The COASTAL DRILLER is experiencing a single amplitude roll angle of 2 degrees and a roll period of 10 seconds. What is the maximum recommended water depth for elevating?
Official USCG Answer & Rule Citation
Correct Answer: Option C — 150 feet
Mobile offshore drilling unit operating manuals establish limiting metacentric heights and dynamic roll criteria for jacking operations. Based on standard operational envelopes for a roll angle of 2 degrees and a 10-second period, the maximum recommended depth is 150 feet.
100% Free & Open Access — No daily limits, paywalls, or gated answers on BrightMariner.