Marine Engineering Specialists -- Bentley Systems has acquired Ultramarine's MOSES Software [ Press Release ]
Cargo
The cargo macro defines extra cargo on the barge during transport. The form of the command is: 

 
   CARGO NAME WT X Y Z \
          -SIZE HGT WTH LEN \
          -ARET AY CXT CYT CZT \
          -AREL AX CXL CYL CZL
Here, NAME is the name of the cargo, followed by the weight, WGT, and center of gravity, X, Y, and Z, location on the barge. The Z coordinate is measured above the barge deck, X and Y are standard vessel coordinates. The option -SIZE allows one to define height, HGT, width, WTH, and length, LEN, for the cargo. These dimensions are used to calculate the radii of gyration for the cargo, and are assumed to align correctly with the depth, breadth and length dimensions of the barge. Transverse and longitudinal areas for the cargo can be defined with the -ARET and/or -AREL options, followed by the appropriate area and CX, CY and CZ center.