The Light of Domestic Products: The whole world begs me to sell
Chapter 423 Why is Rocket Technology So Difficult?
Chapter 423 Why is recoverable rocket technology so difficult
After thinking for a long time, Hu Lai decided to call Prince Sharby first.
The first thing, it has been so long, anyway, I still have to personally explain to Prince Sharby the progress of the "lunar probe" landing on the moon.
Now that there is a "Voyager Space Station" plan, there is a reason to stabilize Prince Sharby.
The second thing.
Naturally, let’s talk about soft sister currency settlement by the way.
After making up his mind, he silently calculated the time difference in his heart, and then dialed Prince Sharby's private phone number.
After two brief rings, the amiable voice of Prince Sharbi came from the other end of the phone.
"Hu!"
"I'm so happy to receive a call from you personally."
"Let Sha take a guess. Are you calling yourself to tell me that we have made new progress in the 'Moon Exploration Project' we cooperated with?"
Hu Lai suddenly smiled awkwardly.
"Yes, but not quite."
"That's right, Prince Charby."
"Our cooperative 'lunar exploration program' is advancing in an orderly and normal manner. I believe that we will soon see the 'lunar probe' we cooperate with fly to the moon, and then collect lunar soil to complete our scheduled scientific research tasks."
"but……"
"Before that, we had an even better space program called Voyager."
"In this plan, we will create a large-scale commercial space station. The space station will consist of a large utility module plus 24 independent small space modules."
"I thought you would be interested..."
Unexpectedly.
Before he could finish his introduction, Prince Sharby said slightly apologetically:
"Huh, I'm very sorry..."
"I believe that it is easy to build a space station with your technological level, but at present, if there is no substantial progress in our previous 'Lunar Exploration Program', it will be difficult for me to persuade my father Huang Jia and your company to invest ..."
"You may not know..."
Speaking of this, Prince Sharbi's voice was much lower than before.
"You may not be clear... because we have signed the 'Moon Exploration Agreement' for more than a year and there has been no progress."
"So now several royal elders in the country have clearly expressed their dissatisfaction with this cooperation, and even used this to criticize the father's original decision for being too hasty."
"so……"
"We may not be able to participate in your 'Voyager Space Station' program this time."
Hu Lai was taken aback.
He suddenly felt that he was still a little optimistic.
But thinking about it carefully, I feel right.
How did I sign the "Moon Exploration Project" with Gou Dahu in the first place?
It was because of the birth of the "Tongtian Satellite" at that time that it shocked the world with its extraordinary communication capabilities several grades ahead of all communication satellites in the world, and thus suddenly gained great fame and prestige in the world.
At the same time, a CN-NB communication organization was established at that time to fight against 3G-PP's monopoly in the communication field, which completely attracted the attention of the world.
And what about the recent period?
On the one hand, engage in a chip price war with Ami to deal with Ami's active blockade.
On the other hand, the group's internal focus falls on somersault cloud engines and bionic robots.
As for the aerospace field, no new achievements have been shown to the world for more than a year.
In other words, the exposure and prestige gained when the "Tongtian Satellite" was launched has gradually weakened over time over the past year or so.
And most importantly, it is also an objective fact.
Currently.
Aramco is indeed the world's top leader in rocket launch, spacecraft, deep space exploration, lunar exploration, manned and other aerospace fields, and its comprehensive strength is far higher than that of Phoenix Group and Yanguo.
It's no wonder that after a long time, voices of doubt will inevitably appear within the big dog family.
thought here.
Hu Lai had a new idea in his heart.
I was thinking about whether to do this "Voyager Space Station" plan, which seems a bit unrealistic and a bit "far", but at present, it is very necessary!
The meaning of "Traveler Space Station" is not only about making money and points, but at a deeper level, it will further enhance the fame and prestige of the Phoenix Group in the world!
It's time to continue to make continuous efforts in the aviation field.
After thinking about this clearly, Hu Lai simply didn't continue to chat about the "Voyager Space Station", and there was no need to make things difficult for Prince Sharby.
"OK, Prince Charby, I understand your difficulties."
"You can also rest assured that the first phase of our cooperative 'lunar exploration program': the landing of the 'lunar probe' on the surface of the moon will soon have new progress, which will soon shut up those who doubt."
Perhaps Prince Sharby also felt that it was not good to directly reject Hu Lai's "Traveler Space Station" plan.
The tone has also become much softer.
