Shulou(Shulou.com)11/24 Report--

CTOnews.com, July 16 (Xinhua)-- the hyperbolic II verification rocket power system test run of Star Glory Space Technology Co., Ltd. was a complete success at the beginning of this month, and the follow-up hyperbolic 3 rocket is already under development.

The Hyperbola-3 (SQX-3) carrier rocket is a medium-sized reusable liquid carrier rocket being developed by Interstellar Glory, which passed the evaluation of the scheme demonstration transition in 2021.

According to the official rocket type spectrum, the hyperbolic 3 medium liquid rocket can not recover 10.4 tons / 6.2 tons in 500 km sun synchronous orbit, while the hyperbolic 3 large liquid rocket can bring non-recovery capacity of 26.2 tons / 10.6 tons.

According to ▲ rocket spectrum, SQX-3 series liquid carrier rockets, as interstellar glory medium and large liquid carrier rockets, are currently known to be the reusable liquid carrier rockets with the largest diameter, the strongest carrying capacity, and the lowest price per kilogram load, and will be the main models to participate in commercial launch market launch missions, which will help to further enhance the service capacity of domestic commercial carrier rockets.

SQX-3 series liquid launch vehicles provide a variety of configurations, carrying capacity can meet the needs of a variety of payload missions. In addition to meeting large-scale satellite networking and medium-and large-scale satellite launch missions, it also has the ability of space station transportation and deep space exploration.

According to the public data of ▲ schematic CTOnews.com query, it is found that the basic type of SQX-3 is a two-stage series layout, with a diameter of 4.2m, a total length of 68m and a take-off mass of 490t; its first stage is a general core class, which adopts a parallel layout of nine focus No. 2 (code "JD-2", sea level thrust 85t) liquid oxygen methane engines, which can land vertically in the land recovery yard and the sea recovery platform, and has the ability to return to the field and recover under the route. The two-stage installation of a vacuum version of a JD-2 engine (vacuum thrust 104t) can achieve multiple ignition, so that the load can be put into orbit in a variety of flight modes, and the mode of use is flexible.

According to the official introduction of ▲ design reference indicators, SQX-3 adopts a large number of advanced technologies on the basis of inheriting the technology of SQX-2:

Multiple reuse technology of one child: using return recovery and route recovery mode to recover one child, and one child can be reused not less than 20 times, thus significantly reducing the launch cost.

All-arrow fault diagnosis technology: the whole arrow adopts distributed sensor layout and star connection mode to realize the interconnection of sensor information. with the Star Control II high-performance rocket computer (reusable launch vehicle | Star Glory launched the new generation of carrier rocket's strongest brain "Star Control II") as the core, through the powerful data processing function, the all-arrow fault diagnosis is realized and the fault disposal is completed independently by the arrow. Improve the fault tolerance of rocket flight.

Intelligent flight control technology: the rocket still has the ability to enter the orbit in the case of a single launch failure. Through fault diagnosis and online trajectory planning, it can still be guaranteed to enter the orbit in the case of single launch failure, and significantly improve the flight reliability and mission success rate.

Rapid launch and containment release technology: the three-level test mode is adopted to simplify the process, shorten the time and realize the rapid launch. Combined with fault diagnosis technology, the containment and release mechanism can be released after ensuring the normal operation of each rocket system, and the launch safety of the rocket can be greatly improved.

Automatic release and unattended technology: the technologies such as automatic erection of vertical arm program, unattended after erection, zero-second take-off of add-release connector and so on are adopted to realize no high-altitude operation in the launch area, filling and testing remote control, automatic release of propellant after emergency shutdown and other functions, realizing unattended throughout the process, wireless hair measurement and comprehensive protection of the life and safety of operators in the launch area.

Structural lightweight design technology: through the use of 3D printing, composite materials, non-pyrotechnics separation, structural integration design, load refinement design and other measures to improve the rocket structure efficiency and enhance the carrying capacity under the condition of one-stage recovery.

It is worth mentioning that on the basis of inheriting the SQX-2 one-stage vertical recovery technology (VTVL), SQX-3 makes the carrying capacity reach the scale of the medium-sized launch vehicle by increasing the diameter of the arrow and engine thrust, and reaches the scale of the large launch vehicle by parallel connection of two core stages and three core stages.

In addition, SQX-3 also has good scalability and task adaptability. The SQX-3 series liquid launch vehicle adopts universal one-stage module, and the structure of one sub-stage module in each system configuration is basically the same. Through the way of "general core stage parallel connection + series combination of multiple optional modules", it can meet the requirements of different launch tasks.

Officials also said that the SQX-3 basic model, as the Interstellar Glory 1 medium liquid launch vehicle, is the basis for the subsequent construction of the medium and large liquid rocket spectrum. Adhering to the design idea of "generalization, modularization and combination", it has achieved a wider coverage of launch requirements in terms of basic capacity and subsequent configuration expansion. At the same time, the SQX-3 series of liquid launch vehicles give full play to the advantages of a sub-stage and booster that can be reused, which will significantly reduce launch costs and improve market competitiveness.

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