Into Unscientific

Chapter 480 True Spiral Ascension

The little Guo that Li Hua was talking about was a man in his thirties, whose full name was Guo Ziyang.

Guo Ziyang wears a parted hair in the same style as Kunkun. He has a thin body and looks about 165, and his appearance is also ordinary.

But it's just such an "ordinary person" who wouldn't cause any splashes if he was thrown on the street, but his resume is glamorous and outrageous:

In 2002, he was the champion of science in a certain province in the south. He scored 747 in the college entrance examination without additional points. He graduated with a Ph.D. from the School of Astronautics and Astronautics of Shuimu University.

from 2017.

Guo Ziyang gradually participated in the research and development of various commercial satellites, and even served as the deputy chief engineer of the project.

For example, 46 Beidou navigation satellites, Asia Pacific 6D, Katz, Apocalypse 06 satellite, etc., all of which have Guo Ziyang.

Therefore, Guo Ziyang is not so much Li Hua's assistant, but more like Li Hua's successor, who was brought by his side to practice.

After receiving Li Hua's instructions.

Guo Ziyang quickly said yes, then turned and left the warehouse.

Li Hua ordered the staff to work together to load the assembled gravity gradiometer onto the loading truck, and led a group of people out of the warehouse to a very open space outside.

The pavement of this vacant lot is paved with simple concrete, which roughly looks like a 100x100 square.

"Dr. Xu, Professor Huang."

After arriving at the open space, while there was still time, Li Hua introduced the use of the open space to everyone:

"This open space is the standby point for the rocket launch vehicle. We currently have two methods before the rocket launch, one is horizontal transfer, and the other is vertical transfer."

"Vertical transfer takes up little space, but it is usually used for large equipment, such as the 70-meter-plus monster of Shenzhou XIV."

"The rockets of the Long March series are generally 20-40 meters long, and they are usually transported horizontally, so such an open standby point is naturally needed."

Then everyone suddenly nodded.

I see

After a while.

Guo Ziyang drove a four-wheel tractor slowly from a distance, and soon stopped in front of everyone.

This tractor looks like it should have been modified, the power is very strong, and there is no cover on the loading plate, so you can see the things on the car at a glance:

It was a medium-sized piece of equipment that looked a little weird. At the bottom was a landing gear. On the shelf was an off-white flat metal object with a length of about three meters and a height. Or a thickness of half a meter. On the top were two The propeller is about five or six meters.

You can call this thing a helicopter, but its size is too small to enter people at all.

Not to mention the cab or something, there is not even a hatch.

But it is too big to call it a drone, and its appearance is completely different from the well-known drones.

Seeing that everyone was at a loss for this device, Li Hua called the staff to assist Guo Ziyang to remove it, and introduced:

"Professor Huang, Dr. Xu, let me introduce you."

"This equipment is an F-500 unmanned coaxial helicopter, and it is also the largest drone that can be carried by a single unit in our country."

"It has a length of 2.3 meters, a width of 1.2 meters, a height of 1.8 meters, a rotor diameter of 6 meters, a practical ceiling of 5,000 meters, and a mission load of up to 250 kilograms."

Xu Yun was taken aback for a moment:

"Drones?"

Although he worked in Chengfei for several years in his previous life, he was mainly responsible for the research of theoretical physics. Plus some engine-powered assistance items.

So be honest.

He doesn't have a deep understanding of the airframe, let alone a model outside the project like a drone.

In addition to DJI Niucha, his knowledge of drones also includes combat drones such as Rainbow-7 and Flying Dragon-2-a lot of knowledge is still heard at the Zhuhai Air Show in 21 years arrived.

Although combat drones are also called drones, their appearance has no similarity to traditional drones.

For example, the Rainbow-7 model.

Its fuselage is 10 meters long, with a wingspan of 22 meters and a cruising altitude of 13,000 meters, which belongs to the standard fighter structure.

So on the drone side.

If you point to a small aircraft and say it is a self-destruct drone, or point to a large aircraft and say it is an unmanned fighter jet, Xu Yun is actually acceptable in cognition.

But the current F-500, which is not too big or too small, really surprised him.

Perhaps sensing Xu Yun's curiosity, Li Hua walked to the side of the F-500 in a few steps, and gently patted its metal casing:

"Dr. Xu, this F-500 unmanned coaxial helicopter is produced by Beihang Helicopter Institute. It completed the autonomous flight test as early as 2017."

"If you search for keywords on the Internet, you will also see the news that Lucheng used it to complete the transportation of heavy tower structural parts in December 2019."

"So this is a very mature airframe. In our plan, we are going to rely on it to load the gravity gradiometer into the sky."

Xu Yun's eyes continued to stay on the fuselage for a while, and he nodded thoughtfully.

Originally, he was still pondering whether this gravity gradiometer should be taken up into the sky by a light helicopter, but he did not expect Li Hua to give him such an answer.

In terms of process.

With the assistance of the F-500 Unmanned Coaxial Helicopter, many of the problems that can arise with traditional helicopters no longer exist.

