Colonel Li is an expert who is proficient in technology, Qian Zhonghua is also a newly promoted technical cadre, and the idea of the Stratoplanar Prowler project itself is also very simple, and it does not involve any quanta at all, and the concept of neutrinos is very easy to understand, Wang Yinan said it simply, and they both understood.

How else to say that system design is a high-IQ job, not everything is used the latest and best, the things made are the best, when Mao Zi used stainless steel to build the same can fly Mach 3, 30,000 meters of aircraft, the rice country was shocked, this is the wisdom of system design.

The huge contrast between the low cost and high performance of the Stratoprowler program with the simplest technical solution and the least simple performance indicators fully illustrates the ingenuity of the scheme itself.

The core of Wang Yinan's new program lies in the first to put forward the concept of long-term cruising UAVs, why Mi Ge would rather use balloons, and no one proposed a similar aircraft program, this is because according to conventional thinking, aircraft need to take off and land, and the frequent take-off and landing of UAVs will bring great complexity to the whole system, think about hundreds or even thousands of UAV take-offs and landings per day, it is almost impossible if there is no problem, and where to find the take-off and landing sites of these aircraft, when the UAV lands, How to switch communication networks, how to run energy consumption, etc.

These problems are enough headaches just to think about, so the Stratoprowler program can only succeed if the drone can achieve self-consistent operation that does not rely on external energy sources.

Responsibility,Colonel Li asked Wang Yinan to go through the whole ppt again,For any possible doubts in it,Wang Yinan gave a satisfactory explanation,Of course,In the end, there is still one question left,Dongfanghong's transponder,How much can it cost?

Colonel Li volunteered to take over the job, "Dongfanghong Co., Ltd., I'll communicate", he swore and said,

"I've dealt with their company before, and I still have a little friendship, so I must find a way to get them to give the lowest price."

Colonel Li hurriedly went to contact Dongfanghong, and Wang Yinan secretly complained to himself, this product will not feel that there is oil and water to be fished.

Seeing that Colonel Li and Qian Zhonghua couldn't raise any questions about the Stratoplanar Plan, Old Man Qian happily loaded Wang Yinan's PPT, "I will arrange an expert review as soon as possible, and then I will have to trouble Yinan to explain and answer questions to the experts", Qian Lao said,

"No problem", Wang Yinan said confidently, presumably it was just going through the motions, Wang Yinan has seen a lot of this kind of thing.

However, Wang Yinan's self-confidence was hit hard for the first time after a few days, obviously, many things are not simply measured by the pros and cons and the technology itself, and Wang Yinan also underestimated the price to be paid to enter certain fields.

In the conference room of a hotel on the outskirts of the imperial capital, Wang Yinan had just finished introducing the stratoprowler plan to the participating experts, and he thought that he had played a good role, after all, if it was counted from Chief Master Yang, it was the third time to explain.

It's a pity that this is not Qian's hometown, let alone his home field, in a classroom at Imperial Capital University, there are not even brainless fans who can only shout "a man's life", Wang Yinan has been looking forward to it for a long time, but there is still no applause.

Then, unexpected artillery fire poured in from unexpected directions.

The first to make a mistake was an expert that Wang Yinan never expected, a senior engineer of the Huaguo Environmental Protection Bureau.

"For such a large project, have you conducted an environmental assessment, I see that your drone is running in the air at more than 20,000 meters, and there is no shield between this distance and the ground, which is equivalent to moving the base station on the ground to the air, and the impact of radiation on the human body, I think you have not considered it at all", said a senior engineer from the Environmental Protection Bureau.

Wang Yinan was a little dizzy, where is this, "Even if according to your understanding, the base station is moved to the air, hundreds of thousands of square kilometers, how many base stations are there, adding a distance of more than 20,000 meters, it shouldn't be nothing."

"That's different, the ground is blocked, and you have no obstruction in the air at all", people say so, and there is really nothing wrong with it,

"No matter how you explain it, the people's health must not be slackened in the slightest, so our environmental protection department will not agree to launch such a project without a scientific and detailed environmental assessment," said a comrade from the Environmental Protection Bureau.

Wang Yinan almost didn't burst into foul language, "Why didn't you see that you wanted the satellites in the sky to come to you to do environmental assessments?"

However, it seems that the opposition of the Environmental Protection Bureau is not so strong, and listen carefully to what this comrade means, "I opened this mountain, I planted this tree, and for such a big project, if you don't pay a little for environmental assessment, it will be too much to say."

Wang Yinan swallowed this breath, "We can arrange an environmental assessment as soon as possible, and I hope that the comrades of the Environmental Protection Bureau will strongly support it when the time comes."

The next to question is the expert in solar power generation.

"I would like to ask Professor Wang, what is the current power generation of solar panels?" ,This tone is not good when you hear it.,You're an expert in solar power generation.,Will you know?

