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.
If you plan on going to Miami for the boat shows—or even if you don’t—it’s good to know what’s going on. Our panel of experts weigh in on what to look for at the Miami shows. See what they had to say here. ▶