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Worksheet 513 · Skill 1

Compass conversions

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  1. You are steering 119° 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 319°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. The course laid off on the chart is 137°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 275°C. What is the magnetic heading?

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

    Magnetic heading: ________ °M  

  5. You are steering 285° by the steering compass. What is the true course?

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

    True course: ________ °T  

  6. The steering compass reads 172°C. What is the magnetic heading?

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

    Magnetic heading: ________ °M  

  7. You are steering 231° 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 006°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: 135 °T
No. 513001 (worked solution)
2Magnetic bearing: 318 °M
No. 513002 (worked solution)
3Compass course: 148 °C
No. 513003 (worked solution)
4Magnetic heading: 273 °M
No. 513004 (worked solution)
5True course: 280 °T
No. 513005 (worked solution)
6Magnetic heading: 172 °M
No. 513006 (worked solution)
7True course: 235 °T
No. 513007 (worked solution)
8Magnetic bearing: 015 °M
No. 513008 (worked solution)