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Lada-class submarine
The Lada-class submarine (Project 677, Russian: Лада) is a Russian fourth-generation diesel-electric attack submarine designed by Rubin and built at Admiralty Shipyards to replace the Kilo class.
Laem Chabang
Laem Chabang is Thailand's main deep-water port, opened in 1991 on the Gulf of Thailand in Chonburi Province, handling more than 60% of the country's container traffic.
Landing craft
A landing craft is a small, shallow-draft boat with a bow ramp that carries troops, vehicles, and cargo from an offshore ship onto a beach, central to amphibious warfare.
Landing Craft Air Cushion
The Landing Craft Air Cushion, known as the JEFF boat, is a United States Navy hovercraft that carries Marines and equipment from ships directly over the beach.
Landing craft tank
The landing craft tank (LCT) is a shallow-draft naval craft with a bow ramp, developed in Britain in 1940 to discharge tanks directly onto beaches.
Landing Craft Utility
The Landing Craft Utility (LCU) is a steel landing craft of the United States Navy and Marine Corps that carries vehicles, troops, and cargo from ships to shore.
Landing Ship, Tank
The Landing Ship, Tank (LST) is an ocean-going military vessel that lands tanks and troops directly onto beaches through bow doors, first built in World War II.
Larry Hillblom
Larry Hillblom (Larry Lee Hillblom) was an American lawyer who co-founded the courier company DHL in 1969 and died in a 1995 plane crash near Saipan.
Lascar
A lascar was a sailor from South Asia or the Indian Ocean region employed on European ships, a term first used at sea by the Portuguese in the early 1500s.
Laser (dinghy)
The Laser, since 2019 formally the ILCA, is a single-handed one-design sailing dinghy designed in 1969 and 1970 by the Canadians Bruce Kirby and Ian Bruce.
Laser Radial
The Laser Radial, designated ILCA 6 since the class was renamed ILCA in 2019, is a smaller-sailed rig for the Laser dinghy, the Olympic women's single-handed dinghy since 2008.
Lateen
The lateen, or Latin sail, is a triangular fore-and-aft sail set on a long angled yard, the principal Mediterranean rig from the early Middle Ages.
Laycan
Laycan, short for laydays/canceling, is the two-date window in a voyage charterparty within which a vessel must arrive at the load port and be ready to load.
Laytime
Laytime is the period contractually allowed to a charterer for loading and discharging cargo under a voyage charterparty, after which the charterer pays demurrage to the shipowner.
LCVP (United States)
The Landing Craft, Vehicle, Personnel (LCVP), widely known as the Higgins boat, was an American wooden landing craft that carried 36 troops ashore, used from D-Day to Korea.
Leading lights
Leading lights, called range lights in North America, are two or more lights a navigator keeps vertically aligned to hold a vessel on a channel's axis.
Legend of the Seas
Legend of the Seas is a Royal Caribbean cruise ship, the third Icon Class vessel, delivered in 2026 and the first in its class based in Europe.
Legend-class cutter
The Legend-class cutter, officially the National Security Cutter, is a 418-foot patrol ship of the United States Coast Guard, the largest class in its fleet.
Leith
Leith is a port district in Edinburgh, Scotland, at the mouth of the Water of Leith, serving as Edinburgh's port since 1329 and once Scotland's busiest port.
Leviathan (yacht)
Leviathan is a 111-meter (364 ft) diesel-electric superyacht built by the Dutch shipyard Oceanco, delivered in November 2025 to Valve co-founder Gabe Newell, reportedly costing around $500 million.
Liberty ship
The Liberty ship, designated EC2-S-C1, was an American cargo ship of World War II, with 2,710 built between 1941 and 1945 to carry war supplies to the Allies.
Lifeboat (shipboard)
A shipboard lifeboat is a rigid survival craft carried on a ship's deck to evacuate crew and passengers in an emergency, regulated under the SOLAS convention.
Lifeboats of the Titanic
The lifeboats of the Titanic were the 20 boats carried on RMS Titanic, with capacity for only 1,178 of the roughly 2,200 people aboard when she sank in 1912.
Light cruiser
A light cruiser is a warship carrying guns of 6.1-inch (155 mm) caliber or smaller, a category created by the London Naval Treaty of 1930 to distinguish it from heavy cruisers.
Lighthouse keeper
A lighthouse keeper, also called a lightkeeper, was a person employed to operate and maintain a lighthouse, keeping its light and fog signal working so mariners could avoid dangerous coasts.
Line-crossing ceremony
The line-crossing ceremony, also called Crossing the Line, is a naval initiation rite performed when a ship crosses the equator, with first-time crossers initiated as shellbacks.
Lion-class battleship
The Lion-class battleships were six fast battleships designed for the Royal Navy in the late 1930s as successors to the King George V class; none was ever completed.
List of active Indonesian Navy ships
The list of active Indonesian Navy ships covers a fleet of roughly 220 to 340 commissioned hulls, dominated by more than a hundred patrol craft.
List of amphibious warfare ships
The list of amphibious warfare ships covers warships that land troops and equipment on hostile or permissive shores, from US LHA and LHD assault ships to landing craft.
List of battleships of France
The list of battleships of France covers French armored capital warships from the world's first ocean-going ironclad, Gloire of 1859, to Jean Bart, completed in 1956.