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OICNW-1-2B

Fix by two ranges

Function: Navigation at the operational level

Competence Knowledge, Understanding & Proficiency Task

Plan and conduct a passage and determine position

A1.02 Terrestrial and coastal navigation

Ability to determine the ship’s position by use of:

  1. landmarks
  2. aids to navigation, including lighthouses, beacons and buoys
  3. dead reckoning, taking into account winds, tides, currents and estimated speed

Fix by two ranges

Assessed in: MT-3122 Radar Observer Certification

Condition

On an operational marine radar or a radar simulator that meets applicable national and international performance standards, with land and buoys displayed, and given a chart with a scale of no more than 1: 80,000.

Behavior

Determine two or more ranges measured from identified charted objects or points of land and plot them.

Standard

The position is within ± 0.5 nm of the assessor’s position.