Utente:Kagemusha!/Sandbox: differenze tra le versioni

Versione delle 13:32, 26 dic 2018

Versione delle 20:48, 26 dic 2018

Riga 1:

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La '''classe Loch''' fu una classe di [[Fregata (nave)|fregate]] [[Lotta antisommergibile|antisommergibile]] costruite dalla [[Royal Navy]] durante la [[seconda guerra mondiale]]. Il loro progetto fu innovativo, basato sull'esperienza fatta in tre anni di [[Battaglia dell'Atlantico (1939-1945)|battaglia dell'Atlantico]] ed attento all'evoluzione tecnologica occorsa durante la guerra.

The '''Loch class''' was a class of anti-submarine (A/S) frigate built for the Royal Navy and her Allies during World War II. They were an innovative design based on the experience of three years of fighting in the Battle of the Atlantic and attendant technological advances.

== Progetto ==

Le Loch furono pensate a partire dallo scafo della precedente classe River, ma con un'insellatura del ponte ed una stellatura della prua maggiori per migliorare la tenuta di mare. Lo scafo fu anche pensato per la prefabbricazone di massa: le sezioni di nave venivano costruite e poi [[Rivettatura|rivettate]] o [[Saldatura|saldate]] in cantiere. Furono quindi eliminate dallo scafo tutte le curve possibili, creando così un evidente nodo dove l'insellatura di prua incontrava il ponte piatto, a proravia della plancia.

The Lochs were based upon the hull of the preceding River class with increased sheer and flare to improve seakeeping and modified to suit it to mass pre-fabrication, with sections riveted or welded together at the shipyard. Accordingly, as many curves as possible were eliminated, producing a noticeable kink in the main deck where the increased sheer forwards met the level abreast the bridge.

The fighting capability of the Loch class was a great jump forward, being based around the new Squid ahead-throwing A/Smortar. Previously, escorts had attacked with depth charges, requiring the attacking vessel to pass over the submerged submarine and drop warheads over the stern. Consequently, the ahead-looking ASDIC (sonar) set lost contact at the vital moment before the weapons were launched, allowing a skilled submarine commander to take successful evasive action. Squid, however, lobbed three 12-inch (300 mm), 390 pound warheads up to 600 yards (550 m) ahead of the launching vessel falling in a triangular pattern with sides of 40 yards (37 m). As the clockwork fuses detonated the warheads at a depth determined by the ships' ASDIC set, the Squid therefore attacked in full ASDIC contact for greater accuracy and lethality. Two mortars were carried, with the bombs set to explode at different depths in order to create a convergent pressure wave to crush the hull of a submarine. The first successful "kill" was by ''Loch Killin'' on 31 July 1944, sinking the German submarine ''U-333''. Such was the utility of Squid that depth charge carriage was reduced to only 15, with a single rack and a pair of throwers being carried at the stern, resulting in a clear quarterdeck compared to the eight throwers, two racks and stowage for 100 plus charges in the Rivers.

Riga 74:

|Trasferita alla Royal New Zealand Navy il 1 ottobre 1948 come HMNZS ''Hawea''. Veduta nel settembre 1965 per essere demolita ad [[Hong Kong]].

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War Programme 1943 (26 unità completate, incluse due come navi deposito per la difesa costiera):

Riga 293 ⟶ 292:

|13 luglio 1946

|Demolita nell'agosto 1965 a [[Dalmuir]]

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== Navi trasferite ==