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Chasing (French: ciselure) or embossing is a similar technique in which the piece is hammered on the front side, sinking the metal. The two techniques are often used in conjunction. Many metals can be used for chasing and repoussé work, including gold, silver, copper, and alloys such as steel, bronze, and pewter.
Harbor Clearance Unit One, or HCU-One, was established at Subic Bay on 1 February 1966 with a hand-picked cadre of five officers and sixty-five enlisted men. [1] The unit was under the operational and administrative control of Commander Service Group Three; Vietnam detachments were under the operational control of Commander, Naval Forces Vietnam .
Hunt-class mine countermeasures vessel (13 ships, launched 1978–1988) mine countermeasures vessels; Venturer-class minesweeper (2 ships, bought 1979) deep-water single-role minesweepers; River-class minesweeper (12 ships, launched 1982–1985) deep-water single-role minesweepers; Sandown-class minehunter (12 ships, launched 1990–2001 ...
The fuzes on influence mines allow many different permutations, which complicates the clearance process. [ 6 ] Mines with ship-counters, arming delays, and highly specific target signatures in mine fuses can falsely convince a belligerent that a particular area is clear of mines or has been swept effectively because a succession of vessels have ...
A capsized vessel may sink or remain afloat, and a sinking vessel may roll over while sinking. The process of recovering a vessel from a capsize is called righting. The salvage of a capsized vessel may involve righting on site, or towing to a more sheltered area before righting; possibly including refloating, either before or after righting. [6 ...
Squat effect from a combination of vertical sinkage and a change of trim may cause the vessel to dip towards the stern or towards the bow. This is understood to be a function of the Block coefficient of the vessel concerned, finer lined vessels Cb <0.7 squatting by the stern and vessels with a Cb >0.7 squatting by the head or bow. [1]
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