Well gang, this last weekend I took my new design, the A18 canoe/trimaran down to Lake Powell for its first sailing session. The occasion was the Second Annual Lake Powell Messabout and I am overjoyed with the results of the boat's first time on the water.
For one of the first sailing sessions, I took along Chuck Leinweber, owner and publisher of the Duckworks Magazine for Boatbuilders. Chuck
brought his Garmin GPS and we clocked several of the runs we made.
In winds that varied from 13 to 18 mph, the A18 punched in at 13.1 mph while sailing upwind. We didn't get a reaching leg clocked as we were having too much fun to pay any attention after the first set of times were recorded.
The cool part about all this is that the boat is still not setup with its full trampolines from ama tomain hull. This meant that the boat could only be sailed from the main hull. I'm more than certain that when the tramps are installed and I can move out to the amas for counter-balancing, the speeds will easily reach 15+ mph in the same conditions.
The boat is very nicely balanced from the tiller with only the slightest hint of weather helm. She turns smartly through the wind on a tack and gives very good feedback when the leeward ama starts to
press fully under hard sailing loads.
The demountable feature of the aka beams allows the boat to be take apart on the beach and reconfigured for a 6' beam trailering mode.
Standard sailing beam is 15'.
The boat weighs somewhere in the 350-375 lb. range I can't give an exact number yet as I haven't had it to the scales and gone through the weigh/unload/weigh-again procedure. Very specific numbers as soon as I get off my butt and do that.
There are two very informative articles at both Duckworks an Watertribe that deal with all the specific info on the boat along with a nice collection of photos showing the boat under construction.
The hulls are built in a multichine design from 6mm Okuome in the vaka hull and 3mm Okuome in the amas. All the decks are stripped with 1/4" x 3/4" red cedar. The boat is glassed inside and out in 6 oz. set in PTM&W epoxy. I fabricated all the metal fittings in 316 stainless steel. The rig is right off a Hobie 16 cat as are all the sheet trimmers and hardware for sail control.
The overall beam is demountable to a trailer width of 6 feet. Setup for the entire boat is right around 40 minutes without rushing.
You can view a small collection of images from the session at: http://www.dmelt.com/lunadadesign/A18/
lunada9 at yahoo dot com
[ 09-30-2005, 08:52 AM: Message edited by: Chris Ostlind ]