Re: Some
"In keeping with the proven Ariane philosophy, Ariane 5 will evolve into a family of launchers that responds to the space transportation challenges of the 21st century.
Starting with a 6,200-kg. payload lift capability to geostationary transfer orbit, the Ariane 5's performance will grow to 12,000 in GTO. "
http://www.arianespace.com/us/family/indexar5.htm