A low-aspect fin (wide but not too deep) is required on this big yacht to minimize draft; otherwise the fin would project beneath the keel. High-aspect fins (narrow and deep) are more efficient, because of their longer leading edge, but not always practical.
Capt. Bill Pike recently returned from an extensive test of the Bertram 35. The first boat built under new ownership, this build has a lot riding on it. Get Bill’s first take here with a teaser of things to come on image 15.
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