MTL - Into Unscientific-Chapter 480 True Spiral Ascension

   The little Guo Li Hua mentioned 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.

   It’s just such an ‘ordinary person’ who won’t cause any splashes if thrown on the street, but his resume is glamorous and outrageous:

  In 2002, the number one scholar in science in a certain province in the south, with a score of 747 in the college entrance examination without additional points, graduated with a Ph.

  Started in 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.

  So 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 open space is paved with simple concrete, and the specifications roughly look 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 preparation 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 giant 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."

  All of them nodded suddenly.

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 say it is 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 device is an F-500 unmanned coaxial helicopter, and it is also the drone with the largest mass 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 UAVs also includes combat UAVs such as Rainbow-7 and Flying Dragon-2-a lot of knowledge is still heard at the Zhuhai Air Show in 21 years of.

  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. It belongs to the standard fighter structure.

   So in the area of ​​drones.

  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 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 Helicopters. It completed its 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 traditional helicopters may cause 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's okay to say."

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

   "According to the data you gave, the F-500 drone's single-body flight load is 250 kg."

   "But our gravity gradiometer has a mass of 400 kilograms. I'm afraid a drone can't pull it up?"

   "Oh, I'm about to tell you about this."

   Li Hua smiled lightly 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 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 has some understanding of some of these things.

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 decommissioned but not destroyed equipment or ammunition—such as some firepower wind power generation equipment, and the famous Type 67 wooden handle grenade, etc.

   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:

  Transport the stored emergency materials 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 functional requirement for the drones to be transferred—it does not need a particularly long battery life, but the load capacity must be high.

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

   Then under the operation of the staff.

   This 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, UAVs have much lower impact on the measurement environment, 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 reward icon.

  Only Ge Tongyou is responsible for the balance module Xu Yun has no background.

  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:

   "After 1 hour and 16 minutes, WorldView-3 will pass over our heads, and after 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.

  Currently, 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 two 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.

   This is the so-called commercial remote sensing company that released the photos of the Ahtubinsk National Test Flight Center in Astrakhan State.

  So many times national defense is not as easy as it says it is, and the investment in 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:

   "The main control department is all in place, and a final check is performed!"

   Ten seconds passed.

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

   "Report, the UAV power system 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!"

   Hear this statement.

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

   "Lift!"

   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 the second one up.

The third.

the fourth.

   and finally the fifth light

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

   Immediately after.

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

   At first, it took three or four seconds to make a lap, 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 rise slowly with the propeller.

  True Spiral Ascension.

   Another thirty seconds passed.

   In the eyes of everyone's expectation.

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

   One minute later.

  The drone carried a gravity gradiometer and stayed steadily 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, 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, center on the manhole cover on the ground, and simply circle around."

  The operator immediately stood at attention:

"receive!"

   Finish these.

   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 had a positive expression:

"clear."

   Then soon.

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

   While the drone is orbiting.

   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 allowed to see these data, there must be a clear gaze that has not been polluted by knowledge in everyone’s eyes

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

  The main display of the gravity gradiometer is called E, and the unit is 1E=10s. According to the 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:

   "Gong Li, 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.

  The Xichang launch base is surrounded by high mountains and forests, and the drainage facilities for thousands of people in the entire base can only go to one or two fixed integration points, so there are quite a lot of cockroaches in the base.

  Actually, 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 Biotech is a real 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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