"Hu... as long as you really create a space station, I can promise you now that we can buy an independent cabin."
"Haha! Well, one more thing..."
Hu Lai laughed, and when he said this, he said another thing this time.
"There is one more thing. Now that our economic and trade exchanges are very frequent, we hope that your country can use soft sister coins for settlement. This shouldn't be a problem, right?"
As soon as the words fell, Prince Sharby suddenly seemed a little surprised.
"Hu, are you sure you want to pay with soft sister coins?"
"The U.S. knife is the strongest currency in the world, and the most common currency in the world. It is definitely the best choice for an international company like yours..."
"Many international companies actively ask to use US Dollars for settlement when they cooperate with us. It is hard to imagine why you offer to use Ruanmei Coin for settlement!"
Shocked, Sharbi's voice paused, and immediately revealed a trace of nervousness, lowering his voice and saying:
"Hu... If you encounter some problems, such as your official blocking, I can provide you with some solutions from a private perspective..."
Hu Lai's heart suddenly warmed up. He didn't expect that Prince Sharbi, who was thousands of kilometers away, would really think about him.
No matter how you say it, these few words of the prince already meant to regard Hu Lai as a friend.
I didn't expect the prince to continue talking, but Hu Lai interrupted directly.
"Thank you for your kindness, Prince."
"I did it out of business considerations for the company."
There was a silence on the other end of the phone, and after a while he said:
"I see, it's okay."
"Once all business transactions with you are settled with soft sister coins, we will also increase the settlement amount of soft sister coins in the crude oil trade with your country!"
This is what Hu Lai wanted.
After finishing their business, the two chatted a few more words.
After hanging up the phone, Hu Lai stared blankly at the computer screen. He had planned to call the prince of the United Arab Emirates to talk about the "Voyager Space Station", but at this moment he thought about it and decided to forget it.
The success of the previous "Tongtian Satellite" made many countries show their hospitality to the Phoenix Group, and it also made Hu Lai a little bit elated.
But after a long time, the short-term influence still dissipated under Ami's strong aerospace strength, and there is no need to find others at this time!
Everything will be discussed after the space station is actually launched. At that time, I believe that many people will beg the Phoenix Group for cooperation!
After making up his mind, Hu Lai immediately called Director Zhang.
Lao Zhang is in charge of all the business of the group, so basically if there is anything wrong, he will find Lao Zhang as soon as possible.
As soon as they met, Hu Lai took the lead in asking about the progress of the "lunar probe" landing on the moon.
Unexpectedly.
Hu Lai originally thought that there was not much progress. He did not expect that after the last large-scale acquisition of many rocket engine companies and several deep space exploration companies around the world, the project team of the "lunar probe" project was already strong, and the plan was achieved. Breakthrough!
Hu Lai is most excited.
Because the Phoenix Institute has a sufficient budget, and has a relatively relaxed scope of scientific research, the relaxed academic environment has attracted several of the world's top physicists to start research projects at the Phoenix Institute!
Immediately afterwards, Director Zhang directly reported the latest progress of the "Moon Exploration" program.
"Boss, because of our large investment over the past year, our 'lunar probe', that is, the lunar rover, has already begun to be manufactured!"
"In addition, the first step in our 'lunar exploration program', the mission of 'successfully launching an experimental satellite into lunar orbit and impacting the moon' is also counting down."
"It is said that there will be a time window suitable for launch next month, and we will officially start the 'moon exploration' plan when there are no accidents!"
without any exaggeration.
The progress of the lunar exploration project team has far exceeded Hu Lai's expectations.
But thinking about it carefully, I don't think it's too surprising.
Since the start of substantial investment in the aerospace field, the salary packages offered by the Phoenix Group have impacted all commercial aviation companies around the world.
There is no other reason.
The Phoenix Group has given too much!
In Hu Lai's words, as a latecomer, how can Phoenix Group attract people without a high salary?
That's right!
Under the money offensive, not to mention overseas, the top domestic aerospace talents are directly boiling!
To be honest, many senior engineers in state-owned enterprises, such as Aerospace Corporation, do not have high salaries, and they can only barely make a living.
The results and income they paid are quite different from those of overseas engineers in the aerospace field.
and so……
With high salaries and Phoenix Group's excellent brand name, many senior engineers working in the "national team" have also jumped ship one after another...
Not to mention the overseas situation. The aerospace engineers of Da Mao and Er Mao have not lived a good life in the past few years. As soon as they received the offer from Phoenix Group, they flew to Yan Kingdom overnight, for fear that Phoenix Group would regret it.
