Worksheet 420 · Skill 6
Course to steer
Plot Pass worksheet. Plot Pass $1.95/month or $19.50/year · Free during preview. Plotroom · cedarpointmarina.net · invented chart, not for navigation.
You are at 060°T, 2.4 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.1 kn. The current sets 206°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 024°T, 1.7 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 8.7 kn. The current sets 180°T at 0.6 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 036°T, 2.2 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 6.3 kn. The current sets 045°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 185°T, 1.9 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 6.0 kn. The current sets 233°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 017°T, 3.1 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 9.4 kn. The current sets 030°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 331°T, 2.2 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 10.3 kn. The current sets 016°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 049°T, 1.1 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 8.3 kn. The current sets 094°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 334°T, 1.0 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 11.1 kn. The current sets 151°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: 147 °T Speed over the ground: 7.7 kn Time to the mark: 28 min | No. 420001 (worked solution) |
| 2 | Course to steer: 090 °T Speed over the ground: 8.7 kn Time to the mark: 23 min | No. 420002 (worked solution) |
| 3 | Course to steer: 251 °T Speed over the ground: 5.7 kn Time to the mark: 67 min | No. 420003 (worked solution) |
| 4 | Course to steer: 290 °T Speed over the ground: 6.5 kn Time to the mark: 50 min | No. 420004 (worked solution) |
| 5 | Course to steer: 133 °T Speed over the ground: 9.2 kn Time to the mark: 38 min | No. 420005 (worked solution) |
| 6 | Course to steer: 102 °T Speed over the ground: 10.4 kn Time to the mark: 29 min | No. 420006 (worked solution) |
| 7 | Course to steer: 262 °T Speed over the ground: 6.3 kn Time to the mark: 61 min | No. 420007 (worked solution) |
| 8 | Course to steer: 310 °T Speed over the ground: 8.8 kn Time to the mark: 37 min | No. 420008 (worked solution) |