in the sky can replenish it under the sunlight at two o'clock in the afternoon.Although it is relatively slow to replenish when the three electric propulsion engines consume energy at the same time, it can still be replenished.

Space Shuttle Zero hovered more than 400 kilometers away from the base, replenished its energy at an altitude of [-] meters, and by the way, with the assistance of a small electric propulsion engine, turned around and flew back toward the base.

Won waited quietly in the control room of the base for the return flight of the space shuttle.

These are still in his calculations.

For a distance of more than 400 kilometers, the power provided by the small electric propulsion engine alone is too slow, so the power of the electromagnetic propulsion system is needed, but the speed cannot be as fast as the return.

When the power reserve on the status display reaches 90.00% at [-], on the log display, the new command execution result log is displayed.

And the space shuttle that has turned its direction is heading towards the base with the support of the electromagnetic propulsion system at the tail and the electric propulsion engine at the bottom.

The altitude has not changed, it is still at an altitude of [-], and even because the wings of the space shuttle provide some lift, the altitude has risen a little.

After spending an hour and a half, the zero space shuttle finally returned to the air above the base, and is now hovering at an altitude of more than 2 meters, making the final energy supplement.

At this point, the landing of the space shuttle is basically a foregone conclusion, unless lightning strikes all three electric propulsion engines to death.

Han Yuan looked up at the sky. Although it was still raining, there were no dense dark clouds. In this kind of weather, thunder and lightning would hardly be produced.

Lightning is a phenomenon of electrical discharge in the atmosphere. Generally, it only occurs when it rains, but its formation also requires conditions.

Only ultra-low-level cumulonimbus clouds can form thunder and lightning, and the lightning phenomenon will only occur when the charge density accumulated in the cloud layer is very large.

The reason why it is common in summer is that in summer, the hot air on the ground convects against the cold air in the sky, which will quickly form thick cumulonimbus clouds, and then the cumulonimbus clouds collide to form deafening thunder and lightning.

As for the typhoon, strong thunder and lightning will also form, but the tail wind after passing through is not included.

The small rainfall carried by the tail wind has relatively thin clouds and is higher than the ground. Regarding this, Won is not too worried.

The space shuttle stayed at a high altitude and waited for a period of time. After the electric energy reserve accumulated to more than 90.00%[-] again, it began to descend steadily and rapidly.

Passing through the clouds, the shooting equipment sent back the picture.

Large swathes of dark clouds are just like undulating peaks, just below your feet.

But soon, the space shuttle passed through these mountain peaks, and the picture on the display screen also dimmed.

Looking at the picture on the monitor, Han Yuan still felt a little uneasy.

Although the cloud layer carried by the tail wind is much thinner than that of the cumulonimbus cloud, the charge it carries is also countless, and the hedging phenomenon is also weak, but it is not impossible to form thunder and lightning.

(End of this chapter)

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