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The American Holland-class submarines, also AG class or A class, were Holland 602 type submarines used by the Imperial Russian and Soviet Navies in the early 20th century. The small submarines participated in the World War I Baltic Sea and Black Sea theatres and a handful of them also saw action during World War II. ==Development== The AG type was designed by John Philip Holland at Electric Boat Company. The design was known as Holland 602GF/602L,〔(Тип "АГ" (Американский Голланд) ) ''((Translation ))''〕〔(Allied Warships: Submarines - A (AG) class )〕 which was very similar to the American H class. The Russian abbreviation "AG" comes from ''"Amerikansky Golland"'' ("American Holland"). In 1916, the Russian Naval Ministry ordered 11 units. The boats were built at Barnet Yard in Vancouver, Canada as knockdown kits. The kits were transported by ship to Vladivostok and over the Trans-Siberian Railroad to European Russia. The boats were assembled at the Baltic Shipyard in Saint Petersburg and its subsidiary in Nikolayev by the Black Sea (now Mykolaiv, Ukraine).〔 Like some of the British H-class boats (of the same design), they were equipped with Fessenden transducers, an early form of sonar.〔 The Russian Revolution of 1917 slowed assembly in Nikolayev, but they were completed after much travail. In 1918, submarines ''AG 21'' – ''AG 26'' were included the Ukrainian State Navy.〔(ФЛОТОВОДЦІ УКРАЇНИ ) 〕 In 1920, one (''AG 22'') was taken over by the Russian White movement, eventually evacuating to Bizerta with Wrangel's fleet and five were taken over by the Red Army after the Civil war. The submarines were all completed after the war. All surviving Soviet AG submarines were modernized before World War II.〔 The Russians had also ordered an additional six submarines, but these could not be delivered due to the Revolution. These were instead taken over by the U.S. Navy as the H class in 1918. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「American Holland-class submarine」の詳細全文を読む スポンサード リンク
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