Worksheet 538 · Skill 1

Compass conversions

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You are steering 116° by the steering compass. What is the true course?
Give whole degrees (000 to 359). This one must be exact.

True course: ________ °T
The steering compass reads 302°C. What is the magnetic heading?
Give whole degrees (000 to 359). This one must be exact.

Magnetic heading: ________ °M
A bearing on the chart is 359°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 017° by the steering compass. What is the true course?
Give whole degrees (000 to 359). This one must be exact.

True course: ________ °T
You are steering 318° by the steering compass. What is the true course?
Give whole degrees (000 to 359). This one must be exact.

True course: ________ °T
The course laid off on the chart is 150°T. 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 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
The course laid off on the chart is 232°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.	Answers	Problem
1	True course: 119 °T	No. 538001 (worked solution)
2	Magnetic heading: 308 °M	No. 538002 (worked solution)
3	Magnetic bearing: 004 °M	No. 538003 (worked solution)
4	True course: 029 °T	No. 538004 (worked solution)
5	True course: 326 °T	No. 538005 (worked solution)
6	Compass course: 145 °C	No. 538006 (worked solution)
7	Magnetic bearing: 224 °M	No. 538007 (worked solution)
8	Compass course: 221 °C	No. 538008 (worked solution)