Worksheet 397 · Skill 6
Course to steer
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You are at 143°T, 1.4 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 5.7 kn. The current sets 241°T at 1.8 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 314°T, 3.2 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.3 kn. The current sets 299°T at 1.7 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 351°T, 2.0 nm from Heron Point Light, bound for Green can "1". Your speed through the water is 9.7 kn. The current sets 076°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 053°T, 1.6 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 5.7 kn. The current sets 295°T at 1.3 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 338°T, 2.6 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 9.5 kn. The current sets 309°T at 2.5 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 235°T, 2.3 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.2 kn. The current sets 326°T at 2.4 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 013°T, 3.4 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.1 kn. The current sets 219°T at 2.0 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 253°T, 1.1 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.6 kn. The current sets 086°T at 1.9 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: 265 °T Speed over the ground: 7.4 kn Time to the mark: 21 min | No. 397001 (worked solution) |
| 2 | Course to steer: 162 °T Speed over the ground: 7.1 kn Time to the mark: 32 min | No. 397002 (worked solution) |
| 3 | Course to steer: 112 °T Speed over the ground: 11.6 kn Time to the mark: 11 min | No. 397003 (worked solution) |
| 4 | Course to steer: 264 °T Speed over the ground: 6.8 kn Time to the mark: 42 min | No. 397004 (worked solution) |
| 5 | Course to steer: 037 °T Speed over the ground: 9.9 kn Time to the mark: 29 min | No. 397005 (worked solution) |
| 6 | Course to steer: 197 °T Speed over the ground: 4.1 kn Time to the mark: 36 min | No. 397006 (worked solution) |
| 7 | Course to steer: 139 °T Speed over the ground: 9.7 kn Time to the mark: 38 min | No. 397007 (worked solution) |
| 8 | Course to steer: 028 °T Speed over the ground: 8.7 kn Time to the mark: 36 min | No. 397008 (worked solution) |