The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). What is the margin on the maximum allowable KG if winds increase to greater than 70 knots, and the TOC is changed to the recommended value?

Correct Answer: Option B — 1.0 foot

Rig move stability assessments require evaluating the center of gravity against maximum allowable KG curves. Based on Sample Load Form #1 (Rig Move), adjusting the center of gravity (TOC) to recommended values leaves an exact safety margin of 1.0 foot against the allowable limit.