The submariner’s trade required more than skill. It required instinct, and an artist’s touch; monomaniacal confidence, and the aggressiveness of a professional boxer. Mancuso had all of these things. He had spent fifteen years learning his craft, watching a generation of commanders as a junior officer, listening carefully at the frequent round-table discussions which made submarining a very human profession, its lessons passed on by verbal tradition. Time on shore had been spent training in a variety of computerized simulators, attending seminars, comparing notes and ideas with his peers.
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