Recently, Space Honor Aerospace Technology Group made an announcement. Leveraging its self - constructed liquid rocket engine test stand, the group successfully carried out a joint matching test between the JD - 2 (Focus - 2) 100 - ton - class liquid oxygen - methane engine and Xingkong - 3.

In the aerospace context, this JD - 2 engine serves as a crucial supporting component for the inaugural long - range test flight of the Hyperbola - 3 (SQX - 3), which is a medium - to - large reusable liquid launch vehicle.

The successful completion of this test holds significant importance. It not only verified the engine's operational reliability when it is in a launch - ready state but also enabled a coordinated assessment of how the engine interacts with the Xingkong - 3 control system. Moreover, it has established a solid groundwork for the upcoming maiden flight of the SQX - 3 launch vehicle.