alexa The Panorama Of European Launchers And Their Evolution
ISSN: 2168-9792

Journal of Aeronautics & Aerospace Engineering
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3rd International Conference and Exhibition on Satellite & Space Missions
May 11-13, 2017 Barcelona, Spain

Jean-Marc Astorg
National Centre for Space Studies (CNES), France
ScientificTracks Abstracts: J Aeronaut Aerospace Eng
DOI: 10.4172/2168-9792-C1-016
Abstract
Currently, Arianespace operates three launch vehicles from the Guiana Space Centre: The heavy-lift launcher Ariane 5, which entered into service in 1996, has so far achieved 77 successful launches in a row since 2002. It is designed to place two heavy telecommunications satellites into geostationary transfer orbit; the medium-lift launcher Soyuz ST, for which Europe built a launch complex in French Guiana following the cooperation agreement signed with Russia in 2003. Operational since 2011, it has performed 16 launches from the Guiana Space Centre, and is fundamentally purposed to launch the Galileo satellite navigation constellation and other European institutional satellites (Earth observation, science) and; the lightweight Vega, whose development in 1997 was strongly advocated by Italy, realized its maiden flight in 2012 and has had nine successful launches since then. The Vega rocket is specifically designed to launch commercial or scientific missions with a mass lower than 1.5 tons in Low Earth Orbit. With this array of launch vehicles, Arianespace currently enjoys the availability of a fleet covering almost the full spectrum of the launch market in terms of both mass and orbits. The company remains the leading service provider on the open commercial market. However, owing to the development of new launch vehicles throughout the world, in recent years the launch service sector has indeed witnessed a hardening of competition. Therefore, the ESA Ministerial Conference of December 2014 eventually took some important decisions intended to provide Arianespace with the necessary tools to better cope with the increasing global competition: An upgraded launcher - Ariane 6 - that will be twice cheap (50% cheaper than Ariane 5), and a guaranteed market of five institutional launches per year at European level. At the Ministerial, ESA Member States also decided to proceed with the development of a new version of the Vega rocket: named Vega-C, it will be more efficient and will better meet the market needs of European small satellites. Ariane 6 and Vega C will make use of a common engine to reduce costs. The Ariane 6 programme is under development with a scheduled maiden flight in 2020. Although with Ariane 6 and Vega C, Europe will possess a range of advanced and cost-effective launch vehicles; the current pressures to reduce costs for accessing space are likely to remain a major trend in the long run. Therefore, the ESA Ministerial Conference of December 2016 also decided to fund the development of a low cost engine dubbed Prometheus that could equip the Ariane 6 evolutions either in an expandable or reusable mode.
Biography

Jean-Marc Astorg completed his Graduation at École Centrale des Arts et Manufactures in 1985. He joined the CNES Launch Vehicles Directorate and held various managerial positions in the field of European launchers, responsible alternately for programmes that were preparing the future or for developing launchers. From 1991 to 1998, he supervised the studies for the new version Ariane 5ECA, and the small Vega launcher. In 1998, he became Project Leader for development of the new ESC-A upper stage of Ariane 5. He also directed the ‘Soyuz in French Guiana’ project, from 2003 to the successful first launch in 2011. In 2011, he was appointed as CNES Director of Procurement, Sales and Legal Affairs. He was also CNES Director in charge of Intellectual Property, and CNES Mediator for relations with SMEs. Since 2015, he has been the Head of the CNES Launch Vehicles Directorate.

Email: [email protected]

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