lifting position and this shall be used for the entire crane. Required information for the vessel-specific method is
discussed in Annex B.
5.4.3 General Method
For the general method, the velocity Vd and Vc shall be taken from Table 3 for offboard lifts. These velocities were
based on estimates of motions derived for representative platform and vessels of various types. Annex B discusses
the basis for the values given in Table 3. For the general method, the platform and vessel values from Table 4 and
Table 5 shall also be used.
5.4.4 Legacy Dynamic Method
For some offboard lifts from bottom-supported installations, the Legacy Dynamic Method may be used instead of the
General or Vessel-specific Method. This alternate method is only allowed for bottom-supported structures in areas
with very mild sea and wind conditions (i.e. the Gulf of Mexico) and shall only be used in situations where the supply
vessel position is maintained constant relative to the platform (i.e. for a platform-tethered supply vessel). In these