»Click here to display Table of Contents« OptiStruct > Reference Guide > Input Data > Bulk Data Section > PARAM:
Parameter
Values
Description
OMACHPR
<YES, NO>
Default = NO
PARAM, OMACHPR controls the Nastran version for some OP2 datablocks.
If YES, the new Nastran version should be used.
If NO, the old Nastran version should be used.