[i mvat qu 
Q g 
SJovrat Cf eveeat 
Q Q 
b b 
b (h- = tan B) dé fe h-= tang) Edé 
Se) Potisg a) 
Subroutine INPUT 
This routine reads in NAMELIST/HSP/ which contains the initial data concerning the 
craft and sea conditions pertinent to all the runs to be made. It is set up so that most of 
the data are given default values by means of data statements in subroutine INPUT. These 
data statements can be overridden during execution by reading values in on cards. For further 
explanation of the specific variables see section on the input data cards. 
This routine also “‘initializes’’ constant such as 7, p, and g. It uses the input values to 
calculate the keel profile and planform arrays, NO and BM, wave constants, system mass and 
inertia, and maximum mass and depth of chine at each station. 
Subroutine KUTMER (NEOS, TIME, HMAX, X, EPSE, A, HMIN, FIRST) 
This is a Runge-Kutta-Merson integration routine that is capable of changing the size of 
the interval over which it integrates to meet specified error criteria. It is therefore an 
46 
