Worksheet 210 · Skill 6
Course to steer
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You are at 307°T, 3.8 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 11.2 kn. The current sets 160°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 138°T, 1.4 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 10.8 kn. The current sets 341°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 020°T, 1.3 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 5.4 kn. The current sets 149°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 331°T, 2.8 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 10.7 kn. The current sets 146°T at 2.5 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 018°T, 2.5 nm from Mill stack, bound for Red nun "2". Your speed through the water is 12.0 kn. The current sets 074°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 355°T, 1.6 nm from Mill stack, bound for Green can "3". Your speed through the water is 6.0 kn. The current sets 111°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 309°T, 1.2 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 6.1 kn. The current sets 306°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 113°T, 1.6 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.7 kn. The current sets 065°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 091 °T Speed over the ground: 11.9 kn Time to the mark: 36 min | No. 210001 (worked solution) |
| 2 | Course to steer: 064 °T Speed over the ground: 11.3 kn Time to the mark: 20 min | No. 210002 (worked solution) |
| 3 | Course to steer: 352 °T Speed over the ground: 3.7 kn Time to the mark: 90 min | No. 210003 (worked solution) |
| 4 | Course to steer: 213 °T Speed over the ground: 11.9 kn Time to the mark: 30 min | No. 210004 (worked solution) |
| 5 | Course to steer: 298 °T Speed over the ground: 11.0 kn Time to the mark: 13 min | No. 210005 (worked solution) |
| 6 | Course to steer: 352 °T Speed over the ground: 5.5 kn Time to the mark: 33 min | No. 210006 (worked solution) |
| 7 | Course to steer: 243 °T Speed over the ground: 6.8 kn Time to the mark: 41 min | No. 210007 (worked solution) |
| 8 | Course to steer: 265 °T Speed over the ground: 3.9 kn Time to the mark: 97 min | No. 210008 (worked solution) |