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Worksheet 172 · Skill 1

Compass conversions

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  1. The course laid off on the chart is 199°T. What do you steer by the steering compass?

    Give whole degrees (000 to 359). This one must be exact.

    Compass course: ________ °C  

  2. The course laid off on the chart is 339°T. What do you steer by the steering compass?

    Give whole degrees (000 to 359). This one must be exact.

    Compass course: ________ °C  

  3. A bearing on the chart is 021°T. What is it magnetic (for a hand-bearing compass, which is taken to have no deviation)?

    Give whole degrees (000 to 359). This one must be exact.

    Magnetic bearing: ________ °M  

  4. You are steering 115° by the steering compass. What is the true course?

    Give whole degrees (000 to 359). This one must be exact.

    True course: ________ °T  

  5. A bearing on the chart is 173°T. What is it magnetic (for a hand-bearing compass, which is taken to have no deviation)?

    Give whole degrees (000 to 359). This one must be exact.

    Magnetic bearing: ________ °M  

  6. The steering compass reads 118°C. What is the magnetic heading?

    Give whole degrees (000 to 359). This one must be exact.

    Magnetic heading: ________ °M  

  7. You are steering 000° by the steering compass. What is the true course?

    Give whole degrees (000 to 359). This one must be exact.

    True course: ________ °T  

  8. A bearing on the chart is 109°T. What is it magnetic (for a hand-bearing compass, which is taken to have no deviation)?

    Give whole degrees (000 to 359). This one must be exact.

    Magnetic bearing: ________ °M  

Answer key

No.AnswersProblem
1Compass course: 187 °C
No. 172001 (worked solution)
2Compass course: 341 °C
No. 172002 (worked solution)
3Magnetic bearing: 030 °M
No. 172003 (worked solution)
4True course: 110 °T
No. 172004 (worked solution)
5Magnetic bearing: 183 °M
No. 172005 (worked solution)
6Magnetic heading: 118 °M
No. 172006 (worked solution)
7True course: 346 °T
No. 172007 (worked solution)
8Magnetic bearing: 108 °M
No. 172008 (worked solution)