Worksheet 99 · Skill 6
Course to steer
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You are at 299°T, 4.5 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.6 kn. The current sets 265°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 042°T, 2.8 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 7.7 kn. The current sets 235°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 032°T, 1.0 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 5.7 kn. The current sets 069°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 147°T, 3.2 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.4 kn. The current sets 212°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 042°T, 2.5 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 10.5 kn. The current sets 042°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 309°T, 1.5 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 9.1 kn. The current sets 006°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
You are at 012°T, 2.5 nm from Mill stack, bound for Green can "3". Your speed through the water is 8.7 kn. The current sets 081°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 324°T, 3.1 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 7.3 kn. The current sets 072°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 139 °T Speed over the ground: 7.7 kn Time to the mark: 34 min | No. 99001 (worked solution) |
| 2 | Course to steer: 116 °T Speed over the ground: 7.2 kn Time to the mark: 38 min | No. 99002 (worked solution) |
| 3 | Course to steer: 286 °T Speed over the ground: 4.5 kn Time to the mark: 84 min | No. 99003 (worked solution) |
| 4 | Course to steer: 062 °T Speed over the ground: 7.6 kn Time to the mark: 16 min | No. 99004 (worked solution) |
| 5 | Course to steer: 148 °T Speed over the ground: 10.2 kn Time to the mark: 25 min | No. 99005 (worked solution) |
| 6 | Course to steer: 278 °T Speed over the ground: 9.2 kn Time to the mark: 38 min | No. 99006 (worked solution) |
| 7 | Course to steer: 333 °T Speed over the ground: 8.3 kn Time to the mark: 16 min | No. 99007 (worked solution) |
| 8 | Course to steer: 286 °T Speed over the ground: 6.1 kn Time to the mark: 33 min | No. 99008 (worked solution) |