Practice
Eight skills. Unlimited problems.
Pick a skill for a fresh problem, or open problem 1 to start where everyone starts. Skills 1 to 4 are free; 5 to 8 come with the Plot Pass (Plot Pass $1.95/month or $19.50/year · Free during preview).
| No. | Skill | What you work out | Start |
|---|---|---|---|
| 1 | Compass conversions Free |
True, variation, magnetic, deviation, compass: both directions. | New problem Problem 1 |
| 2 | Time, speed, distance Free |
Sixty D equals S T: find the one you are missing. | New problem Problem 1 |
| 3 | Dead reckoning Free |
Two legs from a fix: where does the DR put you? Worked on the practice chart. | New problem Problem 1 |
| 4 | Two-bearing fix Free |
Hand-bearing compass on two charted objects: plot the fix. Worked on the practice chart. | New problem Problem 1 |
| 5 | Set and drift Plot Pass |
DR against the fix you got: which way and how fast is the water moving? Worked on the practice chart. | New problem Problem 1 |
| 6 | Course to steer Plot Pass |
Allow for the current: heading, speed made good, minutes to the mark. Worked on the practice chart. | New problem Problem 1 |
| 7 | Doubling the angle on the bow Plot Pass |
Two bow angles and a stopwatch: distance off now and when abeam. Worked on the practice chart. | New problem Problem 1 |
| 8 | Light rising Plot Pass |
Height of eye, height of the light: when will it show over the horizon? | New problem Problem 1 |
The chart, its coastline, its lights and its variation (7°W) are invented for practice. Never use them for navigation.