Jack line-A strong line, or a wire stay running fore and aft along the
sides of a boat to which a safety harness can be attached.
Jacobs ladder-A rope ladder.
Jettison: -to throw overboard.
Jetty-A man made structure projecting from the shore. Breakwater
protecting a harbor entrance
- a triangular foresail in front of the foremast.
Jib Sheet The lines that lead from the clew of the jib.
-Spar forward of bowsprit
Jibe. To go from one tack to the other when running with the wind coming
over the stern
Jigger-Aft sail on the mizzen mast of a yawl or a ketch. After mast
(4th mast)on schooner or sailing ship carrying a spanker.
Jones John Paul-US
(Scot.-born) naval officer & hero in American Revolution; as captain of ship
Junk-A native sailing
vessel common to the Far East Seas