Answers to Relative Bearings Practice Lesson

Coastal Navigation Course
Chapter IX

Answers to Relative Bearings Practice Lesson

1. Brenton Reef light bears 225° T. Your current course is 059° T. The relative bearing of Brenton Reef light is 166°.
True Bearing – Ship’s Heading = Relative Bearing – 225 – 059 = 166
2. Cleveland Ledge Channel light bears 325° relative. Your course is 135° T. The true bearing to the Cleveland Ledge Channel light is 100°.
Relative Bearing + Ships Heading = True Bearing – 325 + 135 = 100
(Remember when adding, if your total is over 360° you must subtract 360°).
3. Rudee Inlet light bears 035° relative. Your course is 156° T. The true bearing to the Rudee Inlet light is 191°.
Relative Bearing + Ships Heading = True Bearing – 035 + 156 = 191
4. Moose head shoal light bears 224° T. Your course is 270° T. The relative bearing to the Moose head shoal light is 314°.
True Bearing – Ship’s Heading = Relative Bearing – 224 – 270 = 314
(Remember when relative is less than ship’s heading add 360° to answer).
5. Hell’s Gate point light bears 270° relative. Your course is 180° T. The true bearing to Hell’s Gate point light is 090°.
Relative Bearing + Ships Heading = True Bearing -270 + 180 = 090
6. The light at Keenan Point bears 066° T. Your course is 134° T. The relative bearing to Keenan Point light is 292°.
True Bearing – Ship’s Heading = Relative Bearing – 066 – 134 = 292
7. Bull Shoals light bears 119° T. Your course is 235° T. The relative bearing to the light is 244°.
True Bearing – Ship’s Heading = Relative Bearing – 119 – 235 = 244
8. The lighthouse at Judith point bears 340° relative. Your course is 080° T. The true bearing to the point Judith lighthouse is 060°.
Relative Bearing + Ships Heading = True Bearing -340 + 080 = 060
9. The buoy marked R4 Fl 4 sec bears 115° T. Your course is 220° T. The relative bearing of the buoy is 255°.
True Bearing – Ship’s Heading = Relative Bearing – 115 – 220 = 255
10. Muscle shoals danger buoy bears 145° relative. Your course is 190° T. The true bearing to the danger buoy is 335°.
Relative Bearing + Ships Heading = True Bearing -145 + 190 = 335

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