Worksheet 188 · Skill 6
Course to steer
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You are at 019°T, 2.4 nm from Mill stack, bound for Green can "1". Your speed through the water is 9.5 kn. The current sets 357°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 012°T, 1.7 nm from Kittle water tank, bound for Bell buoy "HS". Your speed through the water is 10.1 kn. The current sets 141°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 013°T, 1.7 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 10.4 kn. The current sets 288°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 044°T, 2.3 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 11.6 kn. The current sets 117°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 006°T, 3.2 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 6.4 kn. The current sets 087°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 230°T, 2.7 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 10.2 kn. The current sets 086°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 004°T, 1.5 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 7.7 kn. The current sets 268°T at 1.5 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 047°T, 3.3 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 6.3 kn. The current sets 292°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 284 °T Speed over the ground: 9.7 kn Time to the mark: 17 min | No. 188001 (worked solution) |
| 2 | Course to steer: 357 °T Speed over the ground: 8.6 kn Time to the mark: 36 min | No. 188002 (worked solution) |
| 3 | Course to steer: 131 °T Speed over the ground: 8.2 kn Time to the mark: 36 min | No. 188003 (worked solution) |
| 4 | Course to steer: 011 °T Speed over the ground: 11.4 kn Time to the mark: 12 min | No. 188004 (worked solution) |
| 5 | Course to steer: 138 °T Speed over the ground: 8.1 kn Time to the mark: 48 min | No. 188005 (worked solution) |
| 6 | Course to steer: 232 °T Speed over the ground: 9.4 kn Time to the mark: 13 min | No. 188006 (worked solution) |
| 7 | Course to steer: 106 °T Speed over the ground: 6.3 kn Time to the mark: 56 min | No. 188007 (worked solution) |
| 8 | Course to steer: 252 °T Speed over the ground: 7.1 kn Time to the mark: 51 min | No. 188008 (worked solution) |