File:Südseeabteilung in Ethnological Museum Berlin 11d.jpg
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 20:21, 5 January 2017 | | 5,026 × 6,844 (15.61 MB) | 127.0.0.1 (talk) | Bluewater outrigger boat with a crab-claw sail; Taumako / Nifiloli; Santa Cruz-Inseln. The crab-claw sail is as efficient as a square sail of the same overall dimensions (as tested in windtunnels). Presumably the scooped-out outline of the sail prevents flow separation by channeling the wind across the sail, avoiding concentrations of pressure. The dangling "ornaments" the sail provide turbulence control (near edge of picture). When reaching, the boat can reverse direction without turning. Only the sail must be turned from "forward" to "astern". <p>This boat (te puke or folafolau) was built on Taumako and sailed out of Nifiloli; it was used for travel and trading within the Santa Cruz archipelago. Her owner named her "Maunga Nefe“ after a mountain on the island Vanikoro, the home of the dead. Teh boat is the last of its kind. It was brought to Berlin in 1967. </p> The hull is prepared for bluewater travel inteh traditional manner, with clay slip made from ocean-bottom sediments. |
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