And those engineers from European countries, although they are also interested in the salary, but the most exciting thing for them is the "Moon Exploration Project" launched by the Phoenix Group...
To know.
Even if it is as strong as the European powers, not all countries are willing to carry out and have the funds to carry out the lunar exploration project!
Such a project is a great temptation for engineers with ambitions and ideas!
After just over a year of fermentation, the Phoenix Group has become the place that all aerospace engineers in the world want to come to except for Ami!
Hu Lai said hello several times.
Today's Phoenix Group has truly become stronger.
After so many years of large capital investment, I can finally start to do some big things with my own R&D team!
After calming down a little, Hu Lai immediately told Director Zhang about the plan of "Voyager Space Station".
Lao Zhang was not too surprised by Hu Lai's idea of building a space station.
However, after hearing Hu Lai's concept of the space station, which is to build the space station into a "space hotel" and "space travel" in the future, Lao Zhang suddenly put forward his own opinion.
"Boss, there is actually a problem that has troubled us for a long time. You talked about the idea of the space station today, so I have to bring it up to you."
"That's 'Recyclable Rocket Technology'!"
Ok?
Hu Lai suddenly came back to his senses.
"Recoverable rocket technology" actually plagued the Phoenix Group when the "Tongtian Satellite" was first launched.
But at that time, there was no way, Hu Lai did not have enough system points, and there was no domestic company with such technology reserves, so even though the rocket launch cost was expensive, Hu Lai still gritted his teeth and launched hundreds of "Tongtian satellites"!
And now.
Indeed, as Lao Zhang said, if you want to realize your positioning as a "traveler space station", then send passengers to the space station for space travel, then the cost must be within a reasonable range.
And bear the brunt of the launch price must come down.
There is no need to think too much about this point, because SpeacX's Falcon 9 rocket has already embarked on a commercial road, and Phoenix Group now only needs to cross the river by touching SpeacX.
He frowned and said:
"'Returnable Rocket Technology' is really that difficult?"
"We have studied for so long and still can't grasp it?"
Lao Zhang shook his head slightly, then took out his mobile phone from his bag, and said:
"This matter involves more professional technology, I'll let Pang Dalong, the old Pang, explain it to you."
Pang Panglong was the founder of the "Zero Space" rocket. After "Zero Space" was acquired by the Phoenix Group, Pang Panglong became the head of the Phoenix rocket department.
"also."
After a while, Pang Dalong came to Hu Lai's office.
After Director Zhang briefly explained the situation, Pang Dalong introduced:
"Boss, the principle of 'recoverable rocket technology' is actually very simple, not to mention complicated."
Hu Lai was slightly surprised and continued to listen.
"For now, the mainstream launch vehicles in countries all over the world are multi-stage rockets."
"The mission of the first-stage rocket is to launch the rocket to the 'Karmen Line' (80-100KM above sea level), which is the dividing line between space and the atmosphere."
"After reaching this position, the first-stage rocket is useless. In order to reduce weight, the first-stage rocket will be separated, and then the second-stage rocket will be ignited. The second-stage rocket will carry the payload through the atmosphere at the fastest speed in the universe and enter space. "
"The shell and engine of the separated first-stage rocket will fall from a height of 80KM and land in the designated area."
"'Recoverable rocket technology', what actually recovers is the first stage of the rocket, which is the part that we often see on TV being ignited on the launch pad and then lifted off."
Hu Lai nodded, motioning for Pang Dalong to continue.
"Under normal circumstances, the first-stage rocket falls directly to the ground heavily, falling 80KM, and even the best materials are unusable."
"The 'recoverable rocket technology' currently used by SpeacX is actually to calculate the distance between the rocket and the ground, and turn on the reverse thrust of the rocket at a suitable place from the ground to counteract the gravity of the free-falling body, so that the first-stage rocket lands smoothly."
"Among them, whether it is the calculation of the rocket reverse propulsion, the calculation of the remaining fuel in the first-stage rocket, or even the attitude problem is a small problem, we can use a large amount of simulated data, or after the real rocket is launched. Improve!"
"So, the principle and technology are very simple."
"The reason why we can't achieve it now is: we don't have rocket engines with high reliability, small size, and high thrust-to-weight ratio like them."
"Rocket motor?"
Pang Dalong nodded:
"Yes."
"Rocket engine!"
