170.125—Operating information for a vessel engaged in lifting.
In addition to the information required in § 170.110, the following information must be included in the stability booklet of a vessel that is required to comply with § 173.005 of this subchapter:
(a) Non-counterballasted vessel.
If a vessel is not counterballasted, stability information setting forth hook load limits corresponding to boom radii based on the intact stability criterion in § 173.020 must be provided.
(b) Counterballasted vessel.
If a vessel is counterballasted with water, the following information must be provided:
(2)
Instructions on the amounts of counterballast needed to compensate for hook load heeling moments.
(3)
If a vessel has fixed counterballast, a table of draft versus maximum vertical moment of deck cargo and hook load combined.
(4)
If a vessel has variable counterballast, a table of draft versus maximum vertical moment of deck cargo and hook load combined for each counterballasted condition.