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What is the function of an XO in a submarine? Can a submarine captain function without an XO? - Quora
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NYPD Midtown South on Twitter: "Captain Gault TSU CO (L), Captain Clement MTS XO (R), welcoming Captain Kalicovic MTS XO (C) to the Midtown Precinct South family. Congratulations & we all look
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USS Connecticut CO, XO, COB Relieved Over Collision in South China Sea 'Due to Loss of Confidence' - USNI News
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What is the function of an XO in a submarine? Can a submarine captain function without an XO? - Quora
Is it true that a captain can be relieved by the first officer, ship's doctor, or consensus of the crew? - Quora
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