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 __________.

Question

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&deg;. From the standpoint of critical motion, the motion is __________.

Accepted Answer

Option A: unsatisfactory, deballast to survival draft. MODU operational manuals outline motion criteria during tripping operations. A 7-second period with a 4-degree pitch angle exceeds allowable dynamic limits, representing critical resonance or motion that demands deballasting to survival draft for safety.

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&deg;. From the standpoint of critical motion, the motion is __________.

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 __________.