Chapter 2729 Fancy Play
Well, they could see that Qin Luo was playing for real from the very beginning.
"Row!"
After a long silence, Zhou Minggang nodded heavily.
There is no way, Qin Luo's appearance means that he has made up his mind, let Qin Luo change his mind?
Emmmmm, forgive them for reading less, they really have no such thing!
Looking at the appearance of everyone, Qin Luo had a bright smile on his face, and said, "Professors, there is one more thing."
"Derailment technology is divided into active derailment and passive derailment. Which one do you think we should try first?"
Derailment is not an easy job.
He is divided into active and passive.
The conditions for distinguishing between the two are also very simple.
Whether it has the ability to change orbits.
A spacecraft with the ability to change orbits can directly provide the orbit-changing impulse from the engine, so that the spacecraft will actively fall into the atmosphere from leaving the original orbit.
A spacecraft that does not have the ability to actively change orbits requires a special braking rocket.
The brake rocket is mounted on the spacecraft along the longitudinal axis so that the thrust vector of the rocket is aligned with the longitudinal axis.
First, the attitude of the spacecraft is adjusted by the attitude control system so that its longitudinal axis forms an angle θ with the local horizontal plane (called the braking angle). The direction of the vertical axis at this time is called the braking direction.The thrust of the braking rocket acts along the braking direction for a period of time, so that the spacecraft obtains an additional velocity ΔV in this direction.
Therefore, the speed of the spacecraft changes from V1 to V2. Although the magnitudes of V2 and V1 do not change much, the change in direction can make the spacecraft deviate from the original orbit to achieve the purpose of landing.
Compared with passive track change, the maneuverability of active track change is undoubtedly much better.
But correspondingly, the difficulty of the subject is much higher.
The time spent is usually several times that of passive orbit change research.
If it was normal, Zhou Minggang felt that it would be better to take the initiative to change the track.
But the current situation is extremely tight.
There is not much time left for Qin Luo and them.
To put it simply, they don't have time to complete the active orbit change experiment.
So for Zhou Minggang, this multiple-choice question is not unsolvable.
After pondering for a while, Zhou Minggang immediately said: "If you want to ask me, I suggest to focus on passive orbit change."
"After all, time is tight. If we want to complete the manned spaceflight test flight within half a year, we must seize all the time."
"And keep everything simple, starting from the most practical and time-saving topics, only in this way can we complete the test flight in half a year!"
It has to be said that Qin Luo felt that Zhou Minggang's words were quite reasonable.
Things are just as he said, time is running out now, and Qin Luo has no time to spend here.
But if it makes sense, it doesn't mean that Qin Luo is going to do it.
As a top student, and a top student in the world.
Qin Luo has his own principles of doing things.
That is, either do not do it, or do it to the best.
Anyway, you have to experiment left and right, why not do it in one step?
Isn't it a waste of time to wait until later to study it again?
"Professor Zhou, what you said makes sense." Qin Luo nodded solemnly and said, "However, I don't intend to adopt it."
Zhou Minggang:? ? ?
What do you mean?
I think what I said makes sense, but I just don’t use it, right?
It was the first time Zhou Minggang saw someone playing like this!