While the COASTAL DRILLER is in normal transit, the roll period is 8 seconds. What would be the limiting angle of pitch which does not exceed the design limits of the legs?

Correct Answer: Option C — 6°

Transit stability guidelines and operating manuals for the COASTAL DRILLER specify dynamic motion limitations to prevent excessive bending moments on the elevated or lowered legs. Under normal transit roll parameters, the maximum allowable pitch angle to protect structural integrity is limited to 6 degrees.