Chapter 1766: Big and small satellites

Laser weapons are beautiful to say but very difficult to realize. Just like electromagnetic catapults, it is difficult to mature. That thing, when a laser rangefinder is almost the same, you want to be powerful enough. Burn directly through the enemy, how much power is that? The nuclear explosion generator is pretty much the same.
Qin Guan didn't deliberately cover it up either. When they inspected their own laser tank, they knew that this thing was not killing people, but destroyed the enemy's sighting equipment.
At that time, they would be disappointed and serious. After all, they did not deceive them, and they are at that level now.
How could the progress of our own laser be more powerful than that of the Eagle Country and the Bear Country? It's only progress in some areas.
Qin Guan ended his visit to the Hughes Company and led the team to live in a nearby hotel, and everyone began to discuss the next step.
"Hughes is the largest aircraft company. In addition to Hughes, there are many other companies that develop satellites. We can make more rounds, investigate and investigate, and find new potential customers." Wang Lao said: " In fact, McDonnell Douglas also produces satellites."
Almost all aerospace companies have invested in aerospace. General Dynamics and the like are also developing satellites. Eagle Country has a strong scientific research level. It is here that multiple teams in China need to tackle key technical problems and jointly develop a project. As for Eagle Country, there are many companies, each of which engages in their own, and then they can compete with each other.
McDonnell Douglas? Qin Guan felt that he was a bit low-eyed, and after seeing so much, he forgot the nearest neighbor!
That's hard to say. Tomorrow we will go to McDonnell Douglas. We are all our old owners. It is easy for everyone to communicate.
"We have gained a lot today." Wang Lao continued: "We can find that the satellites in the world have begun to develop in two directions."
China has always been working behind closed doors. Until now, geosynchronous communication satellites have just been realized. Looking at the West, people have already moved forward in great strides. This time they came out and they were deeply moved.
"On the one hand, the capacity of satellite communication is increasing, and the development of heavy satellites, such as the HS-601 of Hughes, weighs 3.6 tons. In the past, this was almost unimaginable. The same satellite has increased weight. The bigger, the higher the cost, but it is still the most cost-effective, better than two satellites, right? Another trend is to develop towards single-function, low-cost small satellites."
These two trends are not contradictory. For some satellites, the larger the need, the better. Some satellites only need simple functions, and small satellites can do it.
For example, reconnaissance satellites. With the development of technology, the circuits on the reconnaissance satellites are becoming smaller and smaller, and the lenses are gradually becoming smaller. In this way, the satellite does not need to be that big. It was originally the size and weight of a satellite. You can do four or five, which can increase the scope of investigation, which is much better than the original large satellite.
So? Qin watched the prince, knowing that he still had something to say.
"So, we are grateful to President Qin. The technical route given by President Qin is correct. The new generation of rockets we are currently developing has greatly improved the carrying capacity. In the future, we can launch heavy satellites. We can use a new generation of rockets. Launched."
The technical route given by Qin Guan is to develop a rocket with a larger core stage, using a liquid oxygen kerosene engine, which can be directly put into orbit with a single pole, or a one-and-a-half stage. Such rockets have now begun intensive research and development. , There are more heavy launch needs in the international market, and we can also meet them.
There are heavy-duty satellites, but what about lighter satellites?
It is not cost-effective to use existing rockets to launch light-weight small satellites, and this need has begun to appear in the international market.
"Where is the little satellite?" Qin Guan said to the old man.
There was a smile on Wang's face: "Mr Qin, you still need your guidance in this regard."
Qin Guan was stunned for a while. He pointed to the liquid oxygen kerosene engine and the new generation of rockets. It was because he knew the history. If you want to realize manned space and space stations, you must have a large thrust rocket. But, if you talk about small satellites, I really haven't considered it yet.
When the White Elephant State released satellites, it was not ashamed. It launched 104 satellites in one go, and then advertised how advanced its technology was. In China, it was only one stone with five stars.
That's right, launching small satellites can have multiple stars with one arrow.
"We can launch small satellites with one arrow." Qin Guan said: "A single satellite is not of great mass, but we carry a few more and launch them together. This is fine. Of course, this requires us. The ability to change orbit in outer space, I believe, is not difficult for us."
With an advanced electronic computer system, it is easy to calculate the orbit. Qin Guan said this, and Wang Lao also agrees: "Yes, I think so too. We can use existing rockets to launch more than once. A few coins are still profitable, but this can't be long."
This kind of technology can be used, but it may not happen by coincidence. What if there is only one customer? The second customer can't wait, but is this customer anxious? How to do it?
It is best to have a special rocket to launch. What kind of rocket can be used?
"Solid rocket!" At this time, Qin Guan had already thought of it.
The Long March series of carrier rockets are a big family in later generations. From the Long March No. 1 to the Long March No. 11.
The Long March 11th is dedicated to this job.
The biggest feature of solid rockets is convenience. They are the same as ballistic missiles. They used to be liquid missiles. How long does it take to prepare for one launch? Just refueling is a headache, but solid missiles are not. They can be fired when supported!
Ballistic missiles and rockets are in the same line. The Long March 2 rocket came from Dongfeng-5, and now the Dongfeng 21 is mature, and the Dongfeng 31 is being developed. On the basis of these missiles, a solid carrier rocket is also developed. possible.
The solid rocket has a higher specific impulse, but its thrust is small, and it is simply the most suitable choice for the mission of launching a small satellite!
"Mr. Qin, your idea is great." Mr. Wang understood at once: "If we want to use solid rockets, at least a four-stage rocket is required to complete the mission. After we go back, we can proceed first. Preliminary research!"
Four-stage rocket, so many?