I’ve attached a screenshot below to clarify the geometry and points.
The rack has four CGs and these are the load application points (a), (b), (c), and (d) in the spreadsheet. Each CG has a load in the FWD direction which is a negative direction.
The bottom of the rack has four reaction geometry points (1), (2), (3), and (4), and these are listed in the spreadsheet under reaction pt. geometry.
Weighting factors are all the same.
