Nyrdanish Destroyers, 1920-1926
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F-1920-class Torpedo Boat Leaders
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Following the large-scale inclusion of motor torpedo boats into the fleet, the admiralty envisioned a class of larger torpedo boats that would serve as command vessels for the squadrons. This ultimately resulted in the F-1920-class boats. Armed with two 88mm guns and six torpedo tubes, two of which were in fixed mounts inside the bow, along with stern mine/depth bomb ramps, they boasted quite a lot of firepower for their size. They were powered by small steam turbines, giving them a top speed of 34 knots.
The final five hulls were extended by 3 meters to facilitate the addition of a hydrophone and its operating room.
Despite being obsolete by at least decade and suffering from serious issues with spray and deck wash, they managed to rack up a number of kills during WW2.
Ships in class: (laid down-launched-commissioned - fate)
F-190 1920-1921-1922-Sunk in Hæjenjäi Harbor, 1941
F-191 1920-1921-1922-????
F-192 1920-1921-1922-Lost in training accident, 1935
F-193 1920-1921-1922-Sunk in Hæjenjäi Harbor, 1941
F-194 1920-1921-1922-????
F-195 1920-1922-1923-Sunk in Korsakov Harbor, 1942
F-196 1920-1922-1923-????
F-197 1920-1922-1923-????
F-198 1920-1922-1923-????
F-199 1920-1922-1923-Sunk in Korsakov Harbor, 1942
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F-1922-class Destroyers
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The F-1922-class was the KNF's first class of destroyer equipped with complete anti-submarine equipment as designed, equipped with hydrophones and carrying depth bomb racks and launchers. They could reach a speed of 35 knots and carried an additional armament of three 4" guns and four twin torpedo launchers.
The aftmost gun mount suffered from deck wash, and the vessel was extremely cramped. They had been mothballed in the 1930s but were brought back into service for convoy duties during WW2.
Ships in class: (laid down-launched-commissioned - fate)
F-200 1922-1923-1924-Sunk on convoy duty, 1942
F-201 1922-1923-1924-Sunk on convoy duty, 1942
F-202 1922-1923-1924-Sunk on convoy duty, 1941
F-203 1922-1923-1924-Sunk on convoy duty, 1942
F-204 1922-1923-1924-Sunk on convoy duty, 1944
F-205 1922-1923-1924-Ran aground and broken up, 1929
F-206 1922-1923-1924-Sunk on convoy duty, 1942
F-207 1922-1923-1924-Sunk on convoy duty, 1944
F-208 1922-1923-1924-Sunk on convoy duty, 1941
F-209 1922-1923-1924-Sunk on convoy duty, 1943
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F-1924-class Destroyers
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The F-1924s were built to the same pattern as the 1922s, but had an enlarged hull which facilitated the addition of a second midships 4" gun. They were also less cramped and the aftmost gun mount was elevated to prevent it from being awash when the ship was in motion. They were capable of reaching 36 knots in calm seas, though like her contemporaries, this was rarely achieved.
Unlike their predecessors, these vessels were still in service through the 1930s and were among the first vessels to see combat in the Pacific War.
Ships in class: (laid down-launched-commissioned - fate)
F-210 1924-1925-1926-????
F-211 1924-1925-1926-Sunk on convoy duty, 1942
F-212 1924-1925-1926-Sunk in the attack on Hæjenjäi, 1941
F-213 1924-1925-1926-????
F-214 1924-1925-1926-????
F-215 1924-1925-1926-Sunk on convoy duty, 1944
F-216 1924-1925-1926-????
F-217 1924-1925-1926-Sunk on convoy duty, 1941
F-218 1924-1925-1926-????
F-219 1924-1925-1926-????
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F-1926-class Destroyer Leaders
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First 5 ships as built
Last 5 ships as built
The F-1926-class was designed as a dedicated destroyer flotilla leader, and was based on the F-1924 hull. The design was lengthened and given newer machinery, allowing the vessels to reach speeds of over 37 knots in calm sea states. Compared to F-1924, they carried an additional 4" gun in an aft mounting, and had improved torpedo launchers. They also were the first destroyers in the fleet to be equipped with fire control directors. The additions that stood out the most were the comparably immense suites of radio equipment, and the two-level bridge, giving the flotilla command crew a separate space.
The last five hulls were also equipped with a more advanced hydrophone system, a sort of stepping stone between hydrophones and proper SONAR.
By World War 2 they had largely fallen out of use as flotilla leaders, having been replaced by light cruisers and more modern DL designs, though they still saw limited service in their intended role. They were mostly used as regular DDs during the war, though unsuitable for the role compared to modern destroyers.
Ships in class: (laid down-launched-commissioned - fate)
F-220 1926-1927-1928-????
F-221 1926-1927-1928-????
F-222 1926-1927-1928-????
F-223 1926-1927-1928-Sunk during the April Gauntlet, 1942
F-224 1926-1927-1928-????
F-225 1926-1928-1929-????
F-226 1926-1928-1929-????
F-227 1926-1928-1929-????
F-228 1926-1928-1929-Sunk during the Battle of Attu, 1942
F-229 1926-1928-1929-????