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B You desire to make good a true course of 236. The variation is 8E, magnetic compass deviation is 1E, and gyrocompass error is 3W. A south-southeasterly wind produces a 1 leeway. What is the course to steer per standard magnetic compass (psc) to make the true course good? 246psc 226psc 244psc 228psc Compass Error, Leeway
D Your vessel is steering 195 per standard magnetic compass. Variation for the area is 13W, and the deviation is 4E. The wind is from the west-southwest, producing a 2 leeway. Which true course are you making good? 178T 180T 182T 184T Compass Error, Leeway
C You are steering a magnetic compass course of 075. The variation for the area is 10W, and the compass deviation is 5E. What is the true course you are steering? 060T 090T 070T 080T Compass Error, Leeway
A The true course between two points is 057. Your gyrocompass has an error of 3 east and you make an allowance of 1 leeway for a north-northwest wind. Which gyro course should be steered to make the true course good? 053pgc 060pgc 059pgc 056pgc Compass Error, Leeway
C You want to make good a true course of 137. A north-northeast wind produces a 3 leeway. The variation is 11 west, deviation is 5 east, and gyrocompass error is 2 east. What course must you steer per gyrocompass to make the true course good? 138pgc 136pgc 132pgc 134pgc Compass Error, Leeway
A You desire to make good a true course of 046. The variation is 6E, magnetic compass deviation is 12W, and the gyrocompass error is 3W. A northerly wind produces a 5 leeway. What is the course to steer per standard magnetic compass to make good the true course? 047psc 057psc 049psc 052psc Compass Error, Leeway
D Your vessel is steering course 299psc, variation for the area is 7W, and deviation is 4W. The wind is from the southwest, producing a 3 leeway. What true course are you making good? 296T 299T 313T 291T Compass Error, Leeway
D Your vessel is steering course 027 per standard magnetic compass (psc), variation for the area is 19W, and deviation is 2E. The wind is from the north-northwest, producing a 5 leeway. What true course are you making good? 044T 005T 049T 015T Compass Error, Leeway
A Your vessel is steering course 149psc, variation for the area is 13E, and deviation is 4E. The wind is from the northeast, producing a 4 leeway. What true course are you making good? 170T 128T 136T 162T Compass Error, Leeway
D Your vessel is steering course 197psc, variation for the area is 7E, and deviation is 4W. The wind is from the west, producing a 2 leeway. Which true course are you making good? 196T 192T 202T 198T Compass Error, Leeway
C You are steering 318psc. A northeasterly wind causes 3 of leeway. The variation is 14E and the deviation table is extracted below. What will be the true course made good?
{{{
DEVIATION TABLE
Magnetic
Heading    Deviation
300          2E
315          0
330          2W}}}
327T
301T
329T
303T Compass Error, Leeway
C Your vessel is steering course 216 per standard magnetic compass, variation for the area is 9W, and deviation is 2E. The wind is from the east, producing a 5 leeway. What true course are you making good? 227T 223T 214T 204T Compass Error, Leeway
A Your vessel is steering a course of 337psc. Variation for the area is 13W, and deviation is 4E. The wind is from the south, producing a 3 leeway. Which true course are you making good? 331T 325T 349T 328T Compass Error, Leeway
C Your vessel is steering course 166psc, variation for the area is 8W, and deviation is 3W. The wind is from the west-southwest, producing a 2 leeway. What true course are you making good? 175T 157T 153T 179T Compass Error, Leeway
A Your vessel is steering course 073psc, variation for the area is 15E, and deviation is 4E. The wind is from the southeast, producing a 4 leeway. Which true course are you making good? 088T 096T 050T 058T Compass Error, Leeway
A Your vessel is steering course 111psc, variation for the area is 5E, and deviation is 3W. The wind is from the northwest, producing a 1 leeway. What true course are you making good? 114T 108T 112T 110T Compass Error, Leeway
C Your vessel is steering course 284psc, variation for the area is 6W, and deviation is 3E. The wind is from the north-northeast, producing a 3 leeway. What true course are you making good? 290T 275T 278T 284T Compass Error, Leeway
D Your vessel is steering course 243psc. Variation for the area is 5E, and deviation is 2W. The wind is from the south-southeast, producing a 2 leeway. What true course are you making good? 242T 244T 246T 248T Compass Error, Leeway
A Your vessel is steering course 352psc, variation for the area is 11E, and deviation is 9W. The wind is from the northeast, producing a 1 leeway. What true course are you making good? 353T 351T 355T 349T Compass Error, Leeway
D You desire to make good a true course of 129. The variation is 7E, magnetic compass deviation is 4E, and gyrocompass error is 2W. An easterly wind produces a 4 leeway. What is the course to steer per standard magnetic compass to make the true course good? 126psc 116psc 122psc 114psc Compass Error, Leeway
B You desire to make good a true course of 203. The variation is 19E, magnetic compass deviation is 2W, and gyrocompass error is 1E. A westerly wind produces a 3 leeway. What is the course to steer per standard magnetic compass to make the true course good? 223psc 189psc 183psc 210psc Compass Error, Leeway
A You wish to make good a course of 258T, allowing 4 leeway for northerly winds. The variation is 21W. What should you steer per standard magnetic compass to make good 258T?
