Then I re-mounted the anemometer on top by tapping threads into the extension. I attached the extension using 4 5/16″ bolts–the 2 outer ones were thru-bolted and the 2 inner ones required tapping. The halyard goes inside the mast, exiting a few feet from the masthead, goes through a block that’s mounted on the port-side stainless steel tang (used for spinnakers), then up through the flip flop block. A flip-flop block is mounted on the bottom. They painted it white to blend in with the masthead. I took measurements and made a drawing of the masthead, and a machine shop fabricated the 1/2″ thick aluminum extension with stiffeners. The masthead needed a bolt-on extension added to position the top furling gear away from the jib furling gear. Since a Code Zero is flown out in front of the headstay, I had to add some hardware at the masthead and bowsprit. My boat size was right near the cutoff for furler size, so we went with the bigger one (good for larger boats). Bamar is a German company that casts their furler in bronze. It’s tri-radial cut with 30 panels and dacron along the foot and leach to protect the nylon sail when it’s furled. ![]() The dimensions are Luff 49.67′, Foot 34.25′, Leech 46′ for a total area of 871 square feet (for comparison, my Genoa is 560 square feet). For the Code Zero, I sent Travis 6 measurements and chose the color pattern. I was very please with co-owner Travis and his customer service, quality workmanship, and delivery time when I had them make my Stack Packs. I decided to use Mack Sails for the complete Code Zero system–sail, furling hardware, and boat modifications. When done sailing, or when the wind picks up and you want to switch to the Genoa, just furl it up and leave it in place since the sail has a UV protection strip. When tacking or gybing, just furl it in using the continuous line furler, change direction, then unfurl. You just have to hoist the stay with the sail furled around it by using its halyard and then unfurl the sail from the cockpit. A Code Zero is flown out in front of the jib stay and is set up for roller furling, which is important for cruising boats and short handed crew. It’s intended for lower wind speeds (typically below 20 knots) and does best at wind angles between 75 and 125 deg. Think of a 180% genoa and you start to get the picture. Eventually, furling Code Zeros were adopted by cruising boats, and are now becoming quite popular.Ī cruising Code Zero looks like a genoa on steroids. I began reading about Code Zero sails and learned that they originated from the racing scene to get around rules governing spinnakers. ![]() ![]() ![]() I also wanted something more modern that had a better sail shape. And because it needs to be taken down after each sail, stuffed into a bag and stowed below decks, I was looking for something that was easier and didn’t have to be taken down after each sail or when switching to the Genoa if the wind suddenly picked up. With increased wind, it takes a lot of effort to dowse. It tacks easily if there’s some wind, otherwise it needs some help getting around the stays’l stay. I just recently started using it more and am able to get it out while sailing single handed. It’s a simple panel-cut sail that’s flown aft of the headstay and is pulled up in a sock. A drifter sail made from lightweight nylon came with Apropos.
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