Worksheet 250 · Skill 6
Course to steer
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You are at 034°T, 4.0 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.2 kn. The current sets 268°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 326°T, 2.1 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 7.7 kn. The current sets 353°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 136°T, 2.8 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 6.0 kn. The current sets 005°T at 0.8 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 298°T, 3.7 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 5.4 kn. The current sets 257°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 015°T, 1.9 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 9.5 kn. The current sets 227°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, 2.8 nm from Mill stack, bound for Bell buoy "HS". Your speed through the water is 5.9 kn. The current sets 159°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 069°T, 1.9 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 5.1 kn. The current sets 320°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 267°T, 2.1 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 6.2 kn. The current sets 040°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 142 °T Speed over the ground: 4.5 kn Time to the mark: 68 min | No. 250001 (worked solution) |
| 2 | Course to steer: 102 °T Speed over the ground: 7.4 kn Time to the mark: 42 min | No. 250002 (worked solution) |
| 3 | Course to steer: 257 °T Speed over the ground: 5.8 kn Time to the mark: 51 min | No. 250003 (worked solution) |
| 4 | Course to steer: 087 °T Speed over the ground: 3.3 kn Time to the mark: 134 min | No. 250004 (worked solution) |
| 5 | Course to steer: 119 °T Speed over the ground: 9.1 kn Time to the mark: 33 min | No. 250005 (worked solution) |
| 6 | Course to steer: 029 °T Speed over the ground: 4.9 kn Time to the mark: 87 min | No. 250006 (worked solution) |
| 7 | Course to steer: 091 °T Speed over the ground: 4.2 kn Time to the mark: 33 min | No. 250007 (worked solution) |
| 8 | Course to steer: 211 °T Speed over the ground: 4.1 kn Time to the mark: 49 min | No. 250008 (worked solution) |