Proper use of the SOLVE with the RA command.QuestionWhen does SOLVE need to preceed the RA command?AnswerThe RA command starts the curve at the present heel angle. For example,ANGLES = 0, 5, ... 60HEEL = 7RAwill run the curve of righting arms at 7°, 12°, etc. The SOLVE command finds equilibrium for the present loading condition. This may result in a heel angle which is not zero. Therefore,HEEL = 0RAandSOLVERAmay result in different angles being used. IF you have a LIMIT such asLIMIT AREA FROM 0 TO 40 > 10the angles "0" and "40" will be relative to the starting angle. If your LIMIT isLIMIT AREA FROM ABS 0 TO ABS 40 > 10the angles will be relative to upright.There is no need to SOLVE before RA unless you want the RA curve to start atthe angle of equilibrium.

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