The large angle stability calculation in Aqwa is case-based. This data record defines a large angle stability calculation case which includes the information of a rotation axis direction and a rotation angle group.

      2   5  7   11    16    21 
     - --- -- ---- ----- ----- ------------------------------ 
    |X|   |  |LACS|     |     | 
     - --- -- ---- ----- ----- ------------------------------ 
          |   |     |     |  
          |   |     |     |_(2)Rotation Angle Group Index (I5) 
          |   |     | 
          |   |     |_(1)Rotation Axis Direction Sequence Index (I5) 
          |   | 
          |   |_Compulsory Data Record Keyword (A4) 
          | 
          |_Optional User Identifier (A2) 

         

(1) is the sequence index of the rotation axis direction. The sequence index of the rotation axis direction is based on the LAAX data record. The sequence indices start from 1 and sequentially increases by 1 for the rotation axis direction sequence from the start direction to the end direction (defined in (1)-(3) of the LAAX data record).

(2) is the rotation angle group index which is defined in (1) of the LARG data record.