{{{
DEVIATION TABLE
Magnetic
Heading   Deviation
285        5E
270        3E
255        1E
240        1W}}}
278psc

288psc
242psc 271psc Compass Error, Leeway
C You desire to make good a true course of 329. The variation is 13 W, magnetic compass deviation is 4E, and gyrocompass error is 2W. A southerly wind produces a 1 leeway. What is the course to steer per standard magnetic compass to make the true course good? 321psc 319psc 337psc 339psc Compass Error, Leeway
D You desire to make good a true course of 157. The variation is 15E, magnetic compass deviation is 9W, and gyrocompass error is 3E. A southwesterly wind produces a 2 leeway. What is the course to steer per standard magnetic compass to make the true course good? 145psc 150psc 147psc 153psc Compass Error, Leeway
D You desire to make good a true course of 067. The variation is 11W, magnetic compass deviation is 3E, and gyrocompass error is 1W. A northwesterly wind produces a 5 leeway. What is the course to steer per standard magnetic compass to make the true course good? 074psc 064psc 054psc 070psc Compass Error, Leeway
A You desire to make good a true course of 038. The variation is 5E, magnetic compass deviation is 4W, and gyrocompass error is 4W. A southeasterly wind produces a 4 leeway. What is the course to steer per standard magnetic compass to make the true course good? 041psc 033psc 047psc 043psc Compass Error, Leeway
C You desire to make good a true course of 279. The variation is 8W, magnetic compass deviation is 3E, and gyrocompass error is 1E. A north-northwesterly wind produces 3 leeway. What is the course to steer per standard magnetic compass (psc) to make the true course good? 290psc 281psc 287psc 284psc Compass Error, Leeway
C You desire to make good a true course of 347. The variation is 11E, magnetic compass deviation is 7W, and gyrocompass error is 4W. A north by east wind produces a 4 leeway. What is the course to steer per standard magnetic compass to make the true course good? 351psc 339psc 347psc 343psc Compass Error, Leeway
A You desire to make good a true course of 007. The variation is 5E, magnetic compass deviation is 3W, and gyrocompass error is 2E. A southwest by west wind produces a 2 leeway. What is the course to steer per standard magnetic compass to make the true course good? 003psc 005psc 007psc 009psc Compass Error, Leeway
A You desire to make good a true course of 132. The variation is 10W, magnetic compass deviation is 5E, and gyrocompass error is 5W. A northeast by east wind produces a 5 leeway. What is the course to steer per standard magnetic compass to make the true course good? 132psc 142psc 137psc 135psc Compass Error, Leeway
C You desire to make good a true course of 223. The variation is 2E, magnetic compass deviation is 2E, and gyrocompass error is 1W. An east-southeast wind produces 3 leeway. What is the course to steer per standard magnetic compass to make the true course good? 213psc 220psc 216psc 223psc Compass Error, Leeway
A The true course from point A to point B is 317. A SSW wind causes a 4 leeway, variation is 6W and deviation is 1E. What is the magnetic compass course to steer to make good the true course? 318psc 326psc 313psc 308psc Compass Error, Leeway
D You desire to make good a true course of 174. The variation is 17W, magnetic compass deviation is 4W, and gyrocompass error is 4E. A west-southwest wind produces a 4 leeway. What is the course to steer per standard magnetic compass to make the true course good? 197psc 203psc 195psc 199psc Compass Error, Leeway
C You are steering 154 per gyrocompass. The wind is northeast by east, causing 4 leeway. The gyro error is 3 east, variation is 11 west, and deviation is 7E. What is the true course made good? 158T 164T 161T 151T Compass Error, Leeway
D While enroute from Montevideo to Walvis Bay a vessel's course is 116psc. The variation for the locality is 25W and the deviation is 6W. What is the true course made good if a northerly wind produces 1 leeway? 084T 085T 148T 086T Compass Error, Leeway
B While enroute from Cape Town to Rio a vessel's course is 281pgc. The variation for the locality is 24W. The deviation is 4E. The gyro error is 2W. What is the true course made good? 261T 279T 301T 283T Compass Error, Leeway
D The true course between two points is 119. Your gyrocompass has an error of 3E. You allow of 4 leeway for a south-southwest wind. What gyro course should be steered to make the true course good? 118pgc 126pgc 112pgc 120pgc Compass Error, Leeway
B The true course between two points is 041. Your gyrocompass has an error of 1W. You make an allowance of 2 leeway for a east-southeast wind. What gyro course should be steered to make the true course good? 040pgc 044pgc 042pgc 043pgc Compass Error, Leeway