And just when Xu Yun was feeling emotional.

Huang Yuting on the side suddenly thought of something, and asked Li Hua aloud:

"Wait, Li Gong, I have a question I want to ask again."

Li Hua turned around:

"But it doesn't matter."

Seeing this, Huang Yuting pointed to the gravity gradiometer at the side and said:

"According to the data you gave, the single flight load of this F-500 drone is 250 kilograms."

"But our gravity gradiometer has a mass of 400 kilograms. I'm afraid it can't be pulled up by a drone, right?"

"Oh, I was going to tell you about this."

Li Hua smiled slightly when he heard the words, pointed to the tail of the drone, and explained:

"Don't worry, Professor Huang, the drone in our base has been modified by magic, and its load capacity has been greatly upgraded."

"Theoretically, as long as the object does not exceed 600 kilograms, it can be easily carried into the sky-this is a special magic modification for the situation of our launch base. After all, the functions of our base are somewhat special."

"Of course, this kind of magic modification sacrifices the flying height and flight time limit of the airframe. After the magic modification, the flying height of the drone is only 3000 meters, and the single flight time is often reduced from five hours to about two hours."

Huang Yuting sized up the drone following Li Hua's direction, and noticed that the length of the fuselage was indeed longer than what Li Hua reported, so she nodded slightly:

"I see."

As the daughter of Professor Huang Danian, although Huang Yuting has not entered the national defense system, she knows some things about it.

for example

In addition to launching biubiubiu rockets into the sky, domestic satellite launch bases also have a special mission, which is to serve as a storage point for special materials.

Some of these special supplies are emergency supplies, and some are equipment or ammunition that have been decommissioned but not destroyed - such as some firepower wind power generation equipment, and the famous Type 67 wooden handle grenade and so on.

At the same time.

The plate in this area of ​​Sichuan Province is quite special. Once some accident occurs, the Xichang Satellite Launch Base will temporarily take on another task:

Transship the emergency supplies in reserve to support various places.

The transfer point of the base is the nearby city of Xichang, which is only more than 60 kilometers away from the base. Therefore, there is a requirement for the function of the transfer UAV—it does not need a particularly long battery life, but the load capacity must be high.

Therefore, the modified version of the F-500 came into being.

Then under the operation of the staff.

The F-500 unmanned coaxial helicopter quickly and smoothly came to the ground from the vehicle board, and the gravity gradient meter was fixedly connected to the bottom.

Looking at this combination of machine and instrument, Xu Yun's gaze was filled with excitement and anticipation, but also a hint of worry.

It was said above.

Compared with traditional helicopters, the impact of UAVs on the measurement environment is much lower, especially in near-ground conditions.

But on the other hand.

This combination is bound to be far inferior to traditional helicopters in terms of balance performance, so the requirements for the balance module of the gradiometer itself are very high.

Throughout the design process of the gravity gradiometer.

The measurement module was created by Xu Yun, and Huang Yuting's structural design also conforms to the award diagram.

Only Xu Yun, the balance module that Tongyou Ge was in charge of, had no idea.

Although he has respect for old astronauts like Ge Tongyou, he has no experience with them in the project after all, so it is normal to feel worried.

But Ge Tongyou didn't understand Xu Yun's thoughts. At this time, the retired and re-employed little old man checked the last link himself, returned to Li Hua, and nodded to Li Hua:

"Old Li, everything is normal, you can take a test flight."

Li Hua hummed to him, expressing that he understood.

At the same time, he turned his wrist and glanced at his watch:

"11:17 am. Xiao Guo, when will the next reconnaissance satellite bypass the base?"

Guo Ziyang took out a tablet-like device from his body, fiddled with it a few times, and quickly said:

"In 1 hour and 16 minutes, WorldView-3 will pass over our heads, and in 2 hours and 11 minutes, Skysat will pass over Xichang."

Li Hua breathed a sigh of relief, there was plenty of time.

At present, the time for most satellites to circle the world is about 90-120 minutes, but the interval between taking pictures is not necessarily this number.

At present, the satellite with the highest precision in the world is the keyhole across the sea. That is KH-12, the highest resolution is as high as 0.1m, and the cost is 2 billion US dollars.

This cost is equivalent to 2 055 large drives, or 2/3 Shandong ships, which are also our main satellites for "observation".

By the way.

The only institution in our country that is capable of competing with KH-12 is Changguang Institute, and it produces a large number of practical results every year. As a result, when the news that Changguang’s scientific research funding exceeded 3.3 billion Huaxia coins came out, there were a lot of It is also quite frustrating that people are criticizing the waste of funds

And except for the KH-12.

There are also a lot of "commercial" satellites passing over our heads every day, especially in third-tier places like Sichuan Province.

For example, the WorldView-3 satellite mentioned by Guo Ziyang is a reconnaissance satellite belonging to DigitalGlobe, and the resolution of satellite photos is 0.3 meters.

