Worksheet 281 · Skill 6
Course to steer
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You are at 062°T, 1.4 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 5.8 kn. The current sets 221°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
You are at 089°T, 1.7 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 11.6 kn. The current sets 298°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
You are at 001°T, 1.2 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 11.9 kn. The current sets 052°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 127°T, 1.8 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 6.3 kn. The current sets 044°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 052°T, 2.4 nm from Mill stack, bound for Green can "1". Your speed through the water is 11.0 kn. The current sets 268°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 340°T, 2.9 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 7.0 kn. The current sets 139°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 252°T, 1.8 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 5.6 kn. The current sets 274°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 356°T, 3.3 nm from Mill stack, bound for Bell buoy "HS". Your speed through the water is 12.0 kn. The current sets 220°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 289 °T Speed over the ground: 6.8 kn Time to the mark: 42 min | No. 281001 (worked solution) |
| 2 | Course to steer: 066 °T Speed over the ground: 11.0 kn Time to the mark: 14 min | No. 281002 (worked solution) |
| 3 | Course to steer: 074 °T Speed over the ground: 13.7 kn Time to the mark: 11 min | No. 281003 (worked solution) |
| 4 | Course to steer: 094 °T Speed over the ground: 7.8 kn Time to the mark: 32 min | No. 281004 (worked solution) |
| 5 | Course to steer: 298 °T Speed over the ground: 12.7 kn Time to the mark: 19 min | No. 281005 (worked solution) |
| 6 | Course to steer: 010 °T Speed over the ground: 6.0 kn Time to the mark: 44 min | No. 281006 (worked solution) |
| 7 | Course to steer: 205 °T Speed over the ground: 6.0 kn Time to the mark: 23 min | No. 281007 (worked solution) |
| 8 | Course to steer: 052 °T Speed over the ground: 9.6 kn Time to the mark: 46 min | No. 281008 (worked solution) |