Worksheet 305 · Skill 6
Course to steer
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You are at 301°T, 2.4 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 9.0 kn. The current sets 244°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 231°T, 2.2 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 10.1 kn. The current sets 220°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 331°T, 1.5 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 5.8 kn. The current sets 248°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 025°T, 3.2 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.5 kn. The current sets 286°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 001°T, 1.4 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 6.9 kn. The current sets 257°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 036°T, 1.2 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 7.7 kn. The current sets 064°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 155°T, 2.7 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 6.9 kn. The current sets 010°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 253°T, 3.6 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.8 kn. The current sets 030°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 163 °T Speed over the ground: 9.4 kn Time to the mark: 18 min | No. 305001 (worked solution) |
| 2 | Course to steer: 304 °T Speed over the ground: 10.4 kn Time to the mark: 19 min | No. 305002 (worked solution) |
| 3 | Course to steer: 028 °T Speed over the ground: 4.7 kn Time to the mark: 73 min | No. 305003 (worked solution) |
| 4 | Course to steer: 141 °T Speed over the ground: 5.7 kn Time to the mark: 57 min | No. 305004 (worked solution) |
| 5 | Course to steer: 115 °T Speed over the ground: 5.2 kn Time to the mark: 58 min | No. 305005 (worked solution) |
| 6 | Course to steer: 275 °T Speed over the ground: 5.9 kn Time to the mark: 73 min | No. 305006 (worked solution) |
| 7 | Course to steer: 264 °T Speed over the ground: 6.8 kn Time to the mark: 37 min | No. 305007 (worked solution) |
| 8 | Course to steer: 193 °T Speed over the ground: 4.0 kn Time to the mark: 31 min | No. 305008 (worked solution) |