C The true course between two points is 220. Your gyrocompass has an error of 1E. You make an allowance of 1 leeway for a north-northwest wind. What gyro course should be steered to make the true course good? 223pgc 221pgc 220pgc 222pgc Compass Error, Leeway
A The true course between two points is 312. Your gyrocompass has an error of 3W. You make an allowance of 4 leeway for a west by south wind. What gyro course should be steered to make the true course good? 311pgc 315pgc 305pgc 318pgc Compass Error, Leeway
D The true course between two points is 078. Your gyrocompass has an error of 2E. You make an allowance of 3 leeway for a north wind. What gyro course should be steered to make the true course good? 079pgc 075pgc 077pgc 073pgc Compass Error, Leeway
A The true course between two points is 194. Your gyrocompass has an error of 2W and you make an allowance of 1 leeway for a southwest wind. What gyro course should you steer to make the true course good? 197pgc 199pgc 195pgc 193pgc Compass Error, Leeway
A You are steering 154pgc. The wind is southwest causing 4 leeway. The gyro error is 3E, variation is 11W and deviation is 7E. What is the true course made good? 153T 161T 158T 164T Compass Error, Leeway
D The true course between two points is 337. Your gyrocompass has an error of 3E and you make an allowance of 5 leeway for a west wind. Which gyro course should be steered to make the true course good? 335pgc 345pgc 339pgc 329pgc Compass Error, Leeway
A The true course between two points is 023T. Your gyrocompass has an error of 1W and you make an allowance of 4 leeway for an east wind. What gyro course should be steered to make the true course good? 028pgc 020pgc 026pgc 021pgc Compass Error, Leeway
A The true course between two points is 106. Your gyrocompass has an error of 2E and you make an allowance of 2 leeway for a south wind. What gyro course should be steered to make the true course good? 106pgc 102pgc 108pgc 104pgc Compass Error, Leeway
B While enroute from Montevideo to Walvis Bay a vessel's course is 116psc. The variation for the locality is 25W and the deviation is 6W. What is the true course made good if a southerly wind produces 1 leeway? 148T 084T 085T 086T Compass Error, Leeway
A You desire to make good 152T. The magnetic compass deviation is 4E, the variation is 5E, and the gyro error is 3E. A southwesterly wind produces a 4 leeway. Which course would you steer per standard compass to make good the true course? 147psc 141psc 143psc 137psc Compass Error, Leeway
C You are steering 125pgc. The wind is southwest by south causing a 3 leeway. The variation is 6E, the deviation is 2W, and the gyro error is 1W. What is the true course made good? 127T 129T 121T 123T Compass Error, Leeway
B Enroute from Rio to Montevideo, the true course is 215; the gyro error is 2 west. A north wind causes 3 leeway. What course would you steer per gyrocompass to make good the true course? 214pgc 220pgc 216pgc 210pgc Compass Error, Leeway
D While enroute from Sydney to the Panama Canal a vessel's true course is 071. Variation is 14E. Deviation is 4W. A northerly breeze causes 2 leeway. What course would you steer psc in order to make good the true course? 079psc 063psc 061psc 059psc Compass Error, Leeway
A You are underway and intend to make good a course of 040T. You experience a current with a set and drift of 190T at 1.4 knots, and a northwest wind produces a leeway of 3. You adjust your course to compensate for the current and leeway, while maintaining an engine speed of 10 knots. What will be your speed made good over your intended course of 040T? 8.8 knots 7.8 knots 9.8 knots 11.0 knots Course Made Good
C You wish to make good a course of 035T while turning for an engine speed of 12 knots. The set is 340T, and the drift is 2 knots. What course should you steer? 054T 027T 044T 037T Course Made Good
D You wish to make good a course of 230T while turning for an engine speed of 12.5 knots. The set is 180T, and the drift is 1.7 knots. What course should you steer? 222T 231T 244T 236T Course Made Good
B You wish to make good a course of 300T while turning for an engine speed of 11 knots. The set is 350T, and the drift is 2.1 knots. Which course should you steer? 308T 292T 278T 288T Course Made Good
A You are underway on course 000T at 9.5 knots. The current is 082T at 1.1 knots. What is the course being made good? 007T 021T 353T 009T Course Made Good
A You are underway on course 315T at 14 knots. The current is 135T at 1.9 knots. What is the course being made good? 315T 322T 317T 130T Course Made Good
C You are underway on course 215T at 12 knots. The current is 000T at 2.3 knots. What is the course made good? 232T 209T 222T 217T Course Made Good
