F-class Destroyer (other)
F-class destroyer may refer to: * Tribal-class destroyer (1905), twelve ships for the Royal Navy that served in World War I * F-class destroyer (1934), nine ships for the Royal Navy that served in World War II See also * F class (other) Class F or F class may refer to: * NZR F class, steam locomotives used in New Zealand * Class F, a stellar classification * Class F, a type of race car sometimes referred to as F-P as well, for F-Production * Class F, an airspace class defined ...

Tribal-class Destroyer (1905)
The Tribal or F class was a class of destroyers built for the Royal Navy. Twelve ships were built between 1905 and 1908 and all saw service during World War I, where they saw action in the North Sea and English Channel as part of the 6th Flotilla and Dover Patrols. Design The preceding River- or E-class destroyers of 1903 had made on the provided by triple expansion steam engines and coal-fired boilers, although was powered by steam turbines.Chesneau and Kolesnik 1979, p. 99. In November 1904, the First Sea Lord "Jackie" Fisher proposed that the next class of destroyers should make at least and should use oil-fired boilers and steam turbines as a means of achieving this.Friedman 2009, pp. 106–107. This resulted in a larger ship to provide the required doubling of installed power over their predecessors, but also pushed the design to the limits of capability of contemporary technology. As a result, the Tribals were severely compromised and a somewhat retrograde step ...
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F-class Destroyer (1934)
The E and F-class destroyers were a group of 18 destroyers built for the Royal Navy during the 1930s. The ships were initially assigned to the Home Fleet, although they reinforced the Mediterranean Fleet during the Italian invasion of Abyssinia of 1935–36 and enforced the Non-Intervention Agreement during the Spanish Civil War of 1936–1939. After the beginning of the Second World War in August 1939, the E-class ships were mostly assigned to escort duties under the Western Approaches Command, while the Fs were assigned to escort the ships of the Home Fleet. Between them they sank four German submarines through March 1940 while losing only one ship to a submarine. Most of the sisters were committed to the Norwegian Campaign in April–June where they helped to sink one German destroyer and a submarine. The two E-class minelayer-destroyers helped to evacuate Allied troops from Dunkirk in May–June. Most of the Fs were sent to Gibraltar around the end of June and formed pa ...
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