Worksheet 280 · Skill 6
Course to steer
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You are at 021°T, 2.5 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 6.2 kn. The current sets 296°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 272°T, 3.2 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 8.6 kn. The current sets 135°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
You are at 050°T, 2.6 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 6.6 kn. The current sets 281°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 315°T, 1.4 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 11.1 kn. The current sets 183°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 313°T, 2.5 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 7.7 kn. The current sets 309°T at 2.2 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 290°T, 3.5 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 6.6 kn. The current sets 034°T at 0.9 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 188°T, 1.6 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 7.0 kn. The current sets 009°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 028°T, 2.6 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 6.7 kn. The current sets 198°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: 236 °T Speed over the ground: 6.9 kn Time to the mark: 60 min | No. 280001 (worked solution) |
| 2 | Course to steer: 182 °T Speed over the ground: 9.6 kn Time to the mark: 16 min | No. 280002 (worked solution) |
| 3 | Course to steer: 135 °T Speed over the ground: 5.6 kn Time to the mark: 41 min | No. 280003 (worked solution) |
| 4 | Course to steer: 310 °T Speed over the ground: 10.7 kn Time to the mark: 27 min | No. 280004 (worked solution) |
| 5 | Course to steer: 103 °T Speed over the ground: 5.8 kn Time to the mark: 60 min | No. 280005 (worked solution) |
| 6 | Course to steer: 157 °T Speed over the ground: 6.2 kn Time to the mark: 31 min | No. 280006 (worked solution) |
| 7 | Course to steer: 279 °T Speed over the ground: 7.1 kn Time to the mark: 41 min | No. 280007 (worked solution) |
| 8 | Course to steer: 258 °T Speed over the ground: 7.5 kn Time to the mark: 52 min | No. 280008 (worked solution) |