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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
067
086
041
060
229
Variation
8W
11E
11E
000
11W
Compass Bearing
003
025
358
135
049
Deviation
True Bearing


6
7
8
9
10
True Course
011
208
034
349
262
Variation
19W
2W
4E
4E
22E
Compass Bearing
028
341
342
345
352
Deviation
True Bearing


11
12
13
14
15
True Course
288
096
289
195
087
Variation
18E
9W
11W
000
3W
Compass Bearing
353
032
220
057
030
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
067
086
041
060
229
Variation
8W
11E
11E
000
11W
Compass Bearing
003
025
358
135
049
Deviation
14W
14W
4W
11W
9E
True Bearing
341
022
005
124
047


6
7
8
9
10
True Course
011
208
034
349
262
Variation
19W
2W
4E
4E
22E
Compass Bearing
028
341
342
345
352
Deviation
4W
3E
4W
8E
9E
True Bearing
005
342
342
357
023


11
12
13
14
15
True Course
288
096
289
195
087
Variation
18E
9W
11W
000
3W
Compass Bearing
353
032
220
057
030
Deviation
14E
15W
14E
000
15W
True Bearing
025
008
223
057
012



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