GUIDELINES
FOR
MARINE
LIFTING
&
LOWERING
OPERATIONS
0027/ND Rev 11
Page 22 of 84
Figure 5-1
Lift Calculation Flowchart
(Numbers in [ ] indicate the referenced section of this document)
Apply weight contingency factor
[5.2]
Calculate lift point & sling loads [6.3] & [6.4]
DEFINE SLING / GROMMET
MBL & SHACKLE WLL
REQUIRED [7] & [8.2]
DETERMINE LATERAL
LIFT POINT LOAD [12.3]
IDENTIFY / REPORT
RIGGING UTILISATION
FACTORS & RIGGING
GEOMETRY
CALCULATE STATIC and
DYNAMIC HOOK LOADS [10.3]
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