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OICNW-2-2A

Watch relief

Function: Navigation at the operational level

Competence Knowledge, Understanding & Proficiency Task

Maintain a safe navigational watch

A2.2 Thorough knowledge of the Principles to be observed in keeping a navigational watch

Watch relief

Assessed in: MT-4371 Sea Term IV Deck

Condition

On a ship underway or a full mission ship simulator during an exercise at sea.

Behavior

Properly relieve the watch in accordance with STCW Code Section A-VIII/2, Part 3-1, Paragraphs 21 and 22.

Standard

  1. The standing orders and night orders were read.
  2. The vessel’s position, course and speed are read from the GPS receiver and compared to the DR position and track.
  3. The position of the next charted waypoint is compared to the GPS waypoint and the route print out.
  4. The identity of critical aids to navigation in sight is verified.
  5. Tides and currents are determined as necessary.
  6. Visibility and weather are determined.
  7. The radar or ARPA is checked and is properly tuned.
  8. Any targets displayed on the radar or ARPA are checked.
  9. Heading by magnetic and gyrocompass is checked.
  10. The navigational hazards likely to be encountered during the watch are determined.
  11. The possible effects of list, trim, water density and squat on under keel clearance are determined.
  12. Courses, traffic, weather and any special instructions were related by the officer being relieved.
  13. The relieving officer told the officer being relieved he or she was relieved.