Sailing Nahoavideo
Why aluminium ALONE is NOT the answer
23 August 2026 · 20 min · 52K views · the Atlantic Ocean, approaching the Caribbean
What this video covers
Offshore vessel design requires balancing structural integrity, steering performance, and haul-out compatibility, as aluminium construction alone does not guarantee safety. High-aspect rudders provide superior control and grip in heavy seas by remaining submerged during heeling, but they experience higher stress on rudder stocks compared to low-aspect, cruising-style rudders. When selecting a vessel for remote regions, owners must consider how the hull structure accommodates hydraulic trailers, such as those manufactured by Roedberg, which are common in the South Pacific and Southeast Asia. These trailers lift boats from specific pressure points, necessitating clearly marked, reinforced lifting zones to prevent structural damage. Beyond hull material, internal fit-out details—including watertight crash boxes, redundant steering systems, and properly maintained bilge pumps—determine a vessel's survivability. The transition from a standard cruising catamaran to an expedition-style vessel involves prioritising robust, simple systems that allow for self-maintenance in remote locations. Understanding the trade-offs between complex, redundant systems and simple, repairable ones remains essential for safe, long-distance voyaging.
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