Worksheet 111 · Skill 6
Course to steer
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You are at 309°T, 3.2 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 6.3 kn. The current sets 190°T at 1.8 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 000°T, 1.2 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 11.7 kn. The current sets 009°T at 1.8 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 267°T, 2.8 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 6.6 kn. The current sets 145°T at 0.6 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 246°T, 1.6 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.3 kn. The current sets 232°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 030°T, 1.3 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 8.8 kn. The current sets 094°T at 0.5 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 035°T, 1.6 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 10.4 kn. The current sets 314°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 019°T, 3.5 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 8.0 kn. The current sets 295°T at 1.0 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 301°T, 4.1 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 8.1 kn. The current sets 317°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 080 °T Speed over the ground: 5.9 kn Time to the mark: 66 min | No. 111001 (worked solution) |
| 2 | Course to steer: 097 °T Speed over the ground: 11.9 kn Time to the mark: 20 min | No. 111002 (worked solution) |
| 3 | Course to steer: 199 °T Speed over the ground: 7.0 kn Time to the mark: 26 min | No. 111003 (worked solution) |
| 4 | Course to steer: 217 °T Speed over the ground: 7.4 kn Time to the mark: 26 min | No. 111004 (worked solution) |
| 5 | Course to steer: 358 °T Speed over the ground: 8.8 kn Time to the mark: 39 min | No. 111005 (worked solution) |
| 6 | Course to steer: 032 °T Speed over the ground: 10.6 kn Time to the mark: 16 min | No. 111006 (worked solution) |
| 7 | Course to steer: 142 °T Speed over the ground: 7.1 kn Time to the mark: 48 min | No. 111007 (worked solution) |
| 8 | Course to steer: 163 °T Speed over the ground: 6.0 kn Time to the mark: 46 min | No. 111008 (worked solution) |