C You are underway on course 160T at 10 knots. The current is 210T at 0.9 knots. What is the course made good? 156T 160T 164T 169T Course Made Good
A You wish to make good a course of 350T while turning for an engine speed of 10 knots. The set is 070T, and the drift is 1.5 knots. What course should you steer? 341T 359T 332T 345T Course Made Good
A You are underway and intend to make good a course of 350T. You experience a current with a set and drift of 070T at 1.5 knots, and a westerly wind produces a leeway of 4. You adjust your course to compensate for the current and leeway, while maintaining an engine speed of 10 knots. What will be your speed made good over your intended course of 350T? 10. 2knots 9.8 knots 10.6 knots 9.4 knots Course Made Good
D You wish to make good a course of 035T while turning for an engine speed of 12 knots. The set is 340T, and the drift is 2 knots. What speed will you make good along the track line? 12.2 knots 12.7 knots 13.3 knots 13.0 knots Course Made Good
D You are underway and intend to make good a course of 170T. You experience a current with a set and drift of 050T at 2.8 knots, and a easterly wind produces a leeway of 3. You adjust your course to compensate for the current and leeway, while maintaining an engine speed of 18.5 knots. What will be your speed made good over your intended course of 170T? 18.5 knots 17.6 knots 18.1 knots 17.2 knots Course Made Good
D You are underway and intend to make good a course of 088T. You experience a current with a set and drift of 300T at 2.4 knots, and a southerly wind produces a leeway of 3. You adjust your course to compensate for the current and leeway, while maintaining an engine speed of 16 knots. What will be your speed made good over your intended course of 088T? 14.9 knots 14.4 knots 13.4 knots 13.9 knots Course Made Good
A You are underway on course 172T at 18.5 knots. The current is 078T at 2.8 knots. What is the speed being made good? 18.5 knots 20.0 knots 19.5 knots 19.0 knots Course Made Good
A You are underway on course 000T at 9.5 knots. The current is 082T at 1.1 knots. What is the speed being made good? 9.8 knots 9.2 knots 10.1 knots 9.5 knots Course Made Good
D You are underway on course 315T at 14 knots. The current is 135T at 1.9 knots. What is the speed being made good? 15.9 knots 13.5 knots 14.0 knots 12.1 knots Course Made Good
A You are underway on course 215T at 12 knots. The current is 000T at 2.3 knots. What is the speed being made good? 10.2 knots 8.5 knots 10.9 knots 11.2 knots Course Made Good
A You are underway on course 160T at 10 knots. The current is 210T at 0.9 knots. What is the speed being made good? 10.7 knots 12.3 knots 11.6 knots 11.0 knots Course Made Good
B You wish to make good a course of 053T while turning for an engine speed of 16 knots. The set is 345T, and the drift is 2.4 knots. What speed will you make good along the track line? 14.1 knots 16.8 knots 16.1 knots 15.2 knots Course Made Good
A You are heading 328pgc to make good a course of 332T, allowing 3 leeway for westerly winds and 1E gyro error. The variation is 17E. What should your heading be by standard magnetic compass to make good 332T.
{{{
DEVIATION TABLE
Magnetic
Heading  Deviation
345       1E
330       1W
315       3W}}}
315psc
343psc
318psc
345psc Course to Steer 
D You are steering 142pgc to make good your desired course. The gyro error is 1E . The variation is 8W. What should you steer by standard magnetic compass to make good the desired course?
{{{
DEVIATION TABLE
Magnetic
Heading  Deviation
120       4E
135       2E
150       0}}}
133psc
146psc
148psc
151psc Course to Steer 
C You are underway on course 017T at a speed of 14.2 knots. You sight a buoy bearing 025T at a radar range of 3.7 miles at 1947. If you change course at 1953, what is the course to steer to leave the buoy abeam to starboard at 0.1 mile? 021T 030T 027T 024T Course to Steer 
D The track line on the chart is 274T. Variation is 4E, and deviation is 2E. The gyro error is 1.5E. What course would be steered by gyrocompass to make good the desired course? 280.5pgc 278.0pgc 275.5pgc 272.5pgc Course to Steer 
C You are underway on course 059T at a speed of 13.8 knots. You sight a light bearing 064T at a radar range of 5.1 miles at 1839. If you change course at 1845, what is the course to steer to leave the light abeam to starboard at 1.0 mile? 053T 047T 050T 058T Course to Steer 
D You are underway on course 106T at a speed of 15.3 knots. You sight a buoy bearing 109T at a radar range of 3.6 miles at 1725. If you change course at 1728, what is the course to steer to leave the buoy abeam to port at 0.5 mile? 100T 117T 125T 120T Course to Steer 
