Set & Drift - Current Triangle
Resolve set and drift of a current into along-track and across-track components for leeway compensation - the classical vector triangle.
Along-track component
1.15kn
Across-track component
-0.96kn
Formula, assumptions, and limits
Positive along-track = aid-to-making-way; positive cross-track = drift to starboard of intended track. Use for steering-correction in DR passage planning.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Current set (toward) | °T | chart / ECDIS | |
| Drift speed | kn | tide tables | |
| Course over ground | °T | GPS |