After reminding, netizens realized the intention of practical technology!

It does want to build a "sky plane"!

Aerospace plane is a new aerospace transportation system that can both aerospace and space, combining aircraft, spacecraft, and spacecraft, and can also be used as a manned spacecraft.

It can take off horizontally like an ordinary aircraft and then fly in the atmosphere at supersonic speed. The higher the altitude, the thinner the air, the faster it will fly. In high-rise spaces where the air is thin, it can fly to more than Mach 20.

At this time, you can directly accelerate into the earth's orbit and become a spacecraft. After returning to the atmosphere, you can land at the airport like an airplane, becoming a means of transportation for free to and from heaven and earth.

Earlier, aviation and aerospace were two different technical fields, including aircraft and spacecraft operating in the atmosphere and outside. The air transport system was reused, and the aerospace delivery system was generally not reusable.

Aerospace planes can achieve the purpose of completely reusing and significantly reducing aerospace transportation costs.

Although there are reusable rockets now, the universality, diversity and convenience of recyclable rockets compared to aerospace planes are far less versus.

However, although the idea of ​​aerospace planes is good, it is quite difficult to create them.

The first step that blocks the road is the engine.

Because the flight range of the aerospace plane ranges from within the atmosphere to outside the atmosphere, and its speed can also range from Mach 0 to more than Mach 20. Such a large speed span and changes in the working environment are impossible to meet all the existing single type of engines, so developing a brand new engine for the aerospace plane has become the key to the entire project.

As we all know, jet engines need to suck air in the atmosphere, do not need to carry oxidants, but cannot operate outside the atmosphere and have a small speed.

Rocket engines come with oxidants, which can work inside and outside the atmosphere, and have a wide range of speeds, but the oxidants they carry are bulky and smaller than the impact.

All the rocket engines are big fuel-consuming customers... no, they are big fuel-consuming companies!

Even if rocket fuel can account for more than 90% of the take-off weight, it will be done in a few minutes or more.

This time is comparable to a shiver in the atmosphere, which can fly for several hours, and it is just warming up.

Therefore, the power of the envisioned aerospace plane is generally a combination of supersonic combustion ramjet + rocket engine or turbojet + ramjet + rocket engine.

However, there are quite a lot of technical problems in the development of scramjet engines, and the simple combination of multiple engines will make the structure too complex and unreliable, so the progress is stuck here.

No matter what it is, the more complex it is, the more fragile it is and the more unreliable it is.

Moreover, the more things you pile, the greater the weight of the aircraft, so you need to carry more fuel. More fuel means heavier, so you have to carry more fuel...

If this kind of doll growth occurs, then the aircraft will definitely not be able to be built.

But if there is metal hydrogen on Fanxing, the situation will be different.

Metal hydrogen, which is 200 times more energy than the best aviation fuel, is one-seventh of the volume of liquid hydrogen, but the thrust generated per kilogram of metal hydrogen is equivalent to 5 times that of liquid oxygen rocket fuel per kilogram of liquid hydrogen, and is far more than 1700s of hydrogen-oxygen fuel!

Such a huge batch of fuel requires only "very little" enough to make the aircraft powerful bricks fly for a long time!

As for why scientists did not consider new fuels, but insisted on fighting against new engines, it was because finding and manufacturing super fuels was much more difficult than developing super engines.

But who would have thought that Fanxing would actually get the super fuel out first!

Although the metal hydrogen that Fanxing now has is solid, theoretically, solid metal hydrogen can be converted into liquid, but the conditions are more harsh and consumes more energy.

After all, solid metal hydrogen existed before, and it was not yet made.

Many people even suspect that Fanxing has mastered the technology of making liquid metal hydrogen, because some professionals have studied the structure and landing process of the outpost test chamber and found that the amount of conventional fuel it carries is not enough to land smoothly on the moon, so it must be super fuel.

Needless to say, it must be metal hydrogen.

However, no one saw what the landing engine in the outpost test compartment looked like, and no one had seen its working condition. The landing video was just taken on the moon, and no engine was captured at all.

In theory, solid fuel engines can also land on the moon, but that accuracy requirement is too high.

And it is the kind of accuracy that needs to be calculated in advance, and one step cannot be wrong.

As long as you make a little mistake, the outpost test compartment will definitely fall on the moon.

The Moon Ship 2 of Peacock Kingdom lost control and hit the moon because the liquid fuel engine was not accurate enough... It hit the moon hard.

The fault tolerance of liquid fuel engines is much higher than that of solid fuel engines, and even that can fail, let alone solid fuel engines.

But theoretically... a solid fuel engine can still perform such tasks.

But if the outpost test chamber uses liquid metal hydrogen fuel, landing will be relatively simple, and it also means that Fanxing has mastered the manufacturing method of liquid metal hydrogen.

Although the manufacturing conditions are very harsh, it is acceptable as long as it can be manufactured and the troubles during the subsequent use, especially after entering space, are solved in advance.

Not to mention that outsiders don’t know how difficult and consume it is for Fanxing to make solid metal hydrogen and liquid metal hydrogen. What if... it is not very difficult and the consumption is not very large?

Anyway, no matter what, after analyzing it, most people already feel that this "sky plane" can enter orbit in a single stage, and not to be so small, the carrying capacity should be pretty good.

With super fuel, there is no need to develop complex engines that combine several functions into one. Just use rocket engines to fly inside and outside the atmosphere.

However, the old-style rocket engine cannot be used. This new engine will take longer to withstand high temperatures and the adjustable power output range must also be large.

After all, one of the characteristics of aerospace planes is that they are soft in acceleration, unlike rockets, which is full of power when they come up, and the G force generated is too high, which puts a lot of pressure on astronauts, and is not friendly to tight instruments.

Then...just fly!

What consumes oxygen in the atmosphere to reduce fuel weight, doesn't need to worry about it, and even the air inlet is not needed. The integrated appearance can also increase the strength of the body.

As for the problem of high temperature friction, people also think there is no problem given the emergence of new materials with practical technology.

So the only problem now is...

"Is this a real opportunity?"

"Yes, practical technology is so terrible. If you watch the video, you don't watch it, and you don't have any information!"

"Practical technology gives you an explanation!"

"I'm so anxious!"

"Please, tell me the truth quickly, it's just an aerospace plane!"

"I don't know the truth and I don't have the food anymore."

Not only aerospace enthusiasts and netizens want to know the truth, but those aerospace professionals, as well as the military of major countries, want to know!
Chapter completed!