Flight 170 is the 26th Ariane 5 launch and the first in 2006. An ARIANE 5 ECA (Cryogenic Evolution type A), the most powerful version in the ARIANE 5 range, will be used for this flight.
This will be the 22nd commercial mission for Ariane 5. Launcher 527, the 22nd production phase Ariane 5, is the first of the 30 PA contract launchers, for which Airbus Defence and Space is production prime contractor. 527 is consequently the first complete launcher to be delivered to Arianespace, integrated and checked out under Airbus Defence and Space responsibility in the Launcher Integration Building (BIL).
In a multi-payload configuration using the SYLDA 5 "A" (1,500 mm stretched) system, and a long pattern fairing, the launcher is carrying two telecommunications satellites: SPAINSAT in the upper position and HOT BIRD 7A in the lower position.