When clear ice is present while drilling, the vertical transverse moments of the DEEP DRILLER are increased by __________.

Correct Answer: Option B — 42,255 ft-long tons

Structural icing significantly degrades MODU stability by adding massive top-weight. Calculations derived from environmental loading manuals indicate that clear ice accumulation increases the vertical transverse moments of the DEEP DRILLER by precisely 42,255 ft-long tons, severely impacting transverse metacentric height.