About
The i550 is easy to construct, even for even the amateur builder, with a plywood “stitch-and-glue” method that ensures a light, solid hull, and a quick build. Or, to save drawing and cutting time, you can buy a kit from us, cut from the master templates or full-size paper patterns that are very accurate. Here’s the specs: 18 feet LOA, 8 feet beam, a lifting bulb keel, draft 4 feet 5 inches, and 10 inches of depth for easy trailering. Class weight is 800 lbs. Main and jib: 236 sq. ft., Asym: 350+ sq. ft., SA/D: 42 upwind, downwind 112, (translation: faster than a stepped-on cat).
The i550 is annoyingly fast and has troubled much larger sportboats, like Elliot 7’s and a Melges 24.
The first i550 was launched in Australia a few years ago, home built by Andrew Clauson. It is the fabled Tokyo Trash Baby of YouTube fame. Andrew this year set a new elapsed time record during the Bay to Bay Race, coming in first over-all handicap in a very competitive fleet including sportboats. Chris Beckwith, the i550’s illustrious designer, is building his own i550 in Charleston, SC, dubbed Paninaro, from a precut marine plywood kit by us at Watershed Sailboats.
Congratulations to Ron Bowman, Hull # 108 in International Falls, Minnesota, to be the first i550 in the USA to launch and it’s a BEAUTY! The i550 is a big winner in the bang for the buck department. You’ll not only have the satisfaction of crafting your own sportboat, but think of the $25 or $35 thousand dollars you’ll be saving. Resourceful scavengers can put one together for $6,000 or less (US). Double that and you’ll have a carbon spar, fine sails, nice foils by a skilled maker and new everything. The building time typically spent comes in at about 300 hours for the hull, keel and rudder.
Following the plan set page by page, with the parts diagrams and instructions, the boat will come out right. Chris Beckwith has also written a great construction guide that can be downloaded at i550 (Files Section).
The rig has height and length limits, but the layout of the deck and cockpit are open to interpretation. Construction is simple stitch and glue plywood, epoxy and glass. Two people can have the hull looking like a hull in a weekend.
Put in the transom and bulkheads next while it is right side up. Epoxy coat and glass tape the parts in place and roll it over. Fair the bottom and fiberglass cloth it. There is room down below for simple camping style. Plenty of room on deck gives you room to move around. The lifting bulb keel gives stability and righting moment, but, most importantly, lets the boat launch easily at any boat ramp.
The plan’s pack consists of construction notes, suggested bill of materials, profile, plan and section views, nesting diagram, hull panel diagrams, frame diagrams, interior diagrams, keel and keelbox diagram, rudder diagram, cabin trunk diagram, deck layout and a rigging diagram. The plans pack is in an 8 1/2 x 11 inch sized binder. Plans include both the standard and the extended cockpit version. Some creative builders are even building flush deck versions.
The mast can be obtained through a number of sources (both aluminum and carbon fiber). We will soon be offering keel bulbs and keels, ballast bulb molds and rudders. We also will build the i550 for you to any stage of completion. Clubs are especially encouraged to inquire. Before and after any purchase, Also, we are always here to answer your questions, anytime by email or phone. Four are now sailing in Australia. Many other builders, who have bought kits or full sized paper plans, are making great progress and we expect those i550s to start launching soon. (Go to www.i550.org — a great forum site on everything definitive on the i550, created and managed voluntarily by web wizard Matt Broughton — for build blogs, helpful files and much more to see more boats in progress around the world.) These guys have done an incredible job with their boats!
We are quickly approaching 300 plan sets sold throughout the world (map), including Australia, Slovenia, Italy, Denmark, Germany, Brazil, Greece, Singapore, South Korea, Canada, Thailand, The Netherlands, The Czech Republic, England, Norway, Spain, Shanghai, Poland, Belgium, Argentina, Finland, Chile, The Philippines, Croatia, Sweden, The Ukraine, Turkey, Egypt and many more.
Check with us for more detailed information.
Happy Sailing!
Tim Reiter & Susan James
set@skywerx.com