Nyrdanish Destroyers, 1928-1934
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F-1928-class Torpedo Boat Leaders
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Following the same pattern as the previous F-1920 class, the F-1928 class of torpedo boat leaders was largely identical. They carried the same armament of 4x88mm guns and 6x533mm torpedoes. The straight bow was ditched in favor of a faster raked bow, they were fitted with more modern hydrophones, a windshield was added to the flying bridge, and her suite of radio equipment was almost doubled. They reached a trial speed of 35 knots, though normally operated at around 14.
Being the second most modern class of torpedo boat leader on the outbreak of the war, they were involved in much of the opening action. They were well liked, unlike their predecessors, and were critical in keeping Nyrdanmark's shores safe from Japanese submarine raids.
Ships in class: (laid down-launched-commissioned - fate)
F-230 1928-1929-1930-????
F-231 1928-1929-1930-Sunk in Hæjenjäi Harbor, 1942
F-232 1928-1929-1930-Sunk off the coast of Sakhalin, 1943
F-233 1928-1929-1930-Sunk off the coast of Langtjord, 1942
F-234 1928-1929-1930-????
F-235 1929-1930-1931-????
F-236 1929-1930-1931-Sunk off the coast of Sakhalin, 1942
F-237 1929-1930-1931-????
F-238 1929-1930-1931-????
F-239 1929-1930-1931-????
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F-1930-class Destroyers
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The F-1930 class signaled a major paradigm shift in KNF destroyer design, mostly brought on by their analysis of Japan's recently commissioned Fubuki-class destroyers. The pattern set by the F-1922 and F-1924 classes was completely done away with, resulting in ships that were bigger, faster, and better armed. They exchanged the inefficient broadside torpedo layout for three triple 533mm launchers along the centerline, and their main armament was 6x127mm in three twin turrets. In another departure from the norm, she carried a single set of reloads for her torpedo tubes, though these facilities would be removed by the time of the Second World War. Their propulsion consisted of four oil-fired boilers feeding a pair of steam turbines with geared drives, for a total shaft horsepower of 50,000 and a trial speed of 38 knots.
On the more political side, the class was to contain 20 hulls instead of the usual 10, due to again, worries over the Fubuki-class destroyers. During the design process for the class, the shipyards at Trellin and Sleið built several new slipways to facilitate the rapid construction of all of the hulls.
The class was a favorite of captain and admiral alike, and set the standard by which all other Nyrdanish destroyers would be measured. During the war they were the oldest destroyers to still be largely effective, being overshadowed by their younger cousins but still serving well.
Ships in class: (laid down-launched-commissioned - fate)
F-240 1930-1931-1932-????
F-241 1930-1931-1932-????
F-242 1930-1931-1932-????
F-243 1930-1931-1932-Sunk during the Battle of Attu, 1942
F-244 1930-1931-1932-????
F-245 1930-1931-1932-????
F-246 1930-1931-1932-????
F-247 1930-1931-1932-????
F-248 1930-1931-1932-Sunk at Korsakov, 1941
F-249 1930-1931-1932-Sunk during the April Gauntlet, 1942
F-250 1931-1932-1933-????
F-251 1931-1932-1933-????
F-252 1931-1932-1933-????
F-253 1931-1932-1933-????
F-254 1931-1932-1933-????
F-255 1931-1932-1933-Sunk during the Battle of Attu, 1942
F-256 1931-1932-1933-????
F-257 1931-1932-1933-????
F-258 1931-1932-1933-????
F-259 1931-1932-1933-????
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F-1932-class Destroyers
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The F-1932 class was the result of lengthening the F-1930 and adding a superfiring gun mount forward, with most of the design remaining unchanged. The class dropped the torpedo reloads to allow for adding the fourth turret, though her trial speed still dropped to 37.3 knots.
The class was largely unremarkable, overshadowed in both design and wartime service by its younger and older cousins.
Ships in class: (laid down-launched-commissioned - fate)
F-260 1932-1933-1934-????
F-261 1932-1933-1934-????
F-262 1932-1933-1934-???
F-263 1932-1933-1934-????
F-264 1932-1933-1934-Sunk at Hæjenjäi, 1941
F-265 1932-1933-1934-????
F-266 1932-1933-1934-Sunk at Hæjenjäi, 1941
F-267 1932-1933-1934-????
F-268 1932-1933-1934-????
F-269 1932-1933-1934-????
F-270 1933-1934-1935-????
F-271 1933-1934-1935-????
F-272 1933-1934-1935-????
F-273 1933-1934-1935-????
F-274 1933-1934-1935-????
F-275 1933-1934-1935-Sunk during the Battle of the Kuril Islands, 1941
F-276 1933-1934-1935-????
F-277 1933-1934-1935-Sunk during the Battle of the Kuril Islands, 1941
F-278 1933-1934-1935-????
F-279 1933-1934-1935-????
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F-1934-class Destroyer Leaders
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With the LNT in effect, the KNF had to resort to experimental measures to get the large destroyer leaders they wanted, resulting in the F-1934 class. They had a rather futuristic hullform, with an extremely fine hull, having a Cb of only 0.339, and a curious combination of purposely left out structure and a convex bow sheer, all in attempt to reduce the ship's displacement to fit it under the treaty limit of 1,850 tons for destroyer leaders.
It had worked, not only did she have a normal displacement of 1,915 tons, low enough that she could be lightened for trials in order to fit within the treaty, but the experimental hullform was actually stronger than previous destroyer hulls, resulting in a convex bow sheer being adopted for every new class of destroyer until the KNF abandoned the raised forecastle design.
She had an armament of ten 127mm guns in five twin turrets, along with two 533mm torpedo launchers on the centerline, making her one of the hardest hitting destroyers of her time. She reached a trial speed of 36 knots and had a range of 4,000 nm at 14 kts. Being a destroyer leader, she carried the most extensive suite of radio gear of any Nyrdanish destroyer, having much of the same equipment as light cruisers of her time.
Their service during the war would find them mostly operating as regular destroyers, with light cruisers increasingly taking the task of leading destroyer squadrons, though they did still see service in their intended role.
Ships in class: (laid down-launched-commissioned - fate)
F-280 1934-1935-1936-????
F-281 1934-1935-1936-????
F-282 1934-1935-1936-????
F-283 1934-1935-1936-????
F-284 1934-1935-1936-????
F-285 1934-1935-1936-????
F-286 1934-1935-1936-????
F-287 1934-1935-1936-????
F-288 1934-1935-1936-????
F-289 1934-1935-1936-????