A small spacecraft with too much acceleration is very flexible, but it is completely unsuitable for humans and can only be used as a drone.
Xu Yunjin suddenly felt a little embarrassed. In fact, he was the one who asked Professor Luo Meng to study this small space shuttle, but now it seems that it is not of much use.
This space shuttle is small in size, uses a lot of lightweight metal, and sacrifices some performance to achieve ultra-high maneuverability.
In his concept, combat spaceships should be like fighter jets, and high maneuverability is always better.
But he forgot that high mobility requires high acceleration. Human beings' physical fitness is not up to standard, and they cannot maneuver even if they want to.
Now, it is no longer the era of individual heroes. The power of individual bodies is too small compared with machines.
"...it's not useless."
Yu Yifeng looked at the various parameters on the screen and sighed: "Actually, it's pretty good. Its individual combat capabilities are pretty good and the cost is pretty cheap. If it's unmanned, the life support device and other things will be removed."
Miscellaneous things can be made at a lower cost and can be manufactured in batches."
"... From a certain perspective, high maneuverability is always good. It's good to use it as a drone."
"Also, if our life sciences can go further and strengthen the human body, then this kind of spacecraft can be used. Like titanium skeletons, strengthened blood vessels, strengthened internal organs, etc. After all, drones are easy
If it is interfered by electronics and controlled by humans, there will be no such problem."
Yu Yifeng said softly: "In other words, using a large amount of perfect hormone can also give birth to a group of super soldiers..."
Xu Yunjin was stunned. This was something he had not expected. Superhumans could instantly withstand 30 times the gravity of the earth! The two discussed it privately, and Yu Yifeng revealed a little about the progress of Perfection. A willpower potion has appeared.
Start animal experiments and so on.
Then, he turned back and said, "Mr. Luo Meng, are there any other models?"
Professor Luo Meng nodded quickly: "Of course!"
Their entire team had been studying for so many years, and it was impossible to just come up with this small space shuttle that could only carry two people. He clicked on another document on the screen, and a spectacular large model jumped out.
He pointed with his finger and said, ""This is an enhanced version of the "Victory" spacecraft. I named it Aircraft-001, or A-001 for short. It is both a combat spacecraft and a cargo ship."
"It is about 30 meters long, with a width and height of about 18 meters. It uses a large amount of light metal and has a rated load-bearing mass of 640 tons."
"The maximum speed is about three hundred kilometers per second, which is about one thousandth of the speed of light. However, the overall maneuverability is not as good as that of a small space shuttle. To reach this maximum speed, it will take six hours of push time."
This is a real spaceship. Because it is large in size and carries a lot of energy, its maximum speed is faster than a small shuttle.
It uses the latest ion engine and is much faster than the previous "Victory" spacecraft. If this spacecraft is allowed to travel between the earth and the moon, it will only take a few hours and less than half a day.
"A-001 should be the main model in the future. We can also modify it slightly to form various variants." Dr. Luo Meng turned the computer screen towards Yu Yifeng and others!
Yu Yifeng looked at the various parameters on the screen and studied them carefully for a long time. Including the A-002, A-003 and other models at the back, they were all variants of A-001, but he was still not satisfied!
The speed of Green Light Man's drone has reached one-thirtieth of the speed of light. Now humans can only reach one-thousandth of the speed of light. Of course, he is a little dissatisfied.
He asked: "Didn't it use the latest ion engine? How can it only reach this speed? By the way, what technology does the Green Lantern Man's drone have? Does it have controllable nuclear fusion technology? Why does it fly so fast?
So fast?"
Dr. Luo Meng was stunned. He explained: "The Green Light Man's drone uses a similar ion engine, but the energy is still nuclear fission energy... Although it is strange, this is the fact..."
"The reason may be that... it is difficult to miniaturize controllable nuclear fusion technology." Speaking of this, Dr. Luo Meng also regretted that there is no nuclear fusion, which is a pity.
Yu Yifeng nodded. He already knew this. If there was really controllable nuclear fusion technology, scientists would have been clamoring for it.
However, he has no doubt that the Green Light Civilization has achieved controllable nuclear fusion. If an interstellar civilization cannot achieve controllable nuclear fusion, it would be a big joke.
But miniaturizing controllable nuclear fusion and putting it in a small drone may not be an order of magnitude technology...
After all, nuclear fusion is not something as simple as nuclear fission. Today, humans have not even touched the threshold. At most... we can only say that we have seen the threshold.
"The green light drone brings a complete set of material technology, small fission energy technology, intelligent operating system, and more efficient ion engine, etc. The most critical one is the ion engine..."
Dr. Luo Meng opened a pile of information from the computer and drew an exquisite model diagram on it, which is also the crystallization of the wisdom of electrodynamics experts over the years: an ultra-high-speed ion propulsion engine!
The ion engine, also known as the plasma engine, is a type of electric propulsion system. It is now quite mature in application. The main medium for its application is plasma. In the past, satellites on the earth used this kind of engine, but their propulsion force was very small.
, unlike the current one.
It uses the Lorentz force to accelerate charged atoms or ions through a magnetic field to reversely drive the spacecraft. It is the same principle as particle accelerators and rail guns.
Compared with traditional chemical propulsion, it is really outdated, consuming huge energy but bringing little final kinetic energy.
The first moon landing rocket "Saturn 5" is a typical representative of chemical propulsion. Its first stage is equipped with 2075 tons of liquid oxygen kerosene propellant.
Once the engine is ignited, it can "drink" all these "drinks" in 2 minutes and 34 seconds.
The high-temperature gas is ejected at a speed of 2900 meters per second, but it is only enough to send a 47-ton payload to the moon.
Of the 3,500 tons of thrust that can be generated, a large part is used to "drag" the rocket itself and more than 2,000 tons of fuel. Therefore, its "specific impulse" is not high, only more than 300 seconds, and the propulsion efficiency is very low.
"The higher the speed at which the ion engine ejects plasma, the higher the specific impulse. Currently, the maximum speed of plasma ejected by the latest engine is 3,000 kilometers per second, which is one percent of the speed of light! The specific impulse is about 300,000 seconds.
It is a thousand times that of traditional rockets, and the energy conversion rate is as high as 70%!" Luo Meng explained.
"If the engine can work all the time, it can reach higher speeds, but due to energy issues, its speed limit is about 2,000 kilometers/second. In order to ensure safety and reliability, we set the rated speed at 300 kilometers/second.
"
Yu Yifeng nodded silently. This limit speed was actually pretty good, reaching one hundred and fifty times the speed of light.
Scientists have calculated that even with powerful nuclear fusion energy, it can only accelerate the spacecraft to 10% of the speed of light, let alone small nuclear fission.
The faster the speed, the greater the amount of kinetic energy required. If the speed is higher, relativistic effects will also be involved.
It is impossible for a human being to become fat in one sitting.
But he was a little curious: "Why is the Green Lantern's spaceship so fast? One-thirtieth of the speed of light? It's almost impossible to use nuclear fission energy?!"