longitudinal center of gravity
Also found in: Acronyms.
longitudinal center of gravity[‚län·jə′tüd·ən·əl ′sen·tər əv ′grav·əd·ē]
That point at which the combined weight of all the items that constitute a ship's weight are considered to be concentrated; usually stated as either aft or forward of the middle perpendicular or the midship frame.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.