What? A windvane? You must have strengthened your transom before leaving? This surely is not the Navik that threatened to tear off Wildflower's back end last time? Remember when you and Wildflower II were berthed in Berkeley Marina during the summer? Over on O Dock? That was the last time I tried strengthening DM's transom for my windvane. What. A. Mess. I made! Gotta try it again soon, though. Please advise.
Hi Jackie,
WILDFLOWER had 3 different windvanes during her 33 year lifespan, but never a Navik. The first was a homemade, vertical axis, and doubled as an emergency rudder. The second and third were Sail-O-Mats, horizontal axis. Yes, in the 1978 SHTP, the newly installed Sail-o-Mat did try to remove itself from the transom on Day 3. I strengthened that while curled up inside the back of the boat, only to have the same Sail-O-Mat windvane paddle break off on Day 4, leaving us with just an old Tillermaster AP for the rest of the '78 Race. Little did I know Norton Smith had lost his electric AP in the same '78 SHTP, and alternated hand-steering with sheet-to-tiller steering for the rest of the race on his SC-27 SOLITAIRE.
Our broken Sail-O-Mat was replaced by the factory with a newer model at cost, and that is what is currently being used in this 2020 SHTP when I refer to "windvane." This windvane has 4 outstanding qualities: 1) it is quiet. 2) it consumes no power 3) it is immensely powerful 4) it can alter course to AWA windshifts with no electronics.
The Sail-O-Mat also has some drawbacks: ) it doesn't work well in AWS < 4 knots. 2) It's oar does have some parasitic drag at lower boat speeds, but can be easily be lifted out of the water when not in use. 3) though all aluminum and aluminum casting, it is relatively heavy, 45 pounds of metal sitting on the stern of the boat. 4) it doesn't like spinnakers. But watching a windvane tirelessly steer when it's in its element, usually the tradewinds, is a joy to behold: "I couldn't be doing that" says the skipper.
Though there are apparently newer models, this is the Sail-O-Mat unit we're using from in this 2020 SHTP:
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