Skysat belongs to the Planet company, and the resolution of satellite photos is 0.5 meters.

That's right.

Planet Corporation.

It was this company with the so-called commercial remote sensing that released the photos of the Ahtubinsk National Test Flight Center in the Astrakhan State of Maoxiong.

Therefore, in many cases, national defense is not as easy as it sounds, and the investment in both manpower and financial resources is not small.

The line of sight returns to reality.

After confirming that there were no satellites flying across the sea in a short period of time, Li Hua immediately issued instructions:

"All the main control departments are in place, and a final check is performed!"

Ten seconds passed.

As the gravity gradiometer moved out of the main console of the warehouse together, several voices sounded successively:

"Report, the power system of the drone has been inspected!"

"Report, the sensor readings of the gravity gradiometer are normal, and the photosensitive offset is six zeros!"

"The power has been turned on, and the two impulse units of 405 and 177 are normal!"

I heard this.

Li Hua took a deep breath, raised his palm, and ordered decisively:

"Launch!"

buzz buzz --

With the order issued.

The gravity gradiometer under the drone first heard a start-up sound, and the indicator light at the bottom quickly lit up.

Then there's the second one up.

The third.

the fourth.

and finally the fifth light

The rule that five fingers can't do it doesn't seem to apply today.

Immediately afterwards.

The propellers of the F-500 unmanned coaxial helicopter began to rotate slowly.

At first, it took three or four seconds to circle, and then it became faster and faster, and in the end there was only an afterimage left.

at the same time.

With the activation of the entire power system, the fuselage began to slowly rise with the propeller.

True Spiral Ascension.

About thirty seconds passed.

In the eyes of everyone's expectations.

The bottom of the gravity gradiometer has left the ground, and the distance from the ground is getting bigger and bigger

in a minute.

The drone carried a gravity gradient meter and stayed in the air about 60 meters above the crowd.

But seeing this situation, Li Hua, Xu Yun and others were not too excited.

The F-500 with a load of 600 kg dragging a gravity gradiometer of 400 kg can only be said to be a matter of course. The real test lies in the measurement of data.

Afterwards, Li Hua glanced around a few times, then suddenly pointed to the open space in the southwest direction, and said to the drone operator:

"Xiao'an, take the drone to that direction, take the manhole cover on the ground as the center, and simply circle around."

The operator immediately stood at attention:

"receive!"

That's all.

Li Hua turned around again and said to Xu Yun:

"Dr. Xu, after the plane arrives in the area, let's measure the situation on the ground first."

Xu Yun also straightened his expression:

"clear."

Then soon.

Under the guidance of the operator, the drone hovered in the direction Li Hua pointed, and quickly circled around.

And at the same time as the drone was circling.

On the measurement screen of the gravity gradiometer, multiple complicated tables gradually appeared, and some data was beating on each table.

If the readers of Xu Yun's previous life were to see these data, there must be a clear look in everyone's eyes that has not been polluted by knowledge

However, to people in the industry like Xu Yun and Huang Yuting, these data are extremely clear.

The main display value of the gravity gradiometer is called E, and the unit is 1E = 10 s. According to different characteristics of different objects, different E values ​​will be displayed on the screen.

ten minutes later.

Da da da--

Several sheets of paper slowly appeared at the exit of the printer.

Zhang Han, who was in charge of assisting Xu Yun, quickly took these reports and handed them to Xu Yun:

"Dr. Xu, the summary report is out."

"Thank you."

Xu Yun thanked her briefly, took the report and read it.

After a while.

Xu Yun raised his head again, and said to Li Hua who looked expectant and nervous:

"Li Gong, according to the detection of the gravity gradiometer, the piece of ground you are referring to should be an integration point of the drainage system of the base."

"There are a total of six pipelines converging at this integration point, and the top pipeline comes from a direction of 26° east by south."

"At the same time, there is a fracture under the manhole cover. This shadow with a high sedimentation coefficient should be a water pump? If it is in the wild, it may be considered a coffin."

Then Xu Yun paused, and his eyes stayed on one of the signal integration diagrams for a few seconds:

"In addition, we also detected some small activity gradient information. If nothing else, it should be a cockroach."

"In this regard, I suggest that you choose our company's disinfection products, because of your aversion to cockroaches. Ahem, to support the cause of national defense, I can provide products to our base for free."

Li Hua's eyes suddenly brightened.

There are many mountains and forests around the Xichang launch base, and the drainage facilities for thousands of people in the entire base can basically only go to one or two fixed integration points, so there are quite a lot of cockroaches in the base.

In fact, when Xu Yun first arrived at the base, Li Hua was thinking about how to discuss the disinfecting of cockroaches with Xu Yun.

After all, Huadun Biotechnology is a genuine scientific and academic company, and with Xu Yun's current contribution, it is completely compliant in terms of political review

Of course.

This idea just flashed in Li Hua's mind, and he quickly put his energy back on the business for the time being.

That is.

The test results mentioned by Xu Yun.

It is exactly the same as the situation underground in that area!

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