MMA Assessment OICNW-1-2A

Fix by two bearings

Condition

On a ship underway, or a integrated navigation simulator, with land and aids to navigation in sight, using a standard bearing circle, alidade, or other device for taking bearings, and given a chart with a scale of no more than 1: 80,000.

Performance requirement

Behavior Standard
The student will: During assessment, the student shall, at a minimum:

Determine the bearings of at least two charted objects and plot them.
  1. The position is within ± 0.2 nm of the assessor’s position.
  2. Crossing angles of bearings should be not less than 30° and not more than 160° between bearings.
  3. The bearings of objects abeam or close to the beam are observed first.
  4. The chart in use is the largest scale suitable for the waters being transited.

Location

Assessed in MT‑2225 Integrated Navigation.

References

STCW Knowledge, Understanding and Proficiency

  1. OICNW-A1.02

NVIC Tasks

  1. NVIC 12-14 Task 1.2.A Position fix by two bearings