KRE-075 [한국항공우주연구원]

Description

The KRE-075 is a liquid-propellant rocket engine developed by Hanwha Aerospace [한화에어스페이스] to serve as the primary propulsion system for South Korea’s sovereign orbital launch capability. It utilises a gas-generator cycle, burning a combination of liquid oxygen and refined kerosene (RP-1). The engine was designed to replace technology previously sourced from overseas, marking a transition toward indigenous aerospace manufacturing for the peninsula. The primary user of this engine is the Korea Aerospace Research Institute (KARI) [한국항공우주연구원], which integrates the hardware into the Nuri [누리] (KSLV-II) launch vehicle. In the first stage, four engines are clustered to provide liftoff thrust, while a single vacuum-optimised version powers the second stage. The engine is sold through national strategic procurement frameworks aimed at establishing a domestic satellite delivery service for both civilian and security payloads. Prospective partners should observe that while the system has successfully reached orbit, its operational history is concentrated within a specific national programme rather than a high-frequency commercial schedule. The Aerospace Garage desk would verify the consistency of production quality as manufacturing scales from research-led batches to industrial volumes. Verification of performance data for the vacuum-rated variant and the status of potential upgrade paths for future heavy-lift iterations is also recommended.