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Upkeep may refer to:
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A system administrator, or sysadmin, is a person who is responsible for the upkeep, configuration, and reliable operation of computer systems; especially multi-user computers, such as servers. The system administrator seeks to ensure that the uptime, performance, resources, and security of the computers they manage meet the needs of the users, without exceeding a set budget when doing so.
The Avro Lancaster is a British four-engined Second World War heavy bomber. It was designed and manufactured by Avro as a contemporary of the Handley Page Halifax, both bombers having been developed to the same specification, as well as the Short Stirling, all three aircraft being four-engined heavy bombers adopted by the Royal Air Force (RAF) during the same wartime era.
Operation Chastise was an attack on German dams carried out on 16–17 May 1943 by Royal Air Force No. 617 Squadron, later called the Dam Busters, using a purpose-built "bouncing bomb" developed by Barnes Wallis. The Möhne and Edersee dams were breached, causing catastrophic flooding of the Ruhr valley and of villages in the Eder valley; the Sorpe Dam sustained only minor damage. Two hydroelectric power stations were destroyed and several more damaged. Factories and mines were also damaged and destroyed. An estimated 1,600 civilians – about 600 Germans and 1,000 mainly Soviet forced labourers – died. Despite rapid repairs by the Germans, production did not return to normal until September.
USS Blueback (SS-581) is a decommissioned Barbel-class submarine formerly in the United States Navy. She was the second Navy submarine to bear the name.
USS Volador (SS-490), a Tench-class submarine, was the second ship of the United States Navy to be named for the volador. The contract to build her was awarded to Portsmouth Naval Shipyard in Kittery, Maine, and her keel was laid down on 15 June 1945, but work on her construction was discontinued in January 1946. Her unfinished hulk remained on the ways until August 1947 when construction resumed, now including GUPPY II enhancements to the basic Tench design. Volador was launched on 21 May 1948 sponsored by Mrs. Harriet Rose Morton widow of Commander Dudley W. Morton, and commissioned on 1 October 1948, with Commander H. A. Thompson in command.
USS Joseph Strauss (DDG-16), named for Admiral Joseph Strauss USN (1861–1948), was a Charles F. Adams-class guided missile destroyer of the United States Navy.
A bouncing bomb is a bomb designed to bounce to a target across water in a calculated manner to avoid obstacles such as torpedo nets, and to allow both the bomb's speed on arrival at the target and the timing of its detonation to be pre-determined, in a similar fashion to a regular naval depth charge. The inventor of the first such bomb was the British engineer Barnes Wallis, whose "Upkeep" bouncing bomb was used in the RAF's Operation Chastise of May 1943 to bounce into German dams and explode underwater, with effect similar to the underground detonation of the Grand Slam and Tallboy earthquake bombs, both of which he also invented.
USS Whipple (DE-1062/FF-1062) was a Knox-class frigate commissioned in the United States Navy from 1970 to 1995. In 2002, Whipple was donated to the Mexican Navy and renamed ARM Mina (F-214).
USS Stockham (DD-683), a Fletcher-class destroyer, was a ship of the United States Navy named for Gy.Sgt. Fred W. Stockham, USMC (1881–1918).
USS Union (AKA-106) was a Tolland-class attack cargo ship of the United States Navy, the fourth ship with this name, and served as a commissioned ship for 25 years and 1 month.
USS Alfred A. Cunningham (DD-752), an Allen M. Sumner-class destroyer, is the only ship of the United States Navy to be named for Alfred Austell Cunningham, a USMC officer and aviator.
No. 618 Squadron RAF was a squadron of the Royal Air Force during the Second World War, intended to carry off a variation of the Barnes Wallis-designed bouncing bomb code-named "Highball". Due to various circumstances the "Highball" weapon was never used and the squadron disbanded at the end of the war.
USS Wiltsie (DD-716) was a Gearing-class destroyer in the United States Navy. She was named for Irving Wiltsie. The destroyer entered service in 1946 and remained active with the United States Navy until 1977, when Wiltsie was decommissioned and sold to Pakistan in 1977. The vessel entered service with the Pakistan Navy as PNS Tariq (D165) in 1978. In 1990, the ship was renamed PNS Nazim to allow the name Tariq to be given to a newly-acquired Type 21 frigate. The ship was then transferred to the Pakistan Maritime Security Agency and used as an alongside "at sea" headquarters for the agency. Though afloat, the vessel no longer sails.
USS Chara (AKA-58) was an Andromeda-class attack cargo ship named after a star in the constellation Canes Venatici. She was later converted to an ammunition ship and redesignated (AE-31).
USS Benner (DD/DDR-807) was a Gearing-class destroyer of the United States Navy, named for Marine Second Lieutenant Stanley G. Benner (1916–1942), who was killed during the Battle of Guadalcanal.
USS Barbey (DE-1088/FF-1088) was a Knox-class frigate of the US Navy. Barbey (DE-1088) was laid down on 5 February 1972 by Avondale Shipyards, Inc., Westwego, La.; launched on 4 December 1971; sponsored by Mrs. Daniel E. Barbey, widow of Vice Admiral Barbey; and placed in commission at Long Beach Naval Shipyard on 11 November 1972, Comdr. Theodore B. Shultz in command.
USS Pinnacle (AM-462/MSO-462) was an Aggressive-class minesweeper acquired by the U.S. Navy for the task of removing mines that had been placed in the water to prevent the safe passage of ships.
USS Washtenaw County (LST-1166) was a Terrebonne Parish-class tank landing ship in commission in the United States Navy from 1953 to 1973. Named for Washtenaw County, Michigan, she was the only U.S. Navy vessel to bear the name.
Squadron Leader John Leslie Munro, was a Royal New Zealand Air Force pilot during World War II and the last surviving pilot of the Dambusters Raid of May 1943.
USS Windham County (LST-1170), previously USS LST-1170, was a United States Navy landing ship tank (LST) in commission from 1954 to 1973 which saw service in the Atlantic, Caribbean, and Pacific and served in the Vietnam War.