The full period of motion of the DEEP DRILLER while tripping is 7 seconds and the maximum pitch angle as seen on the inclinometers is 4°. From the standpoint of critical motion, the motion is __________.

Correct Answer: Option B — unsatisfactory, deballast to survival draft

High pitch amplitudes combined with short natural periods indicate proximity to resonance and critical motion states. An 8-second motion envelope exceeding operational limits necessitates deballasting to survival draft to reduce hydrodynamic wave loading and safeguard the hull and derrick.