Worksheet 100 · Skill 6
Course to steer
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You are at 318°T, 2.6 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 11.0 kn. The current sets 117°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 045°T, 3.2 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 10.2 kn. The current sets 152°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 061°T, 1.6 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 8.1 kn. The current sets 274°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 233°T, 2.4 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 5.9 kn. The current sets 051°T at 1.5 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 263°T, 3.4 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 9.3 kn. The current sets 180°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 117°T, 1.6 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 7.8 kn. The current sets 139°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 344°T, 1.6 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 10.0 kn. The current sets 311°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 024°T, 1.7 nm from Mill stack, bound for Green can "1". Your speed through the water is 8.9 kn. The current sets 347°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 183 °T Speed over the ground: 11.3 kn Time to the mark: 19 min | No. 100001 (worked solution) |
| 2 | Course to steer: 257 °T Speed over the ground: 10.0 kn Time to the mark: 44 min | No. 100002 (worked solution) |
| 3 | Course to steer: 300 °T Speed over the ground: 9.3 kn Time to the mark: 45 min | No. 100003 (worked solution) |
| 4 | Course to steer: 311 °T Speed over the ground: 5.8 kn Time to the mark: 29 min | No. 100004 (worked solution) |
| 5 | Course to steer: 115 °T Speed over the ground: 10.3 kn Time to the mark: 12 min | No. 100005 (worked solution) |
| 6 | Course to steer: 287 °T Speed over the ground: 6.2 kn Time to the mark: 61 min | No. 100006 (worked solution) |
| 7 | Course to steer: 240 °T Speed over the ground: 10.9 kn Time to the mark: 26 min | No. 100007 (worked solution) |
| 8 | Course to steer: 297 °T Speed over the ground: 9.6 kn Time to the mark: 18 min | No. 100008 (worked solution) |