Worksheet 70 · Skill 6
Course to steer
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You are at 214°T, 2.9 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 8.3 kn. The current sets 016°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 055°T, 3.5 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 8.3 kn. The current sets 131°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 187°T, 0.9 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 6.2 kn. The current sets 074°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 228°T, 2.0 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 10.7 kn. The current sets 041°T at 0.7 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 067°T, 1.1 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 10.7 kn. The current sets 332°T at 0.6 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 325°T, 1.4 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 5.1 kn. The current sets 124°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 068°T, 2.1 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 5.2 kn. The current sets 337°T at 0.8 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 020°T, 2.3 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 6.8 kn. The current sets 137°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: 238 °T Speed over the ground: 6.8 kn Time to the mark: 19 min | No. 70001 (worked solution) |
| 2 | Course to steer: 267 °T Speed over the ground: 7.5 kn Time to the mark: 52 min | No. 70002 (worked solution) |
| 3 | Course to steer: 282 °T Speed over the ground: 4.2 kn Time to the mark: 55 min | No. 70003 (worked solution) |
| 4 | Course to steer: 277 °T Speed over the ground: 10.3 kn Time to the mark: 23 min | No. 70004 (worked solution) |
| 5 | Course to steer: 051 °T Speed over the ground: 10.8 kn Time to the mark: 20 min | No. 70005 (worked solution) |
| 6 | Course to steer: 218 °T Speed over the ground: 5.3 kn Time to the mark: 33 min | No. 70006 (worked solution) |
| 7 | Course to steer: 116 °T Speed over the ground: 4.6 kn Time to the mark: 50 min | No. 70007 (worked solution) |
| 8 | Course to steer: 287 °T Speed over the ground: 5.2 kn Time to the mark: 81 min | No. 70008 (worked solution) |