A low-aspect fin (wide but not too deep) is required on this big yacht to minimize draft; otherwise the fin would project beneath the keel. High-aspect fins (narrow and deep) are more efficient, because of their longer leading edge, but not always practical.
While many boaters rely on a weather forecasts generated thousands of miles away, all the information you need to make good decisions may be right outside your window. Here's how to make the most of it. ▶