한국형발사체 75톤급 엔진 1G의 예냉 특성

Developement test of 75 tonf-class engine for KSLV-II"s first and second stage is undergoing in Rocket Engine Test Facility(RETF). In a test preparatory stage, engine chill down is performed to satisfy inlet condition of Oxidizer pump. It is important to evaluate the chill down characteristics and an oxidizer consumption rate during the preparatory stage for improving test effectiveness. In this paper, the result of engine chill down characteristics and the oxidizer consumption characteristics is described.