O/a
From Wikipedia, the free encyclopedia
- The correct title of this article is o/a. The initial letter is shown capitalized due to technical restrictions.
o/a, o.a. or oa can refer to:
- an abbreviation for overall, and is used when describing the length of a ship. This term refers to the maximum length of a vessel from the two points on the hull most distant from each other, measured perpendicular to the waterline.
- an abbreviation for on or about used in US military and government correspondence, as in "it happened o/a 22:30".
[edit] See also
[edit] External link
- http://www.globalsecurity.org/military/systems/ship/measurement.htm, with useful diagrams [1]