German submarine U-20 was a Type IIB U-boat of Nazi Germany's Kriegsmarine. Her keel was laid down on 1 August 1935, by Germaniawerft of Kiel as yard number 550. She was commissioned on 1 February 1936. During World War II, she conducted operations against enemy shipping.
USS Razorback (SS-394), a Balao-class submarine, was the only ship of the United States Navy to be named after the razorback, a species of whale found in the far southern reaches of the Pacific Ocean. She is arguably the longest-serving combat front-line submarine still existing in the world, having been commissioned by two different countries for 56 years of active duty. She was in Tokyo Bay during the surrender of Japan. In 2004, the state of Arkansas adopted the submarine and she is now a museum ship at the Arkansas Inland Maritime Museum.
German submarine U-75 was a Type VIIB U-boat of Nazi Germany's Kriegsmarine during World War II. U-75 was moderately successful in her early career in the Battle of the Atlantic, but in autumn 1941 she was dispatched to the Mediterranean Sea with poor results, leading to the eventual destruction of the boat and her crew.
German submarine U-23 was a Type IIB U-boat of Nazi Germany's Kriegsmarine, built in Germaniawerft, Kiel. She was laid down on 11 April 1936 and commissioned on 24 September.
The Bronstein-class frigates were United States Navy warships, originally laid down as ocean escorts, but were all redesignated as frigates on 30 June 1975 in the United States Navy 1975 ship reclassification and their hull designation changed from DE to FF.
SM U-68 was a Type U 66 submarine or U-boat for the German Imperial Navy during the First World War. She had been laid down in December 1913 as U-9 of the U-7 class for the Austro-Hungarian Navy but was sold to Germany, along with the others in her class, in November 1914. Under German control, the class became known as the U 66 type and the boats were renumbered; U-9 became U-68, and was redesigned and reconstructed to German specifications. She was launched in June 1915 and commissioned in August.
The Glen-class tug is a class of naval tugboat operated by the Royal Canadian Navy. Constructed in Canada, the class entered service between 1975 and 1977. The five vessels that comprise the class are split between the two major naval bases of the Royal Canadian Navy. The Royal Canadian Navy operated a fleet of tugboats during the Second World War which were also named the Glen class. The vessels of the current Glen class are each named after one of the vessels of the earlier class.
German submarine U-564 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during the Second World War. The RAF sank her in the Bay of Biscay on 14 June 1943.
German submarine U-21 was a Type IIB U-boat of Nazi Germany's Kriegsmarine. Her keel was laid down 4 March 1936, by Germaniawerft of Kiel as yard number 551. She was commissioned on 3 August 1936. During World War II, she conducted operations against enemy shipping.
SM U-117 was a Type UE II long-range minelayer submarine of the Imperial German Navy. She was laid down in 1917, at Hamburg, Germany, by Aktiengesellschaft Vulcan and launched on 10 December 1917. She was commissioned in the Imperial German Navy on 28 March 1918, with Kapitänleutnant Otto Dröscher in command. After shakedown, U-117 was posted to the U-Kreuzer Verband on 1 June 1918. Over the next five weeks, she completed fitting out at Kiel.
German submarine U-223 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.
German submarine U-578 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.
Kommuna is a submarine salvage ship in service with the Russian Navy's Black Sea Fleet and the world's oldest active duty naval vessel. A double-hulled catamaran, she was laid down at the Putilov Factory in St. Petersburg in November 1912 as Volkhov. The ship was launched the following year, and commissioned on 14 July 1915. She was renamed Kommuna on 31 December 1922. Kommuna has served in the Russian Imperial, Soviet, and Russian Federation navies through the Russian Revolution and two World Wars.
German submarine U-806 was a Type IXC/40 U-boat built for Nazi Germany's Kriegsmarine during World War II.
The Type V ship is a United States Maritime Commission (MARCOM) designation for World War II tugboats. Type V was used in World War II, Korean War, and the Vietnam War. Type V ships were used to move ships and barges. Type V tugboats were made of either steel or wood hulls. There were four types of tugboats ordered for World War II. The largest type V design was the sea worthy 186-foot (57 m) long steel hull, V4-M-A1. The V4-M-A1 design was used by a number of manufacturers; a total of 49 were built. A smaller steel hull tugboat was the 94-foot (29 m) V2-ME-A1; 26 were built. The largest wooden hull was the 148-foot (45 m) V3-S-AH2, of which 14 were built. The smaller wooden hull was the 58-foot (18 m) V2-M-AL1, which 35 were built. Most V2-M-AL1 tugboats were sent to the United Kingdom for the war efforts under the lend-lease act. The Type V tugs served across the globe during World War II including: Pacific War, European theatre, and in the United States. SS Farallon, and other Type V tugs, were used to help built Normandy ports, including Mulberry harbour, on D-Day, 6 June 1944, and made nine round trips to Normandy to deliver Phoenix breakwaters.
The Saphir-class submarines were a class of six submarines built in France between 1926 and 1935 for the French Navy. Most saw action during World War II for the Vichy French Navy or the Free French Naval Forces. Three were captured by Italian forces but not used.
Kigoriak is a Russian icebreaking anchor handling tug supply vessel. Built by Saint John Shipbuilding & Dry Dock Company for Canadian Marine Drilling (Canmar) in 1979 as Canmar Kigoriak, she was the first commercial icebreaking vessel developed to support offshore oil exploration in the Beaufort Sea.
Spasatel Vasily Bekh (SB-739) was a Project 22870 rescue tug in the Russian Navy that was launched in 2016 and sunk during the 2022 Russian invasion of Ukraine.
Pasteur was a French Navy Redoutable-class submarine of the M6 series commissioned in 1932. She participated in World War II until she was scuttled in June 1940.
Intibah was a ship used by the Ottoman Navy as a tugboat and minelayer in World War I.
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