ABS Class Notations Table - Towmasters: the Master of Towing ...

ÅABS Notations and Symbols – 3 November 2003 (Updated on 25 January 2007)
Container Carriers
NOTATION
PARR-N
PARR-C1
PARR-C2
DESCRIPTION
These notations are assigned to a vessels complying with the requirements specified in the ABS Guide
for Assessment of Parametric Roll Resonance in the Design of Container Carriers.
PARR-N – This notation is assigned to a vessel for which the susceptibility criteria of Section 2 of
the Guide shows no susceptibility to parametric roll.
PARR-C1 – This notation is assigned to a vessel with parametric roll under control. For this
notation, a roll decay test, susceptibility and severity check and numerical simulations have been
performed and operational guidance has been developed.
PARR-C2 – This notation is assigned to a vessel with parametric roll under control. For this
notation, a roll decay test, susceptibility and severity check and numerical simulations have been
performed and operational guidance has been developed. In addition, anti-rolling devices designed
specifically to eliminate or mitigate parametric roll with proof of efficiency or general-purpose antirolling
devices proven effective against parametric roll are fitted.
REFERENCES
Section 5 of the Guide for the Assessment of Parametric Roll Resonance in the Design of Container Carriers
REMARKS
ABS Optional Notations
PARR-N, PARR-C1 or PARR-C2 will be published in the category of “Additional Notations” in
the Record.