……
PS: Thank you Hou Dabao for the reward of 100 coins
(End of this chapter)
After thinking for a long time, Hu Lai decided to call Prince Sharby first.
The first thing, it has been so long, anyway, I still have to personally explain to Prince Sharby the progress of the "lunar probe" landing on the moon.
Now that there is a "Voyager Space Station" plan, there is a reason to stabilize Prince Sharby.
The second thing.
Naturally, let’s talk about soft sister currency settlement by the way.
After making up his mind, he silently calculated the time difference in his heart, and then dialed Prince Sharby's private phone number.
After two brief rings, the amiable voice of Prince Sharbi came from the other end of the phone.
"Hu!"
"I'm so happy to receive a call from you personally."
"Let Sha take a guess. Are you calling yourself to tell me that we have made new progress in the 'Moon Exploration Project' we cooperated with?"
Hu Lai suddenly smiled awkwardly.
"Yes, but not quite."
"That's right, Prince Charby."
"Our cooperative 'lunar exploration program' is advancing in an orderly and normal manner. I believe that we will soon see the 'lunar probe' we cooperate with fly to the moon, and then collect lunar soil to complete our scheduled scientific research tasks."
"but……"
"Before that, we had an even better space program called Voyager."
"In this plan, we will create a large-scale commercial space station. The space station will consist of a large utility module plus 24 independent small space modules."
"I thought you would be interested..."
Unexpectedly.
Before he could finish his introduction, Prince Sharby said slightly apologetically:
"Huh, I'm very sorry..."
"I believe that it is easy to build a space station with your technological level, but at present, if there is no substantial progress in our previous 'Lunar Exploration Program', it will be difficult for me to persuade my father Huang Jia and your company to invest ..."
"You may not know..."
Speaking of this, Prince Sharbi's voice was much lower than before.
"You may not be clear... because we have signed the 'Moon Exploration Agreement' for more than a year and there has been no progress."
"So now several royal elders in the country have clearly expressed their dissatisfaction with this cooperation, and even used this to criticize the father's original decision for being too hasty."
"so……"
"We may not be able to participate in your 'Voyager Space Station' program this time."
Hu Lai was taken aback.
He suddenly felt that he was still a little optimistic.
But thinking about it carefully, I feel right.
How did I sign the "Moon Exploration Project" with Gou Dahu in the first place?
It was because of the birth of the "Tongtian Satellite" at that time that it shocked the world with its extraordinary communication capabilities several grades ahead of all communication satellites in the world, and thus suddenly gained great fame and prestige in the world.
At the same time, a CN-NB communication organization was established at that time to fight against 3G-PP's monopoly in the communication field, which completely attracted the attention of the world.
And what about the recent period?
On the one hand, engage in a chip price war with Ami to deal with Ami's active blockade.
On the other hand, the group's internal focus falls on somersault cloud engines and bionic robots.
As for the aerospace field, no new achievements have been shown to the world for more than a year.
In other words, the exposure and prestige gained when the "Tongtian Satellite" was launched has gradually weakened over time over the past year or so.
And most importantly, it is also an objective fact.
Currently.
Aramco is indeed the world's top leader in rocket launch, spacecraft, deep space exploration, lunar exploration, manned and other aerospace fields, and its comprehensive strength is far higher than that of Phoenix Group and Yanguo.
It's no wonder that after a long time, voices of doubt will inevitably appear within the big dog family.
thought here.
Hu Lai had a new idea in his heart.
I was thinking about whether to do this "Voyager Space Station" plan, which seems a bit unrealistic and a bit "far", but at present, it is very necessary!
The meaning of "Traveler Space Station" is not only about making money and points, but at a deeper level, it will further enhance the fame and prestige of the Phoenix Group in the world!
It's time to continue to make continuous efforts in the aviation field.
After thinking about this clearly, Hu Lai simply didn't continue to chat about the "Voyager Space Station", and there was no need to make things difficult for Prince Sharby.
"OK, Prince Charby, I understand your difficulties."
"You can also rest assured that the first phase of our cooperative 'lunar exploration program': the landing of the 'lunar probe' on the surface of the moon will soon have new progress, which will soon shut up those who doubt."
Perhaps Prince Sharby also felt that it was not good to directly reject Hu Lai's "Traveler Space Station" plan.
The tone has also become much softer.
"Hu... as long as you really create a space station, I can promise you now that we can buy an independent cabin."
"Haha! Well, one more thing..."
