Template:Infobox ship characteristics/paramlineP

For internal use by   and possibly    itself in the future.
 * lab= infobox line label
 * val= optional value for parameter
 * if absent and no WDval parameter: line is not displayed
 * if absent and WDval parameter: Wikidata is used to provide a value
 * if "none": line is not displayed
 * WDval= optional Wikidata property value (imported using parser function  </tt>)
 * WDlnk</tt>= optional link to corresponding Wikidata item page