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Turbine rotor-pyrostarter coupled test was performed for the verification of thermo-structural suitability of a turbopump turbine. Newly developed solid propellant and design concept were used in pyrostarter development. In case of turbine rotor, rotor config uration modification and post EDM machining process are adopted in rotor manufacturing respective ly for the thermal stress relief and the surface integrity improvement on the blade surfaces. In the tes t, combustion gas of pyrostarter was directly ejected from the nozzles and impinged on the stationar y turbine rotor specimen through the identically shaped flow passage of turbopump. Three kind of thermal load - design to extreme condition - test were performed and no damages were found on the turbine rotor specimens.         -  .                    .  75             .                   .Key Words: Turbopump(), Turbine(), Pyrostarter(), (Coupled-test)Received 7 June 2013 / Revised 23 December 2013 / Accepted 2 J anuary 2014

Turbine Rotor-Pyrostarter Coupled Test for the Verification of Thermo-Structural Suitability of a Turbopump Turbine