While on a normal tow, the COASTAL DRILLER is threatened with the approach of a severe storm. Including the time required to place the generators on-line, the approximate time required to lower the legs from a TOC (tip-of-can) position of 1.20 feet to 60.50 feet is __________.

Correct Answer: Option D — 55 minutes

Emergency lowering of jacking systems from transit tip-of-can positions to preloading depths requires auxiliary power startup, clutch engagement, and slow-speed mechanical lowering. For the COASTAL DRILLER, this operational sequence takes approximately 55 minutes total.