China's Next Generation of Liquid-Propellant Rockets: A Comprehensive Comparison

Introduction

On June 29, 2023, China took a significant step forward in the development of its commercial space industry with the successful launch of the SQX-2 reusable rocket.

This launch marks a major milestone for the Chinese space program, as it represents the first time that a privately-owned Chinese company has successfully launched a liquid-propellant rocket into orbit.

China's Ambitions in Space

China has ambitious plans for its space program, and the development of next-generation liquid-propellant rockets is a key part of this strategy.

These rockets are more efficient and powerful than traditional solid-propellant rockets, and they can be reused multiple times, which significantly reduces the cost of space launch.

SQX-2: China's First Reusable Liquid-Propellant Rocket

The SQX-2 is a two-stage liquid-methane-fueled reusable rocket designed to lift up to 19 tons into low-Earth orbit (LEO).

• The first stage of the SQX-2 is powered by two YF-75D engines, which burn liquid methane and liquid oxygen (LOX).
• The second stage is powered by a single YF-100 engine, which also burns liquid methane and LOX.

The SQX-2 is designed to be reusable up to 10 times, which would significantly reduce the cost of space launch for China.

Tianlong 2: China's Other Liquid-Propellant Rocket

In addition to the SQX-2, China is also developing another liquid-propellant rocket called the Tianlong 2.

• The Tianlong 2 is a three-stage expendable rocket that uses a kerosene and LOX propellant mix.
• The Tianlong 2 is designed to lift up to 15 tons into LEO, making it more powerful than the SQX-2.

Once the Tianlong 2 completes its development, it will join the SQX-2 as a key part of China's commercial space launch industry.

China's Commercial Space Industry

The successful launch of the SQX-2 is a major boost for China's commercial space industry.

This launch demonstrates that Chinese companies are capable of developing and launching advanced rockets, and it is likely to attract more investment into the country's space sector.

Conclusion

The development of next-generation liquid-propellant rockets is a major step forward for China's space program.

These rockets are more efficient, more powerful, and more cost-effective than traditional solid-propellant rockets, and they will play a key role in China's plans to become a major player in the global space industry.