Chapter 1,671 The second generation of semi-solid foam propulsion fuel
Compared with land landing sites, sea-based landing sites have greater technical difficulties or the difficulty of rocket return and landing.
First of all, the sea-based landing site is floating, and it will sway up and down with the ups and downs of ocean waves. In addition to the impact of waves, tides, sea winds, and even the earth's deflection force will also have an impact on it.
This also means that this ocean landing site or ocean landing platform must have very strong resistance to wind and waves. In addition, it must have a precise platform positioning system.
In other words, it must overcome various influences caused by the ocean and weather, and keep the platform stable and at one point. Only in this way can the descending rocket accurately land on the platform.
This is just a static sea landing site. There is a more difficult one. The entire sea-based landing platform will sail forward at a constant speed and maintain a corresponding traveling speed, and then accurately receive the core first-stage rocket returning from the sky.
This requires that the cooperation between the entire sea-based landing platform and the core first-stage rocket must be accurate. Only in this way can the two be seamlessly connected. A slight mistake will lead to a complete failure of the entire recovery landing, and may even
It will cause serious accidents.
As for Wu Hao's marine rocket landing platform, it was actually welded and transformed from two barges. The two barges were welded together and there was a very huge landing platform on it. The materials used on the platform are similar to those of the aircraft carrier.
The materials used in the deck are the same, and their strength is even higher than that of the aircraft carrier deck.
In addition, a fire sprinkler system is installed on this landing platform, which will spray fresh water to wash and cool the entire deck. It will also spray dry powder and foam when necessary to quickly extinguish fires.
There is a power system installed under the broken ship. This power system will be able to support this large ocean landing platform to move forward at a speed of 5 to 8 knots per hour, and can maintain the stability of the platform during travel. And this double-link
The hull itself has strong wind and wave resistance and stability. Coupled with the 360-degree free multi-position propulsion system and Sichuan's intelligent autonomous control system, it can control the entire ocean landing platform to sail autonomously and accurately position it.
Go to the ocean and ensure that it does not move with the waves, currents and winds.
When this ocean landing platform performs its mission, there are no personnel on the entire platform. Everything is controlled independently by the platform's own intelligent control system. It will predict and make adaptive adjustments based on the landing position of the rocket.
That is to say, when the first stage of the rocket core lands, it is actually linked with the landing platform. In this way, the success of the landing can be greatly improved.
But even so, there is still no guarantee that every landing will be successful. This is impossible and unscientific. No one can guarantee that such a mission will be successful. There are tens of thousands of links and hundreds of thousands of zeros.
If there is a problem with one of the components, it will cause the entire rocket launch mission or the recovery and landing mission to fail.
Now, this ocean rocket landing platform has completed all environmental testing before setting sail, and is ready to weigh anchor and leave the port, heading to the predetermined sea area.
After arriving at the scheduled time, on the one hand, it will start preparations for the landing of the Jianmu-7 core first-stage rocket, and on the other hand, it will also conduct various tests. After all, this is also the first time for this ocean rocket landing platform
To perform a landing mission, test it several times in advance and do your best to ensure that nothing goes wrong.
At the same time, the Jianmu-7 rocket carrying the intelligent lunar surface patrol and exploration vehicle assembly began to slowly move to the launch tower surrounded by people.
The entire transfer process is very slow. It should be said that this is the largest vertical transfer device in the world, and the railway below is also the fastest railway in the world.
Slowly, after several hours of vertical transfer, the Jianmu-7 rocket was finally transferred to the launch tower, and then the huge components of the launch tower that had been opened began to re-wrap the rocket inside.
This is the final preparation stage before launch. The launch site, rocket development unit, and payload development unit must use this last time to begin comprehensive testing and verification of the launch system, rocket system, payload system, and payload rocket system to ensure nothing goes wrong.
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After all the tests are completed and everything is ensured, the fueling of the rocket will begin. The Jianmu-7 rocket still uses the semi-solid foam propulsion fuel developed by Wu Hao and the others, but compared with
The first generation recommended fuel, the second generation semi-solid foam propulsion fuel has higher performance. To put it bluntly, the energy density is higher, and the thrust generated is greater.
The filling of this semi-solid foam propulsion fuel is actually similar to the filling of kerosene. Before filling, it actually appears as a more viscous oil. It can only be added into the rocket to react with another catalyst.
, will produce this semi-solid foaming state, and this semi-solid foaming state can allow the rocket to be filled with more fuel, thereby producing greater and more durable thrust.
After the fuel filling is completed, the comprehensive drill process before launch begins. Generally, the drill is repeated several times until all the work is ready and the wait for the launch time comes.
Generally speaking, no one knows the outcome until the last moment. The launch site determines whether the rocket will be launched on time, because no one knows whether the rocket can be launched on time until the last second before launch.
If there is any problem with the rocket or the launch system and the payload system, the launch process will be terminated immediately. Various troubleshooting work will be carried out immediately. If there are some minor faults, it may be delayed by an hour or two.
If the failure is relatively large, the rocket may officially terminate the launch, the rocket will begin to extract fuel, and then the main rocket will be re-transported to the factory for inspection. This process is very complicated and very time-consuming and labor-intensive. Therefore,
This situation is also something that all rocket system technicians, launch site systems, and payload systems do not want to see.
Of course, there is another situation that no one wants to see, and that is a danger. Especially the ten seconds after launch are very critical. If something goes wrong during this process, the resulting
The impact is undoubtedly huge.
Several such accidents have occurred before. The rocket malfunctioned seconds after launch, resulting in serious accidents and the death of many people.
