Voyaging canoes were the vehicles of ancient Pacific exploration, settlement and interactions. However, we know little about the ocean-going performance of those vessels. This account of Taumako (Duff Islands) voyaging technology draws on 20 years of collaborative research initiated by Koloso Kaveia, the late paramount chief of Taumako, during which a new generation learned to build and sail voyaging canoes using only ancient materials, methods, designs and tool types. Recent researchers have tested models of bifurcate tipped sail shapes in wind tunnels. The shapes they used, which appear similar to what Taumakoans call Te Laa o Lata, demonstrated outstanding efficiency compared to others. But one researcher noticed that a more flexibly tipped model performed better than a rigid model. Historical, cultural, technical and operational information about the proportions and the built-in flexibility and plasticity of the design, materials and rig of real Te Laa o Lata suggest that there is much more to learn about their performance. If a model of Te Laa o Lata is to be tested in a wind tunnel it must be shape-shifting and proportionally correct. It also should be rigged to allow it to align and adjust itself in the ways that it actually does at sea. Furthermore, the role of the mostly submarine hull and buoyant outrigger on sail and vessel performance should be measured in a tow tank. But since Taumakoans are still building and sailing Vaka o Lata (ancient Polynesian voyaging vessels) using centuries-old designs, materials and methods, it is still possible to measure the aerodynamic performance of Te Laa o Lata and the hydrodynamic performance of the overall vessel at sea, as well as to more fully understand how the vessel works and how it is sailed under various conditions and for various purposes.

中文翻译：

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Taumako的Te Laa o Lata：衡量古代波利尼西亚风帆的表现

航行独木舟是古代太平洋探险，定居和互动的工具。但是，我们对这些船只的远洋性能了解甚少。Taumako（达夫群岛）航行技术的叙述借鉴了Taumako的已故最高负责人Koloso Kaveia发起的20年合作研究，在此期间，新一代人学会了仅使用古老的材料，方法，设计和方法来建造和航行航行独木舟。工具类型。最近的研究人员已经测试了风洞中分叉的帆形模型。他们使用的形状看起来像Taumakoans称为Te Laa o Lata的形状，与其他形状相比，具有出色的效率。但是，一位研究人员注意到，倾斜程度更高的模型的性能优于刚性模型。历史，文化，有关真实Te Laa o Lata的设计，材料和钻机的比例以及内在的灵活性和可塑性的技术和操作信息表明，要了解有关其性能的更多信息。如果要在风洞中测试Te Laa o Lata模型，则它必须是变形的并且按比例正确。还应操纵它，使其以实际在海上的方式进行对准和调整。此外，应在拖曳舱中测量大部分潜艇船体和浮力支腿在帆和船只性能中的作用。但是，由于Taumakoans仍在使用百年历史的设计，材料和方法来建造和航行Vaka o Lata（古代波利尼西亚航行船），