D You are underway on course 128T at a speed of 17.6 knots. You sight a daymark bearing 126T at a radar range of 4.3 miles at 1649. If you change course at 1654, what is the course to steer to leave the daymark abeam to starboard at 0.5 mile? 116T 136T 119T 113T Course to Steer 
A You are underway on course 137T at a speed of 16.2 knots. You sight a rock bearing 134T at a radar range of 4.6 miles at 1508. If you change course at 1514, what is the course to steer to leave the rock abeam to port at 1.5 miles? 162T 158T 151T 154T Course to Steer 
D You are underway on course 163T at a speed of 15.8 knots. You sight a buoy bearing 161T at a radar range of 5.5 miles at 1319. If you change course at 1325, what is the course to steer to leave the buoy abeam to starboard at 1.0 mile? 175T 148T 151T 145T Course to Steer 
C You are underway on course 204T at a speed of 17.3 knots. You sight a light bearing 205T at a radar range of 4.7 miles at 1222. If you change course at 1228, what is the course to steer to leave the light abeam to port at 1.5 miles? 223T 240T 236T 229T Course to Steer 
C At 1423 you are on course 072 T at 12.2 knots, when you sight a rock awash bearing 070T at a range of 3.6 miles. If you change course at 1427, what course would you steer to leave the rock 1.0 mile abeam to port? 049 086 091 054 Course to Steer 
A You are steaming on course 126T at 14.8 knots. At 1022 you sight a buoy bearing 128T, at a range of 4.8 miles. If you change course at 1026, what true course will you steer to leave the buoy 0.5 mile abeam to port? 136 122 119 133 Course to Steer 
D At 2221 your course is 222pgc at a speed of 11.2 knots, when radar detects a buoy bearing 355 relative, at a range of 5.8 miles. The gyro error is 2E. If you change course at 2226, what course should you steer to leave the buoy 1.0 mile abeam to port? 231pgc 206pgc 210pgc 228pgc Course to Steer 
C You are underway on course 241T at a speed of 18.2 knots. You sight a daymark bearing 241T at a radar range of 3.9 miles at 1006. If you change course at 1009, what is the course to steer to leave the daymark abeam to starboard at 1.0 mile? 257T 218T 222T 260T Course to Steer 
D You are underway on course 254T at a speed of 16.5 knots. You sight a rock bearing 255T at a radar range of 6.1 miles at 0916. If you change course at 0922, what is the course to steer to leave the rock abeam to starboard at 1.5 miles? 233T 239T 268T 236T Course to Steer 
B You are underway on course 340T at a speed of 14.8 knots. You sight a buoy bearing 342T at a radar range of 4.8 miles at 1422. If you change course at 1428, what is the true course to steer to leave the buoy abeam to port at 1.0 mile? 357T 001T 354T 327T Course to Steer 
C You are steering 318psc. A northeasterly wind causes 3 of leeway. The variation is 14E and the deviation table is extracted below. What will be the true course made good?
{{{
DEVIATION TABLE
Magnetic
Heading    Deviation
300          2E
315          0
330          2W}}}
327T
301T
329T
303T Compass Error, Leeway
A You wish to make good a course of 258T, allowing 4 leeway for northerly winds. The variation is 21W. What should you steer per standard magnetic compass to make good 258T?
{{{
(5.8.3.1-22)
Magnetic
Heading  Deviation
285       5E
270       3E
255       1E
240       1W}}}
278psc 288psc 242psc 271psc Compass Error, Leeway
D You are steering 142pgc to make good your desired course. The gyro error is 1E . The variation is 8W. What should you steer by standard magnetic compass to make good the desired course?
{{{
(5.8.3.2-01)
Magnetic
Heading  Deviation
120       4E
135       2E
150       0}}}
133psc 146psc 148psc 151psc Compass Error, Leeway
B You swung ship and compared the magnetic compass against the gyrocompass to find deviation. Gyro error is 2W. The variation is 8W. Find the deviation on a gyro heading of 039.
{{{
HEADING
PSC-     PGC
030.5-  024
061.5-  054
092.0-  084
122.5-  114
152.0-  144
181.0-  174
210.0-  204
239.5-  234
269.0-  264
298.0-  294
327.5-  324
358.5-  354}}}
0.5W 1.0W 0.8E 0.0 Deviation of Standard Magnetic Compass
C You swung ship and compared the magnetic compass against the gyrocompass to find deviation. Gyro error is 2E. The variation is 8W. Find the deviation on a magnetic compass heading of 057.
{{{
HEADING
PSC    PGC
030.5-020
061.5-050
092.0-080
122.5-110
152.0-140
181.0-170
210.0-200
239.5-230
269.0-260
298.0-290
327.5-320
358.5-350}}}
1.5E 0.5W 1.5W 1.0E Deviation of Standard Magnetic Compass
A You swung ship and compared the magnetic compass against the gyrocompass to find deviation. Gyro error is 2E. The variation is 8W. Find the deviation on a magnetic compass heading of 143.
