Guillaume

Guillaume at Ariane 5 launch pad.

Guillaume Galateau, ESA Launcher System Engineer is responsible for ESA’s assessment of the first Ariane 6 launcher (built by prime contractor ArianeGroup) and mission flightworthiness, enabling ESA, as launch operator, to authorise the launch at liftoff.

His job is an ongoing task to challenge the justification for launcher flightworthiness including launcher items, stage structures, pyrotechnical separation systems, propulsion systems, avionics and software systems. Throughout a launch campaign that includes launcher integration, preparation, checks and assessing technical files based on mission risk assessment. Most of the time, additional justifications are required before flight due to hardware production discrepancies or specific needs for a mission. Necessary relevance relies on competencies and experience.