Recently, Hebei Runfeng cryogenic equipment Co., Ltd. produced the "sky" 50t reusable liquid oxygen / kerosene engine independently developed by Xinghe power Aerospace Co., Ltd. and the full system test run was a complete success! This test run is the first full system test run of "sky" engine. The purpose is to verify the engine start-up and shutdown sequence, the feasibility of system and structure scheme, and the work coordination of various assemblies. During the test run, the engine was started according to the predetermined procedure, the ignition, starting and stage transfer were normal, all components worked normally, the combustion was stable, the flame at the nozzle outlet was bright, the main parameters were consistent with the adjusted and calculated values, the engine was shut down according to the procedure, the product was complete after the test, and the test was a complete success. The successful test run marks that the LOX / kerosene engine with the largest thrust in the private commercial aerospace field in China has officially entered the engineering development stage.

The "sky" 50t reusable liquid oxygen / kerosene engine is the largest thrust liquid oxygen / kerosene engine independently developed by the private aerospace industry. It is also the first high thrust liquid rocket engine using the pin bolt injection technology in China. It has the ability of deep variable thrust and is the best choice for the vertical recovery of 200-300t liquid rockets. In addition to the needle bolt injection technology, the multi reflux vortex ball conical gas generator, coaxial double suction turbine pump and multi-functional integrated combined valve adopted by the "sky" engine are all domestic and international leaders. The success of this test run provides a strong support for the follow-up research and development of the "zhishenxing-1" medium reusable liquid launch vehicle, and also lays a solid foundation for the solid-liquid business model of Xinghe power aerospace company!