{{{
HEADING
PSC-   PGC
030.5-020
061.5-050
092.0-080
122.5-110
152.0-140
181.0-170
210.0-200
239.5-230
269.0-260
298.0-290
327.5-320
358.5-350}}}
2.0W 0.5W 0.0 1.5W Deviation of Standard Magnetic Compass
C You swung ship and compared the magnetic compass against the gyrocompass to find deviation. Gyro error is 2E. The variation is 8W. Find the deviation on a magnetic compass heading of 104.
{{{
HEADING
PSC-   PGC
030.5-020
061.5-050
092.0-080
122.5-110
152.0-140
181.0-170
210.0-200
239.5-230
269.0-260
298.0-290
327.5-320
358.5-350}}}
1.8E 2.6E 2.2W 2.7W Deviation of Standard Magnetic Compass
A You swung ship and compared the magnetic compass against the gyrocompass to find deviation. Gyro error is 2E. The variation is 8W. Find the deviation on a magnetic compass heading of 234.
{{{
HEADING
PSC-   PGC
030.5-020
061.5-050
092.0-080
122.5-110
152.0-140
181.0-170
210.0-200
239.5-230
269.0-260
298.0-290
327.5-320
358.5-350}}}
0.5E 2.5E 2.5W 1.0W Deviation of Standard Magnetic Compass
C You swung ship and compared the magnetic compass against the gyrocompass to find deviation. Gyro error is 2W. The variation is 8W. Find the deviation on a magnetic compass heading of 210.
{{{
HEADING
PSC-   PGC
030.5-024
061.5-054
092.0-084
122.5-114
152.0-144
181.0-174
210.0-204
239.5-234
269.0-264
298.0-294
327.5-324
358.5-354}}}
0.5E 0.5W 0.0 1.0E Deviation of Standard Magnetic Compass
A You swung ship and compared the magnetic compass against the gyrocompass to find deviation. Gyro error is 2W. The variation is 8W. Find the deviation on a true heading of 157.
{{{
HEADING
PSC-   PGC
030.5-024
061.5-054
092.0-084
122.5-114
152.0-144
181.0-174
210.0-204
239.5-234
269.0-264
298.0-294
327.5-324
358.5-354}}}
1.5W 0.0 1.0W 2.0W Deviation of Standard Magnetic Compass
D You swung ship and compared the magnetic compass against the gyrocompass to find deviation. Gyro error is 2W. The variation is 8W. Find the deviation on a true heading of 319.
{{{  
HEADING
PSC-   PGC
030.5-024
061.5-054
092.0-084
122.5-114
152.0-144
181.0-174
210.0-204
239.5-234
269.0-264
298.0-294
327.5-324
358.5-354}}}
0.5E 1.0W 2.5W 2.5E Deviation of Standard Magnetic Compass
A You swung ship and compared the magnetic compass against the gyrocompass to find deviation. Gyro error is 2W. The variation is 8W. Find the deviation on a magnetic compass heading of 004.
{{{
HEADING
PSC-   PGC
030.5-024
061.5-054
092.0-084
122.5-114
152.0-144
181.0-174
239.5-234
269.0-264
210.0-204
298.0-294
327.5-324
358.5-354}}}
1.0E 0.0 1.5W 0.5W Deviation of Standard Magnetic Compass
D You swung ship and compared the magnetic compass against the gyrocompass to find deviation. Gyro error is 2E. The variation is 8W. Find the deviation on a gyro heading of 196.
{{{
HEADING
PSC-   PGC
030.5-020
092.0-080
106.5-050
122.5-110
152.0-140
181.0-170
210.0-200
239.5-230
269.0-260
298.0-290
327.5-320
358.5-350}}}
1.0W 2.0W 2.0E 0.0 Deviation of Standard Magnetic Compass
B You swung ship and compared the magnetic compass against the gyrocompass to find deviation. Gyro error is 2E. The variation is 8W. Find the deviation on a true heading of 258.
{{{
HEADING
PSC-   PGC
030.5-020
061.5-050
092.0-080
122.5-110
152.0-140
181.0-170
210.0-200
239.5-230
269.0-260
298.0-290
327.5-320
358.5-350}}}
0.5E 1.0E 0.5W 0.0 Deviation of Standard Magnetic Compass
A You swung ship and compared the magnetic compass against the gyrocompass to find deviation. Gyro error is 2W. The variation is 8W. Find the deviation on a gyro heading of 058.
{{{
HEADING
PSC-   PGC
030.5-024
061.5-054
092.0-084
122.5-114
152.0-144
181.0-174
210.0-204
239.5-234
269.0-264
298.0-294
327.5-324
358.5-354}}}
1.5W 1.0E 1.0W 0.5W Deviation of Standard Magnetic Compass
A You swung ship and compared the magnetic compass against the gyrocompass to find deviation. Gyro error is 2W. The variation is 8W. Find the deviation on a magnetic compass heading of 166.
