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Karakurt-class corvette
The Karakurt-class corvette (Project 22800, Каракурт) is a Russian missile corvette designed by Almaz in St. Petersburg, armed with Kalibr and Oniks cruise missiles for coastal strike.
Karlskrona shipyard
The Karlskrona shipyard is the Swedish naval shipyard on Trossö in Karlskrona, founded in 1680 and now Saab Kockums' yard, where Sweden's submarines are built.
Kate Adams
Kate Adams was the name of three sidewheel packet steamboats operated out of Memphis between 1882 and 1927, carrying cotton, freight, mail, and passengers to Arkansas City, Arkansas.
Keel
A keel is the principal longitudinal structural member along a ship's bottom centerline, acting as the hull's backbone and, in sailing craft, carrying ballast and resisting sideways drift.
Keel block
A keel block is a heavy block on a shipyard slip or dry dock floor on which a ship's keel rests during building or repair.
Keel laying
Keel laying, also called laying down, is the formal recognition of the start of a ship's construction, historically the placement of the keel timber, the ship's backbone.
Ketch
A ketch is a two-masted, fore-and-aft-rigged sailing vessel with the mizzenmast forward of the rudderpost; it served for centuries as cargo craft and cruising yacht.
Khufu ship
The Khufu ship, also called the Cheops ship, is one of two ancient Egyptian cedar boats buried in pits beside the Great Pyramid at Giza, discovered in 1954 and now displayed in the Grand Egyptian Museum.
Kidd-class destroyer
The Kidd class, informally the Ayatollah class, was a class of four US Navy guided-missile destroyers built for Iran and completed after the 1979 revolution.
Kieler Woche
Kieler Woche (Kiel Week) is an annual sailing regatta and summer festival in Kiel, Germany, first raced in 1882 and called the largest sailing event in the world.
Kilo-class submarine
The Kilo-class submarine (Russian Varshavyanka) is a diesel-electric attack submarine designed by Rubin in the Soviet Union, first entering service in the early 1980s and known for quietness.
Kimon-class frigate
The Kimon class is a class of four frigates built by Naval Group for the Hellenic Navy, with lead ship HS Kimon commissioned in December 2025.
King George V-class battleship (1939)
The King George V class was a class of five fast battleships built for the Royal Navy, its main big-gun force from 1941 to 1945.
Kirov-class battlecruiser
The Kirov class, Project 1144 Orlan, is a class of four nuclear-powered Soviet heavy missile cruisers built in Leningrad, the largest warships after aircraft carriers since World War II.
Kirov-class cruiser
The Kirov class, Soviet designation Project 1144 Orlan, is a class of four nuclear-powered guided-missile cruisers built for the Soviet Navy from 1973 to 1996.
Klotok
A klotok, also spelled kelotok, is a traditional motorized wooden riverboat of Kalimantan, Indonesia, used as everyday transport and as a tour boat in Tanjung Puting National Park.
KNOT Offshore Partners LP
KNOT Offshore Partners LP, a Marshall Islands limited partnership formed in 2013 and listed on the NYSE as KNOP, owns 19 shuttle tankers on long-term charters, headquartered in Aberdeen.
Kolkata-class destroyer
The Kolkata-class destroyer, also known as Project 15A, is a class of three stealth guided-missile destroyers of the Indian Navy, built at Mazagon Dock in Mumbai between 2014 and 2016.
Korean Coast Guard
The Korean Coast Guard (해양경찰청) is South Korea's maritime law enforcement agency, created in 1953 and independent since 1996, responsible for policing territorial waters, search and rescue, and maritime crime investigation.
Korean Register
The Korean Register (한국선급, KR) is a non-profit ship classification society founded in 1960 and headquartered in Busan, South Korea, and a full member of IACS.
Kort nozzle
A Kort nozzle is a fixed, ring-shaped duct around a ship's propeller, patented by Ludwig Kort in the 1930s, that increases thrust at low speeds, as on tugboats and trawlers.
KRI Balaputradewa
KRI Balaputradewa (322) is an Indonesian frigate, the lead ship of the Merah Putih class, launched in December 2025 as the first large surface combatant built in Indonesia.
KRI Gajah Mada
KRI Gajah Mada, also spelled Gadjah Mada, is the name of two ships of the Indonesian Navy, named after Gajah Mada, the 14th-century military leader of the Majapahit empire.
KRI Nanggala (402)
KRI Nanggala (402), also known as Nanggala II, was an Indonesian Navy Type 209 attack submarine that sank with all 53 aboard in April 2021.
KRISO
KRISO, the Korea Research Institute of Ships and Ocean Engineering (선박해양플랜트연구소), is a South Korean research institute for ships and offshore plants, founded in 1973 and headquartered in Daejeon.
Krivak-class frigate
The Krivak-class frigate, Soviet designation Project 1135 Burevestnik (Буревестник, "storm petrel"), is a series of Soviet and Russian guided-missile frigates built primarily for anti-submarine warfare from 1970 onward.
Kruzenshtern (ship)
Kruzenshtern (Крузенштерн) is a Russian four-masted barque and sail training ship, built in Germany in 1926 as Padua and transferred to the Soviet Union in 1946.
Krylov State Research Centre
Krylov State Research Centre, also known as KSRC, was a Russian state shipbuilding research institute in Saint Petersburg, established in 1894 as the first ship model testing institution in Russia.
Kursk submarine disaster
The Kursk submarine disaster was the sinking of the Russian nuclear submarine K-141 Kursk in the Barents Sea on 12 August 2000, with the loss of all 118 crew members.
Labadee
Labadee, also spelled Labadie, is a private cruise resort on a peninsula on Haiti's northern coast near Cap-Haïtien, leased from the Haitian government by Royal Caribbean since the mid-1980s.