TY JOUR TI METHODS FOR OPTIMIZING THE OPERATION OF PROPULSION SYSTEM ELEMENTS ON SEA-GOING TRANSPORT SHIPS KW Propulsion system KW main engine KW propulsors KW classification KW material and construction KW repair KW mod-ern resource-saving technologies JO Operation of Maritime Transport AU Koperchak, O.P. PY 2024 IS PB Budget Educational Institution of Higher Education “Admiral Ushakov State Maritime University”