Hu Lai laughed, and when he said this, he said another thing this time.
"There is one more thing. Now that our economic and trade exchanges are very frequent, we hope that your country can use soft sister coins for settlement. This shouldn't be a problem, right?"
As soon as the words fell, Prince Sharby suddenly seemed a little surprised.
"Hu, are you sure you want to pay with soft sister coins?"
"The U.S. knife is the strongest currency in the world, and the most common currency in the world. It is definitely the best choice for an international company like yours..."
"Many international companies actively ask to use US Dollars for settlement when they cooperate with us. It is hard to imagine why you offer to use Ruanmei Coin for settlement!"
Shocked, Sharbi's voice paused, and immediately revealed a trace of nervousness, lowering his voice and saying:
"Hu... If you encounter some problems, such as your official blocking, I can provide you with some solutions from a private perspective..."
Hu Lai's heart suddenly warmed up. He didn't expect that Prince Sharbi, who was thousands of kilometers away, would really think about him.
No matter how you say it, these few words of the prince already meant to regard Hu Lai as a friend.
I didn't expect the prince to continue talking, but Hu Lai interrupted directly.
"Thank you for your kindness, Prince."
"I did it out of business considerations for the company."
There was a silence on the other end of the phone, and after a while he said:
"I see, it's okay."
"Once all business transactions with you are settled with soft sister coins, we will also increase the settlement amount of soft sister coins in the crude oil trade with your country!"
This is what Hu Lai wanted.
After finishing their business, the two chatted a few more words.
After hanging up the phone, Hu Lai stared blankly at the computer screen. He had planned to call the prince of the United Arab Emirates to talk about the "Voyager Space Station", but at this moment he thought about it and decided to forget it.
The success of the previous "Tongtian Satellite" made many countries show their hospitality to the Phoenix Group, and it also made Hu Lai a little bit elated.
But after a long time, the short-term influence still dissipated under Ami's strong aerospace strength, and there is no need to find others at this time!
Everything will be discussed after the space station is actually launched. At that time, I believe that many people will beg the Phoenix Group for cooperation!
After making up his mind, Hu Lai immediately called Director Zhang.
Lao Zhang is in charge of all the business of the group, so basically if there is anything wrong, he will find Lao Zhang as soon as possible.
As soon as they met, Hu Lai took the lead in asking about the progress of the "lunar probe" landing on the moon.
Unexpectedly.
Hu Lai originally thought that there was not much progress. He did not expect that after the last large-scale acquisition of many rocket engine companies and several deep space exploration companies around the world, the project team of the "lunar probe" project was already strong, and the plan was achieved. Breakthrough!
Hu Lai is most excited.
Because the Phoenix Institute has a sufficient budget, and has a relatively relaxed scope of scientific research, the relaxed academic environment has attracted several of the world's top physicists to start research projects at the Phoenix Institute!
Immediately afterwards, Director Zhang directly reported the latest progress of the "Moon Exploration" program.
"Boss, because of our large investment over the past year, our 'lunar probe', that is, the lunar rover, has already begun to be manufactured!"
"In addition, the first step in our 'lunar exploration program', the mission of 'successfully launching an experimental satellite into lunar orbit and impacting the moon' is also counting down."
"It is said that there will be a time window suitable for launch next month, and we will officially start the 'moon exploration' plan when there are no accidents!"
without any exaggeration.
The progress of the lunar exploration project team has far exceeded Hu Lai's expectations.
But thinking about it carefully, I don't think it's too surprising.
Since the start of substantial investment in the aerospace field, the salary packages offered by the Phoenix Group have impacted all commercial aviation companies around the world.
There is no other reason.
The Phoenix Group has given too much!
In Hu Lai's words, as a latecomer, how can Phoenix Group attract people without a high salary?
That's right!
Under the money offensive, not to mention overseas, the top domestic aerospace talents are directly boiling!
To be honest, many senior engineers in state-owned enterprises, such as Aerospace Corporation, do not have high salaries, and they can only barely make a living.
The results and income they paid are quite different from those of overseas engineers in the aerospace field.
and so……
With high salaries and Phoenix Group's excellent brand name, many senior engineers working in the "national team" have also jumped ship one after another...
Not to mention the overseas situation. The aerospace engineers of Da Mao and Er Mao have not lived a good life in the past few years. As soon as they received the offer from Phoenix Group, they flew to Yan Kingdom overnight, for fear that Phoenix Group would regret it.
