한국형발사체 7톤급 엔진의 개발 시험 현황

The test results of the 7 tonf-class engine development for KSLV-II 3rd stage engine are presented. The firing test performed with two engineering model engines were classified as ground test and high altitude test according to test condition. The operability verification of engines were successfully carried out through short and long duration test. There were found some improvement items through full duration test performed for the durability verification of engines. Synthetically, encouraging data of adding power to engine development were obtained from the 7 tonf-class engines test. New engines based on the results will be manufactured and consistently verified through hot firing test.