{{{
HEADING
PSC-   PGC
030.5-024
061.5-054
092.0-084
122.5-114
152.0-144
181.0-174
239.5-234
269.0-264
210.0-204
298.0-294
327.5-324
358.5-354}}}
1.5W 0.5W 2.0W 1.0W Deviation of Standard Magnetic Compass
B You swung ship and compared the magnetic compass against the gyrocompass to find deviation. Gyro error is 2W. The variation is 8W. Find the deviation on a magnetic compass heading of 022.
{{{
HEADING
PSC-   PGC
030.5-024
061.5-054
092.0-084
122.5-114
152.0-144
181.0-174
210.0-204
239.5-234
269.0-264
298.0-294
327.5-324
358.5-354}}}
1.5E 0.0 0.5W 0.5E Deviation of Standard Magnetic Compass
B You swung ship and compared the magnetic compass against the gyrocompass to find deviation. Gyro error is 2W. The variation is 8W. Find the deviation on a true heading of 236.
{{{
HEADING
PSC-   PGC
030.5-024
061.5-054
092.0-084
122.5-114
152.0-144
181.0-174
210.0-204
239.5-234
269.0-264
298.0-294
327.5-324
358.5-354}}}
1.5E 0.5E 0.0 1.0W Deviation of Standard Magnetic Compass
A You swung ship and compared the magnetic compass against the gyrocompass to find deviation. Gyro error is 2E. The variation is 8W. Find the deviation on a gyro heading of 166.
{{{
HEADING
PSC-   PGC
030.5-020
061.5-050
092.0-080
122.5-110
152.0-140
181.0-170
210.0-200
239.5-230
269.0-260
298.0-290
327.5-320
358.5-350}}}
1.0W 0.5W 1.0E 0.5E Deviation of Standard Magnetic Compass
C You swung ship and compared the magnetic compass against the gyro compass to find deviation. Gyro error is 2E. The variation is 8W. Find the deviation on a gyro heading of 037.
{{{
HEADING
PSC-   PGC
030.5-020
061.5-050
092.0-080
122.5-110
152.0-140
181.0-170
210.0-200
239.5-230
269.0-260
298.0-290
327.5-320
358.5-350}}}
1.5E 2.0E 1.0W 1.5W Deviation of Standard Magnetic Compass
C You swung ship and compared the magnetic compass against the gyrocompass to find deviation. Gyro error is 2E. The variation is 8W. Find the deviation on a true heading of 187.
{{{
HEADING
PSC-   PGC
030.5-020
061.5-050
092.0-080
122.5-110
152.0-140
181.0-170
210.0-200
239.5-230
269.0-260
298.0-290
327.5-320
358.5-350}}}
1.5W 1.0E 0.5W 0.0 Deviation of Standard Magnetic Compass
C While proceeding up a channel on course 010 per gyro compass, you notice a pair of range lights in alignment with the masts of your vessel when viewed forward. A check of the chart shows the range to be 009T and the variation to be 15W. If the ship's course is 026psc, what is the deviation for the present heading? 1W 1E 2W 2E Deviation, Gyro Error
D While your vessel is proceeding down a channel you notice a range of lights in line with your vessel's mast. If your vessel is on course 001 per gyro compass and the charted value of the range of lights is 359T, what is the gyro compass error? 2E 1W 1E 2W Deviation, Gyro Error
D Your vessel is proceeding up a channel, and you see a pair of range lights that are in line dead ahead. The chart indicates that the direction of this pair of lights is 283 T, and the variation is 13E. If the heading of your vessel at the time of the sighting is 278 per standard compass, what is the deviation? 5E 5W 8E 8W Deviation, Gyro Error
C Your vessel is proceeding up a channel, and you see a pair of range lights that are in line ahead. The chart indicates that the direction of this pair of lights is 196T, and the variation is 7E. If the heading of your vessel at the time of the sighting is 192 per standard magnetic compass, what is the deviation? 4E 3E 3W 4W Deviation, Gyro Error
A Your vessel is proceeding up a channel, and you see a pair of range lights that are in line dead ahead. The chart indicates that the direction of this pair of lights is 178T, and the variation is 9W. If the heading of your vessel at the time of the sighting is 180 per standard magnetic compass, what is the deviation? 7E 2E 2W 7W Deviation, Gyro Error
B Your vessel is proceeding up a channel, and you see a pair of range lights that are in line ahead. The chart indicates that the direction of this pair of lights is 064T, and the variation is 17W. If the heading of your vessel at the time of the sighting is 094 per standard magnetic compass, what is the correct deviation? 4W 13W 4E 13E Deviation, Gyro Error
A Your vessel is proceeding up a channel steering on a pair of range lights that are in line ahead. The chart indicates that the direction of this pair of lights is 249T, and the variation is 14E. If the heading of your vessel at the time of the sighting is 226 per standard magnetic compass, what is the correct deviation? 9E 5W 5E 9W Deviation, Gyro Error
B Your vessel is proceeding down a channel, and you see a pair of range lights that are in line dead ahead. The chart indicates that the direction of this pair of lights is 229T, and variation is 6W. If the heading of your vessel at the time of the sighting is 232 per standard magnetic compass, what is the deviation? 9E 3E 3W 9W Deviation, Gyro Error
