Rebirth 99 to become a car giant.

Chapter 770: First in the world, Venus 9 was successfully launched

"Before a rocket launch mission, we often see the words 'opportunity launch' in media reports, which actually refers to the minimum launch conditions that meet the launch window."

Today, many senior executives from the Nanshan System came to the Northwest Launch Site.

As the person in charge of Venus 9, Zhao Siyu is personally responsible for explaining matters related to the rocket launch.

Because it is now close to the rocket launch, it is time to wait for the best launch window.

Taking advantage of this waiting time, Zhao Siyu felt that it was necessary for the group executives to have a good understanding of rocket launch-related knowledge.

This should be very beneficial for arranging some affairs of Daystar.

"The minimum launch conditions stipulate that the rocket can meet the mission requirements and at least some necessary conditions must be met, which are mainly divided into the rocket's own conditions and external conditions."

"The rocket must undergo various physical examinations before leaving the factory, and when it arrives at the launch site, its status must be confirmed again, just like athletes must do some warm-up exercises before a game to make them meet the conditions for playing."

"This is the first factor in choosing an opportunity. The rocket's own indicators meet the launch conditions."

Even if today's launch is successful, every launch in the future may not be successful.

"There are painful lessons in history about aerospace accidents caused by weather."

"Of course, there are actually many conditions that affect rocket launch, such as when to launch to facilitate ground observation, when to launch to facilitate ground monitoring and control, when to launch to facilitate the landing and recovery of the spacecraft, etc."

"The width of this launch window varies greatly depending on the type of satellite. Low-Earth orbit satellites generally have a 'daily window' and will have the opportunity to launch every day."

So there seems to be no harm in doing some psychological construction for everyone.

When Zhao Siyu said this, he hesitated for a moment, wondering whether talking about those bad cases would give everyone an unlucky impression.

"The impact of meteorological factors on rocket launch cannot be ignored, but as long as complete plan preparations are made before launch, meteorological observations are made in advance, and the final launch window is determined based on weather conditions, we can effectively avoid adverse weather effects on the launch mission. Impact."

So he gave the answer without any thinking.

This is a level that no other company can achieve.

Now that we have arrived at the launch site today, let’s get to know it better.

Xia Qingqing also came to Cao Yang at this time.

"At the beginning of the design, our designers will design the rocket itself to be rain-proof, anti-electromagnetic interference, and anti-strong wind to reduce the impact of environmental factors on the rocket."

"Rocket launch is a high-risk and complex system engineering."

Zhao Siyu is well aware of some important events in the history of rocket launches.

As a star figure among various companies in the Nanshan Group, Xia Qingqing is currently very popular.

After all, Honor Technology contributed more than 200 billion in profits to the group last year.

This is obviously not good for the continued development of Venus 9 in the future.

"Our Venus 9 has completed all relevant confirmations and is ready for launch."

Even except for Xingchen Automobile, the turnover of other companies has not reached more than 200 billion yuan.

"Probes that need to rendezvous with extraterrestrial objects such as planets, asteroids, and comets have a yearly window, which means they only have a launch opportunity once a year or even several years."

"These are all issues that need to be considered comprehensively."

"Generally speaking, the recent launch missions of our Venus 9 are determined around the development of the Starlink satellite system. These satellites are all low-Earth orbit satellites. In theory, there are suitable opportunities every day."

"On March 1987, 3, when the United States launched a high-value military communications satellite using a Centaur launch vehicle, it encountered a thunderstorm and lightning struck the rocket, causing the launch to fail."

"The external conditions for rocket launch are more complicated."

When Zhao Siyu saw that Cao Yang was listening carefully, he became even more enthusiastic about the introduction.

Zhao Siyu then added an explanation.

A few big cases can be cited casually.

"Our Venus 9 is undoubtedly very good in this aspect."

However, he is not sure whether this launch will be successful.

"The value of each type of rocket that can resist environmental factors matches the magnitude of the rocket's resistance during the design process."

"Among many factors, high-altitude wind has a more prominent impact on launch."

After all, when we talk about launching at the right time every day, most people don’t know exactly what factors should be combined to launch at the right time.

Thinking of this, Zhao Siyu continued: "On January 1986, 1, the Space Shuttle Challenger was launched despite the severe cold weather and the warnings of rocket engineers. The rubber ring on the booster was hardened and damaged by cold, resulting in propellant leakage, The space shuttle exploded, killing seven astronauts."

So as not to give everyone the impression that rocket launches are too troublesome.

"Before each launch, the high-altitude wind on the launch day is measured and forecasted, and the rocket's flight trajectory is optimized and adjusted based on the measured wind field data to avoid the rocket's load exceeding the allowable range of the rocket when flying at high speed in the wind field."

For Zhao Siyu, this question is obviously a scoring question.

"Mr. Zhao, can you have a more accurate answer to this launch window? How long does it usually take to find this window?"

"Among various environmental factors, what has the greatest impact on the rocket's launch mission?"

"The lunar probe has a 'lunar window' and has the opportunity to launch every month, but there are only a few suitable days."

Cao Yang asked a question that many people were curious about.

"The natural environment is changeable and uncontrollable. Once these factors exceed the expected standards for launch, they may cause damage to the rocket body and affect the success or failure of the rocket mission."

"It's just that this is the first launch. We are more cautious and fully consider various conditions such as wind speed, cloud cover, temperature, etc., and choose the most suitable launch window as much as possible."

Zhao Siyu explained this, and the people present had a better understanding of the rocket launch situation.

At least not to the point where his eyes darken when he mentions rocket launches, and he has no idea what to focus on.

"Mr. Cao, the best launch window will be in ten minutes. We can go to the console to watch. The effect will be better."

Zhao Siyu is a frequent visitor to the Northwest Launch Site.

Even before, this launch site was under their jurisdiction to a certain extent.

So when he gets here it's like he's back home.

"Come on, let's go to the console."

Cao Yang knew that there were many people from other units coming to participate in the launch event today.

I almost want to go over and chat with everyone, and then watch the official launch of Venus 9 together.

……

"Mr. Cao, your Daystar No. 9 is quite spectacular."