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This topic has appeared in the trending rankings 1 time(s) in the past year. While it does not trend frequently, its appearance suggests a renewed or concentrated surge of public interest.
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This topic has appeared in the English Wikipedia rankings 1 time. It first appeared on 2026-07-22 and was most recently seen on 2026-07-22.
Raigei (らいげい ) is a diesel-electric submarine of the Japan Maritime Self-Defense Force, and the fourth boat of the Taigei class. Her name has not been used by the Imperial Japanese Navy, making Raigei the first naval vessel to be named in this manner. Like her older sister ships, Raigei will be fitted with dedicated living quarters for up to six female crew members from the time of commissioning. She is also the first boat to be fitted with the Kawasaki 12V 25/31 diesel engine.
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