Suspension Rig — Lift Crystal housing.
Suspension Rig is the central structure on a ship that houses the main Lift Crystal.
"The weight of the entire ship hung suspended from t's cables. There are eight of them, any two enough to bear the wight of the entire vessel . . . but the more cable broke, the more likely it was that those remaining would break. The loss of an occasional cable was expected but never taken lightly.