Megi-class submarine
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The Megi class are a group of six specially-modified Type 209 submarines built for the Menghean Navy. The first two were built in Eisenmaat, and the remaining four were built at the Gyŏngsan Songsu-do Naval Yard in Menghe. The design is based on the Type 209/1400, but with a lengthened forward hull to fit Menghean 533mm torpedoes, which are longer than the standard torpedo models used in Eisenmaat.
History
The Democratic People's Republic of Menghe built a number of large diesel-electric submarines, derived from the Letnian Romeo class. Following the Decembrist Revolution, the new Menghean government sought a new foreign supplier for its next submarine family, as the Romeos and their domestically built successors were noisy and unreliable. Representatives of the Menghean Navy contacted shipbuilders in Eisenmaat and Letnia in 1989, and eventually selected a custom modified variant of the Type 209 class.
Under the agreement signed between Menghe and Eisenmaat, the first two boats were laid down in Eisenmaat in 1991, and would be built there according to Menghean custom specifications. The next four would be built in Menghe, using a mix of proprietary parts shipped from Eisenmaat and local components manufactured in Menghe.
Armament
Each Megi-class submarine is armed with eight 533mm torpedo tubes and can carry 14 torpedoes. These are Menghean-type torpedoes, with a maximum length of 7.9 meters. Each torpedo can be replaced with two mines for a minelaying mission; these are deployed through the torpedo tube.
Refits
Over the course of the 2010s, all of Menghe's Megi-class submarines went through mid-life refits. The modifications included the ability to fire the YDH-26J anti-ship missile from a torpedo-tube canister. Compatibility with the longer-range YDH-28 was apparently not included. The boats also received new electronics, sensors, and communication systems.