# Marine Engineers and Naval Architects > Design, develop, and evaluate the operation of marine vessels, ship machinery, and related equipment, such as power supply and propulsion systems. - Code: 17-2121.00 (O*NET-SOC; SOC 2018 17-2121) - Family: [Architecture & Engineering](https://foundation.org.ai/occupations#family-17), one of its 59 occupations - Tasks: 30 tasks (27 core, 1 supplemental and 2 not rated) - Page: https://foundation.org.ai/occupations/17-2121.00 - JSON: https://foundation.org.ai/data/tasks/17-2121.00.json ## What the work is made of 1. Design complete hull and superstructure according to specifications and test data, in conformity with standards of safety, efficiency, and economy. Core task · Task 21887 · Rated by O*NET analysts, November 2020 2. Supervise other engineers and crew members and train them for routine and emergency duties. Core task · Task 21888 · Rated by O*NET analysts, November 2020 3. Study design proposals and specifications to establish basic characteristics of craft, such as size, weight, speed, propulsion, displacement, and draft. Core task · Task 21889 · Rated by O*NET analysts, November 2020 4. Perform monitoring activities to ensure that ships comply with international regulations and standards for life-saving equipment and pollution preventatives. Core task · Task 21890 · Rated by O*NET analysts, November 2020 5. Oversee construction and testing of prototype in model basin and develop sectional and waterline curves of hull to establish center of gravity, ideal hull form, and buoyancy and stability data. Core task · Task 21891 · Rated by O*NET analysts, November 2020 6. Evaluate performance of craft during dock and sea trials to determine design changes and conformance with national and international standards. Core task · Task 21892 · Rated by O*NET analysts, November 2020 7. Prepare plans, estimates, design and construction schedules, and contract specifications, including any special provisions. Core task · Task 21893 · Rated by O*NET analysts, November 2020 8. Check, test, and maintain automatic controls and alarm systems. Core task · Task 21894 · Rated by O*NET analysts, November 2020 9. Design layout of craft interior, including cargo space, passenger compartments, ladder wells, and elevators. Core task · Task 21895 · Rated by O*NET analysts, November 2020 10. Evaluate operation of marine equipment during acceptance testing and shakedown cruises. Core task · Task 21896 · Rated by O*NET analysts, November 2020 11. Act as liaisons between ships' captains and shore personnel to ensure that schedules and budgets are maintained, and that ships are operated safely and efficiently. Core task · Task 21897 · Rated by O*NET analysts, November 2020 12. Conduct environmental, operational, or performance tests on marine machinery and equipment. Core task · Task 21898 · Rated by O*NET analysts, November 2020 13. Inspect marine equipment and machinery to draw up work requests and job specifications. Core task · Task 21899 · Rated by O*NET analysts, November 2020 14. Prepare, or direct the preparation of, product or system layouts and detailed drawings and schematics. Core task · Task 21900 · Rated by O*NET analysts, November 2020 15. Investigate and observe tests on machinery and equipment for compliance with standards. Core task · Task 21901 · Rated by O*NET analysts, November 2020 16. Maintain records of engineering department activities, including expense records and details of equipment maintenance and repairs. Core task · Task 21902 · Rated by O*NET analysts, November 2020 17. Coordinate activities with regulatory bodies to ensure repairs and alterations are at minimum cost and consistent with safety. Core task · Task 21903 · Rated by O*NET analysts, November 2020 18. Design and oversee testing, installation, and repair of marine apparatus and equipment. Core task · Task 21904 · Rated by O*NET analysts, November 2020 19. Prepare technical reports for use by engineering, management, or sales personnel. Core task · Task 21905 · Rated by O*NET analysts, November 2020 20. Procure materials needed to repair marine equipment and machinery. Core task · Task 21906 · Rated by O*NET analysts, November 2020 21. Maintain contact with, and formulate reports for, contractors and clients to ensure completion of work at minimum cost. Core task · Task 21907 · Rated by O*NET analysts, November 2020 22. Maintain and coordinate repair of marine machinery and equipment for installation on vessels. Core task · Task 21908 · Rated by O*NET analysts, November 2020 23. Confer with research personnel to clarify or resolve problems and to develop or modify designs. Core task · Task 21909 · Rated by O*NET analysts, November 2020 24. Conduct analytical, environmental, operational, or performance studies to develop designs for products, such as marine engines, equipment, and structures. Core task · Task 21910 · Rated by O*NET analysts, November 2020 25. Determine conditions under which tests are to be conducted, as well as sequences and phases of test operations. Core task · Task 21911 · Rated by O*NET analysts, November 2020 26. Review work requests and compare them with previous work completed on ships to ensure that costs are economically sound. Core task · Task 21912 · Rated by O*NET analysts, November 2020 27. Analyze data to determine feasibility of product proposals. Core task · Task 21913 · Rated by O*NET analysts, November 2020 28. Schedule machine overhauls and the servicing of electrical, heating, ventilation, refrigeration, water, and sewage systems. Supplemental task · Task 21914 · Rated by O*NET analysts, November 2020 29. Conduct analyses of ships, such as stability, structural, weight, and vibration analyses. Not rated · Task 21915 · Listed by O*NET analysts, November 2020 30. Establish arrangement of boiler room equipment and propulsion machinery, heating and ventilating systems, refrigeration equipment, piping, and other functional equipment. Not rated · Task 21916 · Listed by O*NET analysts, November 2020 ## More in Architecture & Engineering - [Aerospace Engineering and Operations Technologists and Technicians](https://foundation.org.ai/occupations/17-3021.00): 11 tasks - [Aerospace Engineers](https://foundation.org.ai/occupations/17-2011.00): 16 tasks - [Agricultural Engineers](https://foundation.org.ai/occupations/17-2021.00): 14 tasks - [Architects, Except Landscape and Naval](https://foundation.org.ai/occupations/17-1011.00): 24 tasks - [Architectural and Civil Drafters](https://foundation.org.ai/occupations/17-3011.00): 28 tasks - [Automotive Engineering Technicians](https://foundation.org.ai/occupations/17-3027.01): 18 tasks - [Automotive Engineers](https://foundation.org.ai/occupations/17-2141.02): 25 tasks - [Bioengineers and Biomedical Engineers](https://foundation.org.ai/occupations/17-2031.00): 30 tasks - [Calibration Technologists and Technicians](https://foundation.org.ai/occupations/17-3028.00): 15 tasks - [Cartographers and Photogrammetrists](https://foundation.org.ai/occupations/17-1021.00): 14 tasks - 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