Worksheet 550 · Skill 6
Course to steer
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You are at 134°T, 1.5 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.4 kn. The current sets 221°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 028°T, 2.7 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.9 kn. The current sets 086°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 008°T, 3.5 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 11.4 kn. The current sets 009°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 111°T, 2.1 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 8.1 kn. The current sets 205°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 251°T, 2.0 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.1 kn. The current sets 297°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 029°T, 2.5 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 10.9 kn. The current sets 201°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 044°T, 4.3 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 6.4 kn. The current sets 050°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 149°T, 1.7 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 10.4 kn. The current sets 294°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 089 °T Speed over the ground: 4.9 kn Time to the mark: 40 min | No. 550001 (worked solution) |
| 2 | Course to steer: 253 °T Speed over the ground: 4.5 kn Time to the mark: 86 min | No. 550002 (worked solution) |
| 3 | Course to steer: 157 °T Speed over the ground: 9.5 kn Time to the mark: 40 min | No. 550003 (worked solution) |
| 4 | Course to steer: 277 °T Speed over the ground: 8.4 kn Time to the mark: 52 min | No. 550004 (worked solution) |
| 5 | Course to steer: 276 °T Speed over the ground: 7.3 kn Time to the mark: 25 min | No. 550005 (worked solution) |
| 6 | Course to steer: 289 °T Speed over the ground: 11.3 kn Time to the mark: 40 min | No. 550006 (worked solution) |
| 7 | Course to steer: 176 °T Speed over the ground: 6.1 kn Time to the mark: 50 min | No. 550007 (worked solution) |
| 8 | Course to steer: 094 °T Speed over the ground: 8.4 kn Time to the mark: 25 min | No. 550008 (worked solution) |