Polar Class 4

GPTKB entity

Statements (13)
Predicate Object
gptkbp:instanceOf ice class
gptkbp:appliesTo ships
gptkbp:definedIn gptkb:International_Association_of_Classification_Societies
gptkbp:describes capable of year-round operation in thick first-year ice, which may include old ice inclusions
https://www.w3.org/2000/01/rdf-schema#label Polar Class 4
gptkbp:introducedIn 2007
gptkbp:lowerAward Polar Class 3
gptkbp:partOf IACS Polar Class system
gptkbp:rank gptkb:Polar_Class_5
gptkbp:relatedTo icebreaker
gptkbp:usedIn polar regions
gptkbp:bfsParent gptkb:RRS_Sir_David_Attenborough
gptkbp:bfsLayer 6