The United States Navy, United States Coast Guard, and United States National Oceanic and Atmospheric Administration (NOAA) use a hull classification symbol to identify their ships by type and by individual ship within a type. The system is analogous to the pennant number system that the Royal Navy and other European and Commonwealth navies use.
A seaplane tender is a boat or ship that supports the operation of seaplanes. Some of these vessels, known as seaplane carriers, could not only carry seaplanes but also provided all the facilities needed for their operation; these ships are regarded by some as the first aircraft carriers and appeared just before the First World War.
USS Puget Sound was a Commencement Bay-class escort carrier of the United States Navy. The Commencement Bay class were built during World War II, and were an improvement over the earlier Sangamon class, which were converted from oil tankers. They were capable of carrying an air group of 33 planes and were armed with an anti-aircraft battery of 5 in (127 mm), 40 mm (1.6 in), and 20 mm (0.8 in) guns. The ships were capable of a top speed of 19 knots, and due to their origin as tankers, had extensive fuel storage.
The Bogue class were a class of 45 escort carriers built in the United States for service with the US Navy and the Royal Navy, through the Lend-Lease program, during World War II. Following the war, ten Bogue-class ships were kept in service by the US Navy and were reclassified for helicopter and aircraft transport operations.
The Type 61 Salisbury class was a class of the Royal Navy aircraft direction (AD) frigate, built in the 1950s. The purpose of the aircraft direction ships was to provide radar picket duties at some distance from a carrier task force and offer interception guidance to aircraft operating in their area.
USS Currituck (AV-7) was the first of four Currituck class seaplane tenders, and was nicknamed the Wild Goose. She was built during World War II and served during the Cold War.
The 3-inch/50-caliber gun in United States naval gun terminology indicates the gun fired a projectile 3 inches (76 mm) in diameter, and the barrel was 50 calibers long. Different guns of this caliber were used by the U.S. Navy and U.S. Coast Guard from 1900 through to 1990 on a variety of combatant and transport ship classes.
HMS Salisbury was a Salisbury-class or Type 61 aircraft direction frigate of the British Royal Navy. Completed in the late 1950s, Salisbury served through the 1960s and 1970s, participating in the Beira Patrol, blockading against Rhodesia and the confrontation with Iceland over fishing rights that was known as the Cod Wars. Salisbury became a harbour training ship in 1980, before being sunk as a target in 1985.
The Highflyer-class cruisers were a group of three second-class protected cruisers built for the Royal Navy in the late 1890s.
HMCS Saguenay was a St. Laurent-class destroyer that served in the Royal Canadian Navy and later the Canadian Forces from 1956–1990. She was the second vessel in her class and the second Canadian naval unit to carry the name HMCS Saguenay. After being discarded by the Canadian Forces, the ship was sunk as an artificial reef off the coast of Nova Scotia.
The aircraft cruiser is a warship that combines the features of the aircraft carrier and a surface warship such as a cruiser or battleship.
HMS Empress was a seaplane carrier of the Royal Navy (RN) that served during the First World War. Converted from the Cross-Channel packet ship Empress, the ship's aircraft conducted aerial reconnaissance, observation and bombing missions in the North Sea and Eastern Mediterranean. During the last year of the war, she conducted anti-submarine patrols in the Mediterranean. Empress was returned to her owners in 1919 and was then sold to a French company in 1923. She was scrapped in 1933.
The second USS Barataria (AVP-33) was a United States Navy Barnegat-class seaplane tender in commission from 1944 to 1946. She saw service in the later stages of World War II and was decommissioned postwar. She then was transferred to the United States Coast Guard and was in commission as the Coast Guard cutter USCGC Barataria (WAVP-381), later WHEC-381 from 1949 to 1969, serving in the Cuban Missile Crisis and the Vietnam War during her lengthy Coast Guard career.
Akitsushima (秋津洲) was a seaplane tender of the Imperial Japanese Navy (IJN), serving during World War II from 1942 until being sunk in September 1944.
The Ashland-class dock landing ship were the first class of dock landing ship of the United States Navy. They were built during World War II. A dock landing ship is a form of auxiliary warship designed to support amphibious operations. Eight ships were built for the United States Navy and they remained in US service until the 1960s. Two of the class were sold for export overseas, with one joining the Republic of China Navy and the other the Argentinian Navy. The two transferred ships stayed in service until the 1980s. All eight ships were scrapped.
The Hamul class were a class of destroyer tenders that were initially constructed as attack cargo ships for the United States Navy during World War II. They operated from 1941 to 1969.
The flight-deck cruiser was a proposed type of aircraft cruiser,, designed by the United States Navy during the Interwar period. Several designs were proposed for the type, but none was approved for construction. The final design was developed just before World War II, and the entry of the United States into the war saw the project come to an end.
Aircraft repair ship is a naval auxiliary ship designed to provide maintenance support to aircraft. Aircraft repair ships provide similar services to seaplane tenders, that also cared for the crew. Aircraft repair ships had their own stores of spare parts, like a depot ship. Aircraft repair ships had repair personnel and equipment to repair failures or battle damage on aircraft. Aircraft repair ships also did regular aircraft maintenance.
United States Navy 
