Worksheet 618 · Skill 6
Course to steer
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You are at 059°T, 1.9 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 8.5 kn. The current sets 116°T at 1.6 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 077°T, 1.9 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.3 kn. The current sets 105°T at 1.1 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 074°T, 3.6 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 6.0 kn. The current sets 229°T at 1.6 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 162°T, 1.1 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 8.8 kn. The current sets 068°T at 1.2 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 076°T, 2.9 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 10.6 kn. The current sets 122°T at 2.3 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 006°T, 3.4 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 8.6 kn. The current sets 345°T at 2.1 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 288°T, 2.2 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 11.7 kn. The current sets 315°T at 1.6 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 128°T, 1.5 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 7.4 kn. The current sets 238°T at 1.2 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 076 °T Speed over the ground: 9.8 kn Time to the mark: 15 min | No. 618001 (worked solution) |
| 2 | Course to steer: 357 °T Speed over the ground: 7.0 kn Time to the mark: 29 min | No. 618002 (worked solution) |
| 3 | Course to steer: 110 °T Speed over the ground: 5.4 kn Time to the mark: 29 min | No. 618003 (worked solution) |
| 4 | Course to steer: 291 °T Speed over the ground: 8.0 kn Time to the mark: 32 min | No. 618004 (worked solution) |
| 5 | Course to steer: 278 °T Speed over the ground: 8.5 kn Time to the mark: 44 min | No. 618005 (worked solution) |
| 6 | Course to steer: 152 °T Speed over the ground: 6.6 kn Time to the mark: 58 min | No. 618006 (worked solution) |
| 7 | Course to steer: 166 °T Speed over the ground: 10.4 kn Time to the mark: 13 min | No. 618007 (worked solution) |
| 8 | Course to steer: 278 °T Speed over the ground: 8.4 kn Time to the mark: 47 min | No. 618008 (worked solution) |