And those engineers from European countries, although they are also interested in the salary, but the most exciting thing for them is the "Moon Exploration Project" launched by the Phoenix Group...
To know.
Even if it is as strong as the European powers, not all countries are willing to carry out and have the funds to carry out the lunar exploration project!
Such a project is a great temptation for engineers with ambitions and ideas!
After just over a year of fermentation, the Phoenix Group has become the place that all aerospace engineers in the world want to come to except for Ami!
Hu Lai said hello several times.
Today's Phoenix Group has truly become stronger.
After so many years of large capital investment, I can finally start to do some big things with my own R&D team!
After calming down a little, Hu Lai immediately told Director Zhang about the plan of "Voyager Space Station".
Lao Zhang was not too surprised by Hu Lai's idea of building a space station.
However, after hearing Hu Lai's concept of the space station, which is to build the space station into a "space hotel" and "space travel" in the future, Lao Zhang suddenly put forward his own opinion.
"Boss, there is actually a problem that has troubled us for a long time. You talked about the idea of the space station today, so I have to bring it up to you."
"That's 'Recyclable Rocket Technology'!"
Ok?
Hu Lai suddenly came back to his senses.
"Recoverable rocket technology" actually plagued the Phoenix Group when the "Tongtian Satellite" was first launched.
But at that time, there was no way, Hu Lai did not have enough system points, and there was no domestic company with such technology reserves, so even though the rocket launch cost was expensive, Hu Lai still gritted his teeth and launched hundreds of "Tongtian satellites"!
And now.
Indeed, as Lao Zhang said, if you want to realize your positioning as a "traveler space station", then send passengers to the space station for space travel, then the cost must be within a reasonable range.
And bear the brunt of the launch price must come down.
There is no need to think too much about this point, because SpeacX's Falcon 9 rocket has already embarked on a commercial road, and Phoenix Group now only needs to cross the river by touching SpeacX.
He frowned and said:
"'Returnable Rocket Technology' is really that difficult?"
"We have studied for so long and still can't grasp it?"
Lao Zhang shook his head slightly, then took out his mobile phone from his bag, and said:
"This matter involves more professional technology, I'll let Pang Dalong, the old Pang, explain it to you."
Pang Panglong was the founder of the "Zero Space" rocket. After "Zero Space" was acquired by the Phoenix Group, Pang Panglong became the head of the Phoenix rocket department.
"also."
After a while, Pang Dalong came to Hu Lai's office.
After Director Zhang briefly explained the situation, Pang Dalong introduced:
"Boss, the principle of 'recoverable rocket technology' is actually very simple, not to mention complicated."
Hu Lai was slightly surprised and continued to listen.
"For now, the mainstream launch vehicles in countries all over the world are multi-stage rockets."
"The mission of the first-stage rocket is to launch the rocket to the 'Karmen Line' (80-100KM above sea level), which is the dividing line between space and the atmosphere."
"After reaching this position, the first-stage rocket is useless. In order to reduce weight, the first-stage rocket will be separated, and then the second-stage rocket will be ignited. The second-stage rocket will carry the payload through the atmosphere at the fastest speed in the universe and enter space. "
"The shell and engine of the separated first-stage rocket will fall from a height of 80KM and land in the designated area."
"'Recoverable rocket technology', what actually recovers is the first stage of the rocket, which is the part that we often see on TV being ignited on the launch pad and then lifted off."
Hu Lai nodded, motioning for Pang Dalong to continue.
"Under normal circumstances, the first-stage rocket falls directly to the ground heavily, falling 80KM, and even the best materials are unusable."
"The 'recoverable rocket technology' currently used by SpeacX is actually to calculate the distance between the rocket and the ground, and turn on the reverse thrust of the rocket at a suitable place from the ground to counteract the gravity of the free-falling body, so that the first-stage rocket lands smoothly."
"Among them, whether it is the calculation of the rocket reverse propulsion, the calculation of the remaining fuel in the first-stage rocket, or even the attitude problem is a small problem, we can use a large amount of simulated data, or after the real rocket is launched. Improve!"
"So, the principle and technology are very simple."
"The reason why we can't achieve it now is: we don't have rocket engines with high reliability, small size, and high thrust-to-weight ratio like them."
"Rocket motor?"
Pang Dalong nodded:
"Yes."
"Rocket engine!"
……
PS: Thank you Hou Dabao for the reward of 100 coins
(End of this chapter)
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