This Naiad fin is pressed onto its splined shaft, and stays put without fastenings. Removing it requires special equipment, though. Note the narrow winglet at the tip of the fin to make it more efficient.
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. ▶