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Korea Space Launch Vehicle KSLV-Ⅱ

Korea Space Launch Vehicle KSLV-Ⅱ

Korea Space Launch Vehicle KSLV-Ⅱ [image]

The Korea Space Launch Vehicle (KSLV-II) program is a national space development project with the budget of KRW 1.957 trillion over ten years. Its goal is to develop an independent space launch vehicle capable of putting a 1.5 ton multi-purpose satellite into low earth orbit at 600~800km altitude.

In addition to the technologies and know-how acquired through the Naroho (KSLV-I) program, Korea will acquire key technologies such as a high-thrust liquid rocket engine, propulsion test facilities and equipment, as well as comprehensive launch vehicle operational know-how needed for the development of a launch vehicle.

The Korea Space Launch Vehicle (KSLV-II) is a 3-stage launch vehicle consisting of 1st stage with 4 clustered 75-ton liquid rocket engines, 2nd stage with a 75-ton liquid rocket engine and 3rd stage with a 7-ton liquid rocket engine under parallel development.

The Korea Space Launch Vehicle (KSLV-II) program consists of 3 continuous phases. Phase 1 (Mar. 2010~Jul. 2015) activities include reviews of preliminary and system designs, construction of propulsion test facilities and ground test of 7-ton liquid rocket engine, which are successfully accomplished. During the Phase 2 (Aug. 2015-Mar. 2018), currently underway, the detailed design of engine and the launch vehicle, ground test of 75-ton liquid rocket engine and launch of Test Launch Vehicle (for the verification 75-ton LRE performance) will be completed. The final Phase 3 (Apr. 2018-Mar. 2021) aims the completion of the 3-stage launch vehicle system development effort, which will be followed by two trial launches to confirm the successful program accomplishment.

  • Total Length47.2m
  • Diameter3.5m
  • Total Weight200t (including propellant)
  • Payload1,500kg
  • OrbitLow Earth Orbit at altitude of 600~800km
  • Stages3 with first stage consisting of 4 x 75t liquid engines
  • 75-ton / 7-ton Liquid Rocket Engine

    Rocket engine is the core element of launch vehicle technology. The development of a 75- ton-class liquid rocket engine and a 7-ton-class liquid rocket engine is the key agenda of the Korea Space Launch Vehicle (KSLV-II) program.
    During the period of Naroho (KSLV-I) program, component development of 30-ton class liquid rocket engine and preliminary studies on 75-ton liquid rocket engine have been performed.
    To reduce time, cost and technical difficulties, The 75-ton-class and 7-ton-class liquid engines to be mounted on Korea Space Launch Vehicle (KSLV-II) will be developed to the gas generator-turbo-pump type which will use kerosene as fuel and oxygen as oxidizer.

    • Propulsion Test Facilities

      For the development of rocket engine for the Korea Space Launch Vehicle (KSLV-II), 10 different propulsion(engine) test facilities (including Combustion Chamber Test Facility, Turbo-pump Test Facility, Rocket Engine Test Facility, Altitude Engnie Faciltiy, Propulsion System Test Facility in Naro Space Center) have been constructed in various locations. These facilities enabled the large-scale/high-thrust engine tests which were previously impossible in Korea.
      These test facilities enable step-by-step tests of component performance tests for combustion chamber, turbo-pump and gas generators, which are key components of the 7-ton and 7-ton engines, and performance tests of integrated engines in ground and high altitude conditions.
      The plan is to conduct tests (each requires around one week of preparation/test/analysis) on each component and engine anywhere between several dozens and 200 times.

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