Worksheet 160 · Skill 6
Course to steer
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You are at 105°T, 1.5 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 10.0 kn. The current sets 221°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 315°T, 1.2 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.2 kn. The current sets 277°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 317°T, 2.7 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 8.8 kn. The current sets 138°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 323°T, 3.0 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 7.9 kn. The current sets 223°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 031°T, 3.0 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.1 kn. The current sets 185°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
You are at 321°T, 2.5 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 6.1 kn. The current sets 277°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 069°T, 2.4 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 11.8 kn. The current sets 185°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 041°T, 1.7 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 12.0 kn. The current sets 063°T at 1.4 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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 106 °T Speed over the ground: 9.8 kn Time to the mark: 19 min | No. 160001 (worked solution) |
| 2 | Course to steer: 249 °T Speed over the ground: 7.4 kn Time to the mark: 33 min | No. 160002 (worked solution) |
| 3 | Course to steer: 198 °T Speed over the ground: 9.1 kn Time to the mark: 30 min | No. 160003 (worked solution) |
| 4 | Course to steer: 188 °T Speed over the ground: 9.3 kn Time to the mark: 33 min | No. 160004 (worked solution) |
| 5 | Course to steer: 131 °T Speed over the ground: 6.4 kn Time to the mark: 45 min | No. 160005 (worked solution) |
| 6 | Course to steer: 165 °T Speed over the ground: 5.7 kn Time to the mark: 37 min | No. 160006 (worked solution) |
| 7 | Course to steer: 273 °T Speed over the ground: 12.1 kn Time to the mark: 35 min | No. 160007 (worked solution) |
| 8 | Course to steer: 093 °T Speed over the ground: 13.2 kn Time to the mark: 13 min | No. 160008 (worked solution) |