ETS-VI (Engineering Test Satellite VI), the Japanses first two ton-class stationary satellite, is scheduled to be launched in 1992 by the H-II heavy launch vehicle. Under the contract with the National Space Development Agency, IHI conducts the apogee stage integration for the EST-VII. Trade-off study on various possibilities resulted in stage configuration in separable blow-down type with storable propellant; i.e., NTO/N2H4 for the advantages of simplicity, lower program risks and shorter development period and christened LAPS (liquid Apogee Propulsion System). LAPS has a single 2000N-class engine and four thrusters and capabilities of on-orbit restarting, propellant settling and automatic engine shut-down with command from the satellite. The apogee engine has been firing tested over 500 times including sea-level firing test with 3500 seconds of duration that simulated flight operation and possibility of practical use as firmly convinced by the propulsion system.
Development of Liquid Apogee Propulsion System for ETS-VI
1988
7 pages
Report
Keine Angabe
Englisch
Development of the Liquid Apogee Propulsion System for ETS-VI
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