floodable length

floodable length

[¦fləd·ə·bəl ¦leŋkth]
(naval architecture)
At any point in the length of a ship, the greatest part of the length centered at that point which can be flooded at the prescribed permeability without submerging the margin line.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.