Sailing Nahoa · video

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Displacement sailboats are limited by hull speed, a theoretical maximum velocity calculated as 1.34 times the square root of the waterline length.▶ 2:51 As a vessel approaches this speed, it becomes trapped in the trough between its own bow and stern waves, requiring enormous force to overcome this resistance and begin planing.▶ 3:22 Modern boat design seeks to increase waterline length—often through reverse bows or vertical sterns—to raise this speed threshold without adding excessive weight or volume.▶ 4:40 However, increasing length scales costs exponentially due to the resulting need for larger rigs, stronger winches, and more robust electrical and hydraulic systems.▶ 5:13 Beyond raw speed, effective cruising design must balance these performance factors with practical liveaboard requirements, including substantial refrigeration, freezer capacity, fuel storage, and ergonomic solutions for seasick crew.▶ 15:14 The crew of Nahoa currently manages these design trade-offs while navigating the Tuamotu Archipelago, where limited local supplies of flour, gasoline, and diesel highlight the necessity of self-sufficiency in remote cruising grounds.▶ 10:06

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