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VULCAN POWER SQUADRON
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15 randomly-generated Compass-to-True Bearing conversion problems

Given a boat's True Course and Compass Bearing to an object, calculate the True Bearing of the object. Remember that the compass "errs" by variation and by deviation for the heading of the vessel.

The variation is given. Obtain the deviation by using the Vessel's Devation Table below. Apply the two compass "errors" to obtain true bearing.

Just fill out the blanks and compare them to the answers below, or print the page to work them later. Press Reload (or Refresh) on your browser to generate 15 new questions.



1
2
3
4
5
True Course
358
149
042
106
142
Variation
13E
16W
12E
1E
8W
Compass Bearing
025
009
018
331
349
Deviation
True Bearing


6
7
8
9
10
True Course
091
167
230
345
092
Variation
1E
2E
5E
000
13W
Compass Bearing
283
335
005
345
024
Deviation
True Bearing


11
12
13
14
15
True Course
359
205
028
139
243
Variation
1W
10E
13E
4E
3E
Compass Bearing
113
350
008
355
328
Deviation
True Bearing






Vessel Deviation Table
Magnetic
Heading
DeviationSteer by
Compass
000 5E 355
015 0 015
030 4W 034
045 8W 053
060 11W 071
075 14W 089
090 15W 105
105 15W 120
120 14W 134
135 12W 147
150 9W 159
165 6W 171
Vessel Deviation Table
Magnetic
Heading
DeviationSteer by
Compass
180 3W 183
195 0 195
210 3E 207
225 6E 219
240 9E 231
255 12E 243
270 14E 256
285 15E 270
300 14E 286
315 13E 302
330 11E 319
345 8E 337




Answers:

1
2
3
4
5
True Course
358
149
042
106
142
Variation
13E
16W
12E
1E
8W
Compass Bearing
025
009
018
331
349
Deviation
8E
6W
4W
15W
9W
True Bearing
046
347
026
317
332


6
7
8
9
10
True Course
091
167
230
345
092
Variation
1E
2E
5E
000
13W
Compass Bearing
283
335
005
345
024
Deviation
15W
6W
6E
8E
15W
True Bearing
269
331
016
353
356


11
12
13
14
15
True Course
359
205
028
139
243
Variation
1W
10E
13E
4E
3E
Compass Bearing
113
350
008
355
328
Deviation
5E
000
000
12W
9E
True Bearing
117
000
021
347
340



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