BY:SpaceEyeNews.
A new milestone in China’s commercial space industry is attracting attention worldwide. A startup founded only in 2024 has successfully completed a long-duration test of one of the most advanced rocket engine technologies currently in development.
The company, Mega Engine Technology, announced that its reusable Chi rocket engine completed a 1,000-second hot fire test campaign. That achievement is significant because reusable propulsion remains one of the most challenging areas of aerospace engineering.
More importantly, the China reusable rocket engine program highlights how rapidly China’s private space sector is evolving. Just a few years ago, many commercial Chinese launch firms focused on small-scale development projects. Today, some are building advanced propulsion systems designed for reusable launch vehicles.
The milestone raises an important question. Is China entering its own reusable rocket era?
The answer may depend on what happens next. However, one thing is already clear. The pace of progress has surprised many observers across the global space industry.
Why the China Reusable Rocket Engine Is a Bigger Deal Than It Looks
Many people see headlines about rocket engine tests every year. Most receive little attention outside aerospace circles. This case is different.
The Chi engine is not simply another propulsion system. It uses one of the most advanced engine architectures ever developed.
The Technology Behind the Chi Engine
Mega Engine’s Chi engine runs on liquid oxygen and kerosene. More importantly, it uses an oxygen-rich staged combustion cycle.
That phrase may sound technical, but the concept is simple.
Instead of sending fuel directly into the main combustion chamber, the engine first burns part of the propellant inside a separate preburner. The resulting high-pressure gases then enter the main chamber, extracting more energy from the fuel.
This process increases efficiency significantly.
However, it also creates enormous engineering challenges.
The hardware must survive extreme temperatures, intense pressure, and chemically aggressive environments. Even small design flaws can affect engine performance.
As a result, only a limited number of organizations worldwide have successfully developed oxygen-rich staged combustion engines.
Why the 1,000-Second Test Matters
Duration is critical in rocket development.
A short engine firing demonstrates basic functionality. A long-duration campaign demonstrates stability, durability, and operational maturity.
The Chi engine accumulated 1,000 seconds of successful operation during the latest campaign. According to the company, the total testing time has now reached approximately 2,000 seconds.
That provides engineers with valuable data.
It also demonstrates confidence in the hardware.
After inspection, Mega Engine reported that the engine remained in good condition. Stable combustion and rapid startup performance were also achieved during testing.
Built for Modern Launch Systems
The Chi engine was designed with future reusable rockets in mind.
Key capabilities include:
- Variable thrust operation
- Multiple restart capability
- Reusable hardware architecture
- High-performance efficiency
These features have become increasingly important across the commercial launch sector.
Launch providers want engines that can support a variety of missions while reducing operational costs. Reusability plays a major role in achieving that goal.
The China reusable rocket engine therefore represents more than a technical demonstration. It reflects a broader shift toward next-generation launch technology.
How Mega Engine Reached This Milestone So Quickly
Perhaps the most surprising aspect of the story is not the engine itself.
It is the company behind it.
Mega Engine Technology was founded in 2024. Yet it has already completed advanced propulsion development and major testing milestones.
That timeline has attracted considerable attention.
A Startup Moving at Unusual Speed
Rocket engine development normally takes years.
Engineers must design, manufacture, test, redesign, and retest countless components before reaching operational readiness.
Reusable engines add another layer of complexity because the hardware must withstand repeated use.
Despite those challenges, Mega Engine moved quickly.
By April 2025, the company had already completed development and initial testing of its first staged-combustion engine.
Now it has demonstrated a major long-duration firing milestone.
That level of progress is uncommon for such a young company.
The Talent Behind the Program
People often focus on technology. However, talent remains equally important.
Reports indicate that Mega Engine’s leadership team includes specialists in advanced liquid propulsion.
One of the company’s co-founders, Zhang Chenxing, earned a PhD from MIT.
The broader team includes engineers with experience in high-performance rocket systems.
Industry observers suggest that this expertise helped accelerate development.
