Worksheet 80 · Skill 1
Compass conversions
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A magnetic course of 344°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
A bearing on the chart is 113°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
The course laid off on the chart is 225°T. What do you steer by the steering compass?
Give whole degrees (000 to 359). This one must be exact.
Compass course: ________ °C
You are steering 106° by the steering compass. What is the true course?
Give whole degrees (000 to 359). This one must be exact.
True course: ________ °T
A bearing on the chart is 019°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
You are steering 256° by the steering compass. What is the true course?
Give whole degrees (000 to 359). This one must be exact.
True course: ________ °T
A magnetic course of 350°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
A bearing on the chart is 115°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. | Answers | Problem |
|---|---|---|
| 1 | Compass course: 340 °C | No. 80001 (worked solution) |
| 2 | Magnetic bearing: 104 °M | No. 80002 (worked solution) |
| 3 | Compass course: 231 °C | No. 80003 (worked solution) |
| 4 | True course: 102 °T | No. 80004 (worked solution) |
| 5 | Magnetic bearing: 008 °M | No. 80005 (worked solution) |
| 6 | True course: 247 °T | No. 80006 (worked solution) |
| 7 | Compass course: 350 °C | No. 80007 (worked solution) |
| 8 | Magnetic bearing: 109 °M | No. 80008 (worked solution) |