Wang Yinan thought about it, but still reported a relatively conservative value, "about 200 per square meter",

The solar energy expert shook his head, "You are the ideal value, first of all, on the high-altitude drone, the working conditions are different from the ground, what kind of energy conversion efficiency does the commonly used polysilicon have under such working conditions, and a lot of experiments are needed to have data, and you can't pat your head",

Wang Yinan has a sense of immediacy after many years of being reprimanded by the teacher in the middle school classroom, "Why can't I pat my head, I only know that most of the problems that affect the efficiency of solar panels are heat dissipation problems, and the low temperature of the stratosphere is constant minus 55 degrees, so I don't believe that the energy conversion efficiency will be lower than that of the ground."

Although Wang Yinan is 99.9999% sure, the efficiency will not be lower than that of the ground, but what people say is right, it takes a lot of experiments to determine, what if the solar panels do not work at low temperatures?

"Secondly, the ideal conversion efficiency needs to ensure direct sunlight on the panels, so I would like to ask Professor Wang, how do you install the solar panels of the drone to ensure that sunlight can always shine vertically into the panels?" After speaking, the solar expert smiled proudly,

Wang Yinan admits that this point is indeed ignored before, "even if the conversion efficiency is lower than that of direct radiation, the solar radiation intensity of the high altitude itself is much greater than that of the ground, so I think at least, these two conditions can cancel each other out", Wang Yinan is not a vegetarian,

"These require a lot of actual data, I mean, Professor Wang's plan is too optimistic, it is very likely that the output power of the battery panel will not be able to maintain the normal flight of the drone during the day, let alone charge the lithium battery at the same time."

"Yes, I remember there was a solar-powered airplane called Solar Impulse, which is said to have a wingspan of more than 70 meters, cost more than 17,000 photovoltaic cells, and cost more than 200 million US dollars," said this person

Experts from the Commission of Science and Technology also came up and gave Wang Yinan a knife.

"The latest foreign technology took 200 million US dollars to achieve a flight that does not rely on any external energy source, why does Professor Wang think that he can achieve it with 2 million soft girl coins?" ，

Wang Yinan didn't bother to argue, big brother, can you not confuse the concept of manned aircraft and unmanned aircraft, Solar Impulse has installed a full set of electronic equipment in accordance with airworthiness standards, plus two pilots, I don't even have a cockpit, so I send hundreds of kilograms of things up, is it so big, not to mention, does Solar Impulse have such a high-efficiency superconducting motor as me.

However, today's atmosphere is not right, it is very wrong, Wang Yinan has not participated in this kind of review meeting before, and the role of judge or judge has been played. In the vast majority of cases, it is hello, hello, hello, everyone, and occasionally there is a fierce argument, and there are indeed positive and negative opinions.

Like today, Wang Yinan is really the first time to encounter it, there must be something wrong with it.

Wang Yinan looked around, most of the people listened carefully to other people's speeches, and thought about something from time to time, this situation is not quite right, Wang Yinan has participated in several review meetings before, except for one or two direct stakeholders, or the host of the meeting, other experts are very relaxed.

Everyone is chatting, or drinking tea, and when it is their turn to speak, they will not say a few words without pain, even if they don't agree with it, they will try not to offend people as much as possible, which is the correct opening posture of the judges.

Wang Yinan is a little confused, when will the experts in our country become models of adhering to the truth and not being afraid of power, not to mention, I still seem to be some distance away from power.

"I'll also say a few words of immature thoughts", before Wang Yinan could figure out what was going on, another cannon fired,

"I think the safety issue, Professor Wang Yinan still thinks too simply", this seems to be an expert in the aerospace port,

"As we all know, China has a large number of satellite launch missions every year, but what you may not know is that we also have a large number of sounding rockets, sounding balloons and other subspace flight missions every year, which will exceed the stratosphere at an altitude of 20,000 meters above the ground, that is to say, hundreds of UAVs in the stratosphere hovering over China will cause very big safety risks to these normal scientific research tasks."

"And what's more serious is, how do you ensure that the flight altitude of the drone is above 20,000 meters, in case the altitude of one or two drones is reduced to about 10,000 meters, it is a fatal threat to the normal flight of civil airliners."

This is a typical crime of desire, which is wordless, and it is no problem to scare a layman, it sounds quite like it, but it is actually bullshit.

Think about it, how many civil airliners are flying in the sky over China every day, let's make a simple estimate, the total number of aircraft in service of all civil aviation companies in China, plus the foreign aviation planes flying through China, is about 3,000, and during peak hours, at least half of these 3,000 are in the air, that is, 1,500 planes.

This is not counting military aircraft, that is to say, at the same time, whether it is civil aviation, air force, aerospace or sounding launch, we have to face these 1,500 civil airliners that are constantly changing positions and even altitudes, and add another 100 UAVs that are spinning in place and the altitude remains the same.

Wang Yinan didn't want to care about what the damn judges would do, it wasn't his style to be submissive, he stood up and was about to spray,

I saw Colonel Li of the Science and Technology Commission and a man in a suit hurriedly walked in, Colonel Li must be on his side, Wang Yinan pressed the pause button for himself,

Could it be that things are still turning around? ·