When elevating the COASTAL DRILLER in 150 feet of water, the unit should be placed at an air gap of __________.

Correct Answer: Option B — 32 feet

Operating manuals dictate specific air gaps based on water depth and wave diffraction profiles. When elevating the COASTAL DRILLER in 150 feet of water, the designated operational air gap is adjusted to 32 feet to balance wave clearance with leg moment limitations.