Worksheet 307 · Skill 6
Course to steer
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You are at 263°T, 1.5 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 5.0 kn. The current sets 009°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 229°T, 1.8 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 7.2 kn. The current sets 205°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 332°T, 1.8 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 10.6 kn. The current sets 146°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 044°T, 3.6 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 7.6 kn. The current sets 310°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 033°T, 2.7 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 6.8 kn. The current sets 228°T at 0.7 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 259°T, 2.5 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 10.7 kn. The current sets 074°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 022°T, 1.7 nm from Mill stack, bound for Green can "3". Your speed through the water is 8.5 kn. The current sets 187°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 295°T, 4.1 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.3 kn. The current sets 208°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 059 °T Speed over the ground: 6.9 kn Time to the mark: 47 min | No. 307001 (worked solution) |
| 2 | Course to steer: 303 °T Speed over the ground: 7.2 kn Time to the mark: 30 min | No. 307002 (worked solution) |
| 3 | Course to steer: 075 °T Speed over the ground: 11.3 kn Time to the mark: 17 min | No. 307003 (worked solution) |
| 4 | Course to steer: 241 °T Speed over the ground: 8.6 kn Time to the mark: 44 min | No. 307004 (worked solution) |
| 5 | Course to steer: 357 °T Speed over the ground: 6.4 kn Time to the mark: 43 min | No. 307005 (worked solution) |
| 6 | Course to steer: 276 °T Speed over the ground: 8.6 kn Time to the mark: 17 min | No. 307006 (worked solution) |
| 7 | Course to steer: 355 °T Speed over the ground: 6.2 kn Time to the mark: 30 min | No. 307007 (worked solution) |
| 8 | Course to steer: 175 °T Speed over the ground: 10.2 kn Time to the mark: 28 min | No. 307008 (worked solution) |