B&G Deckman - Manual (Page 182)

User variables
12.23
same as the Heel angle. Above 25 the assigned value will stay at a
constant of 25 since when Deckman interpolates between 25 and 30 the
assigned value remains 25, and beyond 30 the extrapolation will still
give the value 25. The next line will multiply by a constant of 6.4 and
each of the final two lines will divide by boat speed (Deckman
identification number 1).
Incidentally, the result of this calculation is similar to the standard
calculation of leeway, which is:
k*Heel/Boatspeedˆ2
except that, as we saw, Heel angle is limited to 25.
Summary
The following provides a summary of the operation of the calibration
tables:
The calibrations are applied sequentially, so that those specified first in a
file will be applied before those specified later.
Identifiers recognised are table, constant and variable
Number –1 indicates that the calibrations are applied directly to the
variate
Any other number indicates that the calibration is with respect to a
variable in Deckman’s database, with the number referring to the
Deckman identification number as specified in j_varsXX.d
User variables in Deckman
Once you have specified the calibration and filtering functions for your
variables, it is possible to create files to enable the values from within
Deckman.