The Ariane program was born in 1973 and it developed with the launchers Ariane 1, Ariane 3 and Ariane 4. The Ariane 5 program was started in the early 1980s, financed by ESA (European Space Agency), to respond to market needs for better performance.
The Ariane 5 launcher is designed for payloads up to 10 tons in geostationary transfer orbit (GTO). Avio has been working on the Ariane launcher family since the 70s, when it designed, developed and manufactured boosters and stage separation motors for Ariane 1 and 3. Avio later designed and built the Ariane 4 boosters, the enhanced version with 9 tons of solid propellant.
The total number of boosters produced for Ariane 3 and Ariane 4 was more than 180 units, while thousands of separation motors were produced and delivered.