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Worksheet 183 · Skill 1

Compass conversions

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  1. A bearing on the chart is 170°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 230°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 282°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. The steering compass reads 358°C. What is the magnetic heading?

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

    Magnetic heading: ________ °M  

  5. A magnetic course of 304°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  

  6. You are steering 297° 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 339°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. The course laid off on the chart is 063°T. What do you steer by the steering compass?

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

    Compass course: ________ °C  

Answer key

No.AnswersProblem
1Magnetic bearing: 179 °M
No. 183001 (worked solution)
2Compass course: 226 °C
No. 183002 (worked solution)
3Magnetic bearing: 289 °M
No. 183003 (worked solution)
4Magnetic heading: 355 °M
No. 183004 (worked solution)
5Compass course: 309 °C
No. 183005 (worked solution)
6True course: 304 °T
No. 183006 (worked solution)
7Compass course: 336 °C
No. 183007 (worked solution)
8Compass course: 053 °C
No. 183008 (worked solution)