Worksheet 176 · Skill 6
Course to steer
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You are at 047°T, 3.6 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 9.6 kn. The current sets 348°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 049°T, 2.7 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 11.1 kn. The current sets 286°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 065°T, 3.6 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 10.4 kn. The current sets 239°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 006°T, 1.3 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 8.9 kn. The current sets 051°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 098°T, 1.3 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 5.7 kn. The current sets 139°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 070°T, 2.2 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 10.9 kn. The current sets 053°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 296°T, 3.8 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.6 kn. The current sets 105°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 088°T, 2.8 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 6.3 kn. The current sets 012°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 248 °T Speed over the ground: 9.5 kn Time to the mark: 40 min | No. 176001 (worked solution) |
| 2 | Course to steer: 137 °T Speed over the ground: 9.2 kn Time to the mark: 25 min | No. 176002 (worked solution) |
| 3 | Course to steer: 165 °T Speed over the ground: 10.9 kn Time to the mark: 20 min | No. 176003 (worked solution) |
| 4 | Course to steer: 145 °T Speed over the ground: 9.0 kn Time to the mark: 32 min | No. 176004 (worked solution) |
| 5 | Course to steer: 359 °T Speed over the ground: 4.5 kn Time to the mark: 54 min | No. 176005 (worked solution) |
| 6 | Course to steer: 265 °T Speed over the ground: 9.2 kn Time to the mark: 36 min | No. 176006 (worked solution) |
| 7 | Course to steer: 194 °T Speed over the ground: 5.7 kn Time to the mark: 50 min | No. 176007 (worked solution) |
| 8 | Course to steer: 152 °T Speed over the ground: 4.8 kn Time to the mark: 26 min | No. 176008 (worked solution) |