The P5 truss section being moved by crane towards the
payload canister (out of shot) in the Space Station Processing
Facility of the Kennedy Space Center, in Florida, in October
2006. The canister will be used to transport the truss to the
launch pad for loading into the Shuttle cargo bay.
The P5 truss section is the principle payload of
the ISS 12A.1 assembly mission. It is an
additional section to the ISS integrated truss
structure, which acts as the backbone of the
International Space Station for supporting eight
sets of solar arrays that generate the primary
power supply of the ISS.