Ariane 5 GS V166

Launch of Ariane 5 GS flight V166. This was the first Ariane 5 launch in the GS variant. Ariane 5 GS incorporates upgraded Solid Booster Stages (EAPs) from the Ariane 5 ECA version, as well as the composite vehicle equipment bay and the uprated upper stage from the earlier Ariane 5G+.