At the beginning of the program, the designer is offered the option of editing the mass, length, and friction parameters to be used in the simulation. Default values are given for all quantities, in case the user does not know what values should be used, or is not concerned with the particulars of a certain roller coaster; however, for an accurate simulation, these values must be specified by the designer, since they can vary substantially for different coaster cars and tracks. These parameters are shown below, along with their default values.
All default values were used to create the example roller coaster presented here.