It also reflects a growing trend across China’s commercial space sector. New startups increasingly attract experienced specialists from research institutions, aerospace companies, and advanced engineering programs.
The Rise of China’s Commercial Space Ecosystem
Mega Engine is not operating alone.
China’s commercial launch industry has expanded rapidly over the last decade.
New companies are developing rockets, satellites, propulsion systems, launch services, and space infrastructure.
At the same time, manufacturers, suppliers, testing facilities, and research organizations continue expanding their capabilities.
This ecosystem allows startups to move faster than previous generations of aerospace companies.
Instead of building everything from scratch, they can leverage existing industrial resources.
That combination of talent, infrastructure, and investment helps explain why the China reusable rocket engine program advanced so quickly.
Private Innovation Meets Industrial Scale
China’s space sector is experiencing an important transition.
Private firms are no longer limited to small experimental projects.
Many are pursuing technologies once associated only with major government programs.
Reusable propulsion falls into that category.
The Chi engine demonstrates how rapidly private innovation and industrial capability are beginning to work together.
And this engine may only be the beginning.
China Reusable Rocket Engine Supports Much Bigger Goals
The significance of the Chi engine extends far beyond a single test campaign.
It connects directly to larger trends shaping the future of spaceflight.
Why Reusable Rockets Matter
For decades, rockets were largely expendable systems.
After launch, major hardware components could not be used again.
That approach increased costs and limited launch frequency.
Reusable rockets changed the equation.
By recovering and reusing hardware, launch providers can reduce expenses and increase operational efficiency.
This shift has transformed the commercial launch industry.
Many experts believe reusability will define the next generation of space transportation.
Supporting China’s Satellite Ambitions
China is currently developing several major satellite programs.
Among the most ambitious are the Guowang and Qianfan megaconstellations.
These projects require frequent launches and large-scale deployment capability.
Reusable launch systems could help support those goals by lowering operational costs and improving launch cadence.
As satellite networks expand, access to affordable launch services becomes increasingly important.
Future Lunar Exploration
China is also pursuing long-term lunar objectives.
The country continues preparing technologies needed for future crewed Moon missions.
Operations aboard the Tiangong Space Station provide valuable experience for those future activities.
Reusable propulsion systems may eventually support many of these missions.
Lower launch costs create greater flexibility for exploration programs.
They also enable more frequent transportation of equipment and supplies.
The Next Engine: Yan
Mega Engine has already revealed plans for a larger propulsion system.
The future Yan engine is expected to produce approximately 200 tons of thrust.
Together, Chi and Yan could form a complete family of reusable liquid oxygen and kerosene engines.
That strategy suggests the company is planning for a wide range of future launch vehicles.
Rather than focusing on a single engine, Mega Engine appears to be building a long-term propulsion portfolio.
The Competitive Future of Space Access
The commercial space industry is becoming more competitive every year.
Launch providers continue searching for technologies that improve efficiency, reliability, and affordability.
Reusable propulsion sits at the center of that effort.
The China reusable rocket engine developed by Mega Engine represents another step toward that future.
While the company remains young, its achievements suggest that advanced reusable launch technology is spreading beyond a handful of established players.
That trend could reshape the global launch market during the coming decade.
Conclusion: The Reusable Rocket Race Is No Longer Just American
The successful Chi engine test represents far more than a technical milestone. It highlights the rapid growth of China’s private aerospace sector and demonstrates how quickly advanced propulsion technology is progressing. The China reusable rocket engine program shows that reusable launch systems are becoming a major priority across the global space industry. Mega Engine Technology may have been founded only recently, but its achievements already point toward larger ambitions. As reusable propulsion becomes increasingly important, the competition to provide affordable access to space will continue to intensify. And if startups established just a few years ago can already reach milestones like this, the next phase of commercial spaceflight may arrive much sooner than many expected.
Main Sources:
Interesting Engineering
https://interestingengineering.com/innovation/china-successfully-fires-reusable-engine-spacex
SpaceNews
https://spacenews.com