AB / Fitter (Матрос-слесарь) / Fitter (Слесарь) / Motorman / Fitter (Моторист-слесарь) / Welder (Сварщик судовой)

Motorman, Motorman-welder, Motorman / Fitter, Fitter, Oiler

Motorman, Motorman / Fitter, Motorman-welder, Oiler, OS / Motorman, Rating forming part of a watch in a manned engine-room or designated to perform duties in a periodically unmanned engine-room