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Worksheet 451 · Skill 1

Compass conversions

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  1. The steering compass reads 138°C. What is the magnetic heading?

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

    Magnetic heading: ________ °M  

  2. The course laid off on the chart is 214°T. What do you steer by the steering compass?

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

    Compass course: ________ °C  

  3. 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  

  4. The steering compass reads 039°C. What is the magnetic heading?

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

    Magnetic heading: ________ °M  

  5. The steering compass reads 155°C. What is the magnetic heading?

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

    Magnetic heading: ________ °M  

  6. You are steering 032° by the steering compass. What is the true course?

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

    True course: ________ °T  

  7. A magnetic course of 087°M is wanted. What do you steer by the steering compass?

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

    Compass course: ________ °C  

  8. A bearing on the chart is 143°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
1Magnetic heading: 132 °M
No. 451001 (worked solution)
2Compass course: 207 °C
No. 451002 (worked solution)
3Compass course: 194 °C
No. 451003 (worked solution)
4Magnetic heading: 039 °M
No. 451004 (worked solution)
5Magnetic heading: 159 °M
No. 451005 (worked solution)
6True course: 032 °T
No. 451006 (worked solution)
7Compass course: 086 °C
No. 451007 (worked solution)
8Magnetic bearing: 144 °M
No. 451008 (worked solution)