A flight propulsion system (110) for driving a spacecraft (100) in a flight direction (112) to carry a payload (104) to outer space includes a tank (106) receiving a fuel; a reservoir (108) receiving an oxidizing agent; a combustion chamber device (114) dedicated to the conversion of said fuel by said oxidizing agent; a propellant nozzle device (116) adjacent to said device (114); and a fairing device (118) annularly surrounding said device (116), at least in portions, to generate enveloping airflow during a flight of the space vehicle (100) traveling through the atmosphere.
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