Hot Chili Launched!  
by Hugh Miller - Auckland, New Zealand

I started building my hot Chili catamaran design in March 06 and finished it about 9 months later, this involved most weekends and the odd day midweek. I actually liked the look of boat profile and and thought it would be quick and easy to build and a reasonable sailboat. Hot Chili has fulfilled all my expectations. It certainly goes better than any of my previous monohulls of similar size. The boat was built to plan with a few minor changes to suit my needs. Everything on the boat went together easily and I had no real problems with the construction, (having said that I am a 70 year old retired boatbuilder) I think any average person could build one.

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The sides were built from 6mm (1/4 inch) ply instead of 9mm(3/8 inch). I managed to get 4 sheets of marine ply on a special for $NZ2O per sheet - I could not resist it. I had intended to put bunks in the hull and I ran the the centreplate stingers the full length of the sides to stiffen them.

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Any part of the construction that I intended to cove with epoxy I glued with Titebond 3, the plywood was butt joined with plywood butt straps or else fibreglassed both sides. The bridgedeck join doweled and glued then glassed. The whole boat hulls, cabin, cockpit and decks were all fibreglassed.

The windows are all 6mm tinted Lexan set in a butyl rubber compound bolted through or screwed to timber framing.

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The boat is painted with an acrylic enamel (house paint), it it does not last I will simply re-sand and repaint. The bottoms are two layers of 6mm ply coated with copper epoxy (mixture of copper dust or spheres and epoxy resin) A system I have used with success on several occasions.

The boat was built in my carport (which has a flat roof) when it came to turn it over I simply unbolted the carport from the posts on one side and raised the roof on that side with wooden posts clamped to the carport posts, an old wooden mast was then secured down the underside on the bridgedeck, the boat was then lifted high enough with a small electric chain hoist at one end of the secured mast and a wire come-along at the other end when the boat was high enough it was simply spun and lowered. My son and I did this quite easily and was considerably easier than trying to take it out the carport and needing a few bods turn it.

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The cabin sides I raised 150mm (6 inches) as mentioned in the building notes to give me slightly more headroom in the cabin. The bulkheads at the aft end of the cabin I raised 50mm (2inches) at the centreline, this was done as the boat is moored and I wanted some fall rather than a flat cabin top.

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The cabin front was constructed in 3 sections with a wooden framework rebated to take 6mm ply, which I had on hand. The cabin centre section was brought forward about 40mm (1-1/2inches) trying to avoid too flat a front.

The rudder gudgeons were fabricated in fibreglass so the rudders could be moved outboard to line up with the outer sides (also mentioned in the builders notes)

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I originally had a forward beam for the forestay and jib fitting, in stainless steel but it weighed 29 lbs, thinking that was too heavy I made a hollow box section in l2mm(1/2inch) glassed with biaxial fibreglass cloth, when finished it weighed l3lbs and has proved satisfactory.

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I use a 2 HP Honda air cooled outboard as an auxiliary. Rather than lower the bridgedeck height to accommodate it - I constructed and outboard bracket (only a box) that can be raised and lowered, that also worked out well.

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My trampoline is crayfish netting (cost $NZ12) and is laced as per the plans.

I made and fitted a simple furling gear with two pieces of timber with two grooves, one for the forestay and one for the jib luff, it is simply screwed from each side onto the forestay and there is a simple drum fitted on the bottom. The whole thing revolves on the forestay, it rests on a simple wire clamp attached to the forestay under the drum.

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Now having launched and sailed her I am well pleased - as for my modifications - if I was doing it again I would not have bothered changing the cabin front - would have left it straight. I use the bunks for stowage and when I do come to overnight I will probably sleep across the boat in the cabin, the extra cabin height means I can sit comfortably on the bunks, read or have a drink, so it has worked out well.

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This is the first catamaran I have owned and apart from sailing to odd beach cat while on holiday I have no real experience with catamarans. On my first sail the wind was about 10 to 15 knots, flat sea with some gusts around the 20 knots, the boat went well and went where I pointed her, I had trouble coming about and had to wear the boat around a few times. In the gusts we were doing around 8 knots, for me that was excellent. On my second sail I experimented with placing the centrboard in different positions, and had no trouble coming about, although like any catamaran she was slow in stays. She also sailed well under main alone and came about reliably as long as I was careful, she also sailed under jib alone (although slowly). The more I sail her the more I am enjoying it.

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I know there have been criticism about Jeff Gilbert’s plans and when I first saw them I thought they were definitely different - I am used to lines drawings and a table of offsets - but then Hot Chili is also built very differently, and is certainly an easy way to build. All the measurements that are the plans have proved to have been spot on and the construction method is great.

Some people have asked me what it cost. Unfortunately I cannot really help there, she cost me $Nz2537.30 including trailer for for launching but I did not have to buy one piece of timber, only plywood, I had the mast, boom, rigging, sails, fastenings, resin etc and when I started to build I decided I would use whatever I had.

More about Hot Chili

SAILS

EPOXY

GEAR