Ariane 5 development

By using improved propulsion systems and new upper stages the Ariane 5 versions could be adapted to carry out a variety of missions, including combined missions to launch a set of satellites into different orbits. This archived page shows planned evolutions in 2001:

Ariane-5 Evolution, planned for end-2004

This will use an improved cryogenic main stage, with a new generation of Vulcain engine to increase the launcher’s performance and enable it to lift into geostationary transfer orbit payloads weighing up to 6.5 tonnes.

Ariane 5 ECA, the first step of the Ariane 5 Plus Programme planned for mid-2004

This launcher, with its Ariane-5 Evolution lower stage, will have a cryogenic upper stage using the same engine as that used in the 3rd stage of the Ariane-4. This new version of Ariane 5 will be able to launch payloads of up to 9 tonnes into geostationary transfer orbit.

Ariane 5 ECB, the 2nd step of the Ariane 5 Plus Programme

This will be the most powerful of the Ariane launchers. Its new upper stage will carry 25 tonnes of liquid oxygen and liquid hydrogen to feed a new engine called Vinci. This will be capable of restarts in flight and will have enough power to put a dual payload of 12 tonnes into geostationary transfer orbit.