Tian Fei I, developed by Xigong University, was successfully launched. What technical breakthroughs has this rocket made?

This rocket has made a major technological breakthrough in the field of space.

Generally speaking, Tian Fei-1 has made great breakthroughs in various key technical fields, which not only promoted the space technology to a higher level, but also proved that China has strong independent innovation capability. Specifically, Tian Fei-1 has three major technological breakthroughs: sub-combustion and super-combustion, hot throat and hypersonic gliding engine. These three points will be explained in detail below:

First of all, Tian Fei-1 made a breakthrough in the technology of sub-combustion and scramjet: as the name implies, sub-combustion refers to the boosting combustion technology when flying below the speed of sound, while scramjet refers to the boosting combustion technology when flying above the speed of sound. Breaking through these two technologies, you can switch freely at low speed and overspeed. Because Tian Fei I is a missile rocket, it can lock the target more accurately by switching back and forth between different speeds. In other words, through the breakthrough of sub-combustion and super-combustion technology, rockets and missiles have higher accuracy and can attack targets more effectively.

Secondly, Tian Fei-1 made a breakthrough in hot throat technology: because the rocket burns and ejects flame by booster, it can advance at high speed by using the principle of conservation of momentum. This raises a question. What if Tian Fei 1 exceeds the speed of sound and the booster is turned off? So hot throat technology was born. Through this technology, the internal stability of the booster is strengthened, and the internal combustion of the booster can remain stable even if the speed of sound is reached. How difficult is this technology? An aerospace expert gave an example, which is as difficult as making a match burn stably under the strong wind of 12. It can be seen that this is indeed a major breakthrough.

Third, Tian Fei I completed the ultra-high speed gliding engine: the rocket's ultra-high speed flight is really very fast, but it can't fly far. With this gliding engine, Tian Fei 1 can glide at supersonic speed in the atmosphere. This greatly increased the flight distance of Tian Fei-1. If equipped with weapons, you can attack distant targets.