"Kim Keller" wrote in message
om...
Each CBC is attached to a square steel rig with four hold-down posts.
Heavy uses a three-frame assembly. The frame's east side bolts to the
launch table and the booster/frame assembly is rotated to vertical by the
fixed pad erector. Then the west side of the frame is bolted down to the
table.

Oops, got that backwards. West side bolts down, rocket rotates to vertical,
east side bolts down.

-Kim-