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Worksheet 231 · Skill 1

Compass conversions

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  1. A magnetic course of 040°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  

  2. A magnetic course of 273°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  

  3. The course laid off on the chart is 142°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 course laid off on the chart is 097°T. What do you steer by the steering compass?

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

    Compass course: ________ °C  

  5. A bearing on the chart is 065°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. A bearing on the chart is 105°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  

  7. The course laid off on the chart is 120°T. 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 259° 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
1Compass course: 034 °C
No. 231001 (worked solution)
2Compass course: 273 °C
No. 231002 (worked solution)
3Compass course: 123 °C
No. 231003 (worked solution)
4Compass course: 086 °C
No. 231004 (worked solution)
5Magnetic bearing: 073 °M
No. 231005 (worked solution)
6Magnetic bearing: 116 °M
No. 231006 (worked solution)
7Compass course: 107 °C
No. 231007 (worked solution)
8True course: 249 °T
No. 231008 (worked solution)