89:. The class was made up of three 'batches'; the main differences between each batch being variations in propulsion machinery and weapons outfit. 26 were built for the Royal Navy, some of which later saw service in the navies of Chile, Ecuador, New Zealand, and Pakistan.
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The Type 12 designation is sometimes used to refer to warship classes based on the Type 12 design, but constructed or operated by other naval forces. Some of these are still in service as of 2009:
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Purvis,M.K., 'Post War RN Frigate and Guided
Missile Destroyer Design 1944-1969', Transactions, Royal Institution of Naval Architects (RINA), 1974
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system. Nine were built for the Royal Navy, two for the Royal New
Zealand Navy, and three (as the 'President class') for the
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design was used as the basis for six ships (three of each class), with the weapons outfit the main difference between them.
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Jeremy, John C. (2005). "Australian shipbuilding and the impact of World War II". In
Stevens, David; Reeve, John (eds.).
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Comprehensive website on the design and history of the
Leander class and related frigate designs
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design but with Dutch radars, six ships were built. All six were later transferred to the
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was optimised towards anti-submarine warfare and fleet escort duties, and fitted with the
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class, this class consisted of four ships, two purpose-built, and two former Royal Navy
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The third class, designed as an all-purpose warship, was known as the Type 12 Improved (
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system (which was retrofitted to the first two), and two to an
Australian-designed
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design, two to the same design but modified to carry a variable-depth sonar and an
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203:-class frigate. All of them are renamed with Indonesian National Heroes.
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The Navy and the Nation: the influence of the Navy on modern
Australia
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Marriott,Leo, 'Royal Navy
Frigates Since 1945', Second Edition,
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designed during the 1950s and constructed during the 1960s.
153:. Six were constructed to an updated design based on the
45:. Six operated in the Royal Navy, with one loaned to the
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refers to several ship classes, most commonly the three
38:, designed as convoy escorts, were later named the
236:. Crows Nest, NSW: Allen & Unwin. pp.
221:, Published by Ian Allan Ltd (Surrey, UK), 1990
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173:frigates of the Indian Navy. An enlarged
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56:The design of the Type 12 Modified (
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