The private rocket engine maker Jiuzhou has revealed that it is participating in "a national program for developing next generation of rocket engines". Not sure what this entails. Jiuzhou's product portfolio currently includes the Lingyun and Longyun LOX/Methane engines.
The Lingyun LOX/Methane engine is the first liquid rocket engine developed by Jiuzhou for the commercial launch market. It is also the first liquid engine in China designed for reusable rockets. The engine has accumulated more than 10,000 seconds of hot test runs and was used in a successful VTVL test vehicle by a certain launch provider.
Ground thrust: 100kN
Vacuum thrust: 116.5kN
Ground specific impulse: 288s
Vacuum specific impulse: 355s
Weight: 248kg
Maximum swing angle: ±8°
Variable thrust range: 20%-105%
Number of re-starts during a single flight: ≥3 times
Single-mission burn time: ≥500s
Reusability : ≥50 times
The Longyun LOX/Methane engine is a reusable high-thrust engine designed for medium to heavy launch vehicles. Its thrust-to-weight ratio exceeds 80 at sea level. The engine has accumulated 7,000 seconds in hot test runs. Longyun has been selected by a certain private launch provider (almost certainly Arrowhead/Space Epoch) to power its reusable rocket (XZY-1) currently under development, which will conduct a sub-orbital flight and sea recovery test later this year.
Ground thrust: 676kN
Vacuum thrust: 704kN
Ground specific impulse: 290s
Vacuum specific impulse: 350s
Weight: ≯850kg
Maximum swing angle: ±8°
Variable thrust range: 32%-106%
Number of re-starts during a single flight: ≥3 times
Single-mission burn time: ≥200s
Reusability: ≥50 times
