Mirage recently introduced a redesigned rudder to its Great Harbour line. The first boat to get them, Hull 34, is spending its commissioning period at Reynolds Park Yacht Center on the St. Johns River in Florida. Hull 34’s owners and other Great Harbour folks in the vicinity decided to do a comparison test: New versus Old.
The verdict surprised even us. “At lower rpm's the new rudder cut circles right at half the diameter of the old...At full rudder, full rpm the new rudders cut a circle that was about three boat lengths in diameter -- no exaggeration,” one participant said. “Pretty damn impressive. We spent a good part of the afternoon going, ‘gee and wow’.”
Of course, we always thought the boats handled pretty well before. Now that the owners have dubbed them “miracle rudders,” what can we do? Mirage has put out the word that we will build new rudders for any existing customer that wants to retrofit them.
What makes these rudders work so much better? Rather than a flat-plate design, the new ones are shaped like an airfoil or “fishtail,” which is far less susceptible to stall. Read more about this concept from our favorite naval architect Lou Codega.
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