Worksheet 75 · Skill 6
Course to steer
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You are at 241°T, 1.4 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 10.1 kn. The current sets 181°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 158°T, 1.5 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 7.1 kn. The current sets 018°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 231°T, 1.6 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 9.3 kn. The current sets 171°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 148°T, 2.3 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 5.5 kn. The current sets 144°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 038°T, 1.9 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 5.4 kn. The current sets 195°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 049°T, 3.8 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 11.4 kn. The current sets 213°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 262°T, 3.3 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 8.8 kn. The current sets 343°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 002°T, 1.9 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 10.5 kn. The current sets 342°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 034 °T Speed over the ground: 9.4 kn Time to the mark: 36 min | No. 75001 (worked solution) |
| 2 | Course to steer: 097 °T Speed over the ground: 7.9 kn Time to the mark: 39 min | No. 75002 (worked solution) |
| 3 | Course to steer: 290 °T Speed over the ground: 9.0 kn Time to the mark: 25 min | No. 75003 (worked solution) |
| 4 | Course to steer: 281 °T Speed over the ground: 5.1 kn Time to the mark: 34 min | No. 75004 (worked solution) |
| 5 | Course to steer: 001 °T Speed over the ground: 4.1 kn Time to the mark: 79 min | No. 75005 (worked solution) |
| 6 | Course to steer: 131 °T Speed over the ground: 11.7 kn Time to the mark: 21 min | No. 75006 (worked solution) |
| 7 | Course to steer: 180 °T Speed over the ground: 6.5 kn Time to the mark: 25 min | No. 75007 (worked solution) |
| 8 | Course to steer: 239 °T Speed over the ground: 10.3 kn Time to the mark: 35 min | No. 75008 (worked solution) |