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Worksheet 21 · Skill 1

Compass conversions

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  1. You are steering 161° by the steering compass. What is the true course?

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

    True course: ________ °T  

  2. A bearing on the chart is 204°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  

  3. A magnetic course of 188°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  

  4. A magnetic course of 100°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  

  5. The course laid off on the chart is 340°T. What do you steer by the steering compass?

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

    Compass course: ________ °C  

  6. A magnetic course of 355°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  

  7. A bearing on the chart is 228°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  

  8. A bearing on the chart is 272°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
1True course: 165 °T
No. 21001 (worked solution)
2Magnetic bearing: 196 °M
No. 21002 (worked solution)
3Compass course: 188 °C
No. 21003 (worked solution)
4Compass course: 098 °C
No. 21004 (worked solution)
5Compass course: 356 °C
No. 21005 (worked solution)
6Compass course: 355 °C
No. 21006 (worked solution)
7Magnetic bearing: 216 °M
No. 21007 (worked solution)
8Magnetic bearing: 260 °M
No. 21008 (worked solution)