114 / | HD | SHIPS |
56.1 | DF | DISPLACEMENT-TYPE HULL (e.g., specific aftbody) {9} |
61.1 | DF | .~ Multiple hulls {8} |
61.15 | DF | .~.~ With connecting means permitting relative movement between hulls {3} |
61.18 | .~.~.~ Connecting means permits transverse linear horizontal movement of hulls toward each other |