B You are on course 251pgc and 241 per magnetic compass, when you observe a range in line bearing 192pgc. The chart indicates that the range is in line on a bearing of 194T. The variation is 16E. What is the deviation of the magnetic compass? 2W 4W 10W 2E Deviation, Gyro Error
C While entering a harbor on a course of 225 per gyrocompass, you take a bearing on a pair of range lights and get 220 per gyrocompass. The bearing on the chart is 217T. The variation for the area is 6W, and deviation is 2W. What course would you steer per gyrocompass to make good a true course of 232? 231pgc 229pgc 235pgc 233pgc Deviation, Gyro Error
B Entering a harbor, you take a bearing on a range and get 338 per gyrocompass (pgc). The true bearing from the chart is 340T. Variation for the area is 14E. Your course is 329 per standard magnetic compass (psc) and 338pgc. The deviation on this heading is __________. 5E 3W 5W 3E Deviation, Gyro Error
B You wish to check the deviation of your standard magnetic compass. You find a natural range that you steer for and note that the gyrocompass heading is 034, and the heading by standard magnetic compass is 026. The gyro error is 1W. Variation is 9E. What is the deviation for that heading? 9E 2W 0 2E Deviation, Gyro Error
C Your vessel is proceeding up a channel, and you see a pair of range lights that are in line dead ahead. The chart indicates that the direction of this pair of lights is 343T, and the variation is 5 west. If the heading of your vessel at the time of the sighting is 344 per standard magnetic compass, what is the correct deviation? 4W 1W 4E 1E Deviation, Gyro Error
A Two beacons form a range in the direction of 221.5T. The range is seen in line from your vessel bearing 223 per gyro compass. The variation in the area is 4E. What is the error of your gyro compass? 1.5W 5.5W 2.5W 2.5E Deviation, Gyro Error
D Your ship is entering port from sea, and you sight a pair of range lights. When in line, they bear 315 per standard magnetic compass. The chart shows that the range bearing is 312T, and that variation is 6W. What is the deviation of your compass at the time of the sighting? 9E 3W 9W 3E Deviation, Gyro Error
B Your vessel is proceeding up a channel, and you see a pair of range lights that are in line ahead. The chart indicates that the direction of this pair of lights is 014T, and the variation is 11E. If the heading of your vessel at the time of the sighting is 009 per standard magnetic compass, what is the correct deviation? 5W 6W 6E 5E Deviation, Gyro Error
D Your vessel is proceeding up a channel, and you see a pair of range lights that are in line ahead. The chart indicates that the direction of this pair of lights is 186T, and the variation is 11W. If the heading of your vessel at the time of the sighting is 193 per standard magnetic compass, what is the correct deviation? 7W 7E 4W 4E Deviation, Gyro Error
B Your vessel is proceeding up a channel, and you see a pair of range lights that are in line dead ahead. The chart indicates that the direction of this pair of lights is 093T, and the variation is 6E. If the heading of your vessel at the time of the sighting is 097 per standard magnetic compass, what is the correct deviation? 5W 10W 5E 10E Deviation, Gyro Error
A Your vessel is proceeding up a channel, and you see a pair of range lights that are in line ahead. The chart indicates that the direction of this pair of lights is 311T, and the variation is 8E. If the heading of your vessel at the time of the sighting is 305 per standard magnetic compass, what is the correct deviation? 2W 2E 6W 6E Deviation, Gyro Error
B Your vessel is proceeding up a channel, and you see a pair of range lights that are in line ahead. The chart indicates that the direction of this pair of lights is 212T, and the variation is 7W. If the heading of your vessel at the time of the sighting is 208 per standard magnetic compass, what is the correct deviation? 4E 11E 11W 4W Deviation, Gyro Error
B Your vessel is proceeding up a channel, and you see a pair of range lights that are in line ahead. The chart indicates that the direction of this pair of lights is 147T, and the variation is 5E. If the heading of your vessel at the time of the sighting is 148 per standard magnetic compass, what is the correct deviation? 6E 6W 1W 1E Deviation, Gyro Error
C Your vessel is proceeding up a channel, and you see a pair of range lights that are in line ahead. The chart indicates that the direction of this pair of lights is 352T, and the variation is 4W. If the heading of your vessel at the time of the sighting is 359 per standard magnetic compass, what is the correct deviation? 7E 11W 3W 11E Deviation, Gyro Error