114 / | HD | SHIPS |
56.1 | DF | DISPLACEMENT-TYPE HULL (e.g., specific aftbody) {9} |
61.1 | DF | .~ Multiple hulls {8} |
61.12 | DF | .~.~ Including a submerged hull (e.g., semisubmerged watercraft) {2} |
61.13 | .~.~.~ Vertically spaced from another submerged or semisubmerged hull |