Bradley and his team were very focused on safety, probably a good idea given that the people riding the flying armchair Friday were going to be reporters and the director of "Up."
This is one of the many carabiner connections that made up the structural underpinning of the cluster and its tethering to the armchair. The balloons were organized into six sections, called A, B, C, D, E, and F, many of which were denoted by the small labels like the one in this image.
Photo by Daniel Terdiman/CNET
Caption by Daniel Terdiman