You define the carriage clearance from ground (which defines the deflection at each calculation point) and the computer calculates the maximum load that can be lifted each point. The load is limited by the working tensions in the cables.
This analysis shows the largest payload that can be lifted to a given height above ground. Although a large load may be lifted near the tail hold, it may not be possible to transport it back to the landing.
Note that no load can be lifted above the tight skyline position (chord) so some points may be impossible to calculate and will be left out of the results.
