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Worksheet 521 · Skill 1

Compass conversions

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  1. A bearing on the chart is 164°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  

  2. The course laid off on the chart is 279°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 120°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 042° by the steering compass. What is the true course?

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

    True course: ________ °T  

  5. The steering compass reads 302°C. What is the magnetic heading?

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

    Magnetic heading: ________ °M  

  6. You are steering 105° 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 112°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. You are steering 315° by the steering compass. What is the true course?

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

    True course: ________ °T  

Answer key

No.AnswersProblem
1Magnetic bearing: 166 °M
No. 521001 (worked solution)
2Compass course: 291 °C
No. 521002 (worked solution)
3Magnetic bearing: 114 °M
No. 521003 (worked solution)
4True course: 040 °T
No. 521004 (worked solution)
5Magnetic heading: 302 °M
No. 521005 (worked solution)
6True course: 115 °T
No. 521006 (worked solution)
7Compass course: 118 °C
No. 521007 (worked solution)
8True course: 320 °T
No. 521008 (worked solution)