If the closing bottom ply is totally flat and the sides are of 6mm or more it can be possible to exactly pre-profile the edge of the closing bottom skin and then pull the sides to line up with that bottom panel.
Trimaran ama design. Joining the ranks of popular catam. His amas were designedprimarily just to aid static stability but as you can see in the picture could help a bit at other times. The Europa is a boat for very fast day sailing with a very light hull and a very big rig.
This design uses my ABC System and general details are given here. The Farrier-Corsair boats Dragonflys and now the Telstars are the three major current production folding trimaran designs. This is the zone where a powered up catamaran has the potential to lift the windward hull and make minced meat of a tri that is struggling to get air between the main hull and the water.
One day I found myself gliding along much faster than usual. Watching the lee-ama cutting effortlessly through the water is pure joy. Amas are the outer hulls of a trimaran sometimes referred to as outriggers or the smaller hull of a proa.
The amas dismissing the crab pot traps and the swimming pool noodles appear to be anything from one quarter the length of the boat to the full boat length. They have different hulls shapes and both feel and react somewhat differently when sailed. The last boat I designed was the Europa 20 which is a trimaran meant for vertical strip foam construction with sandwich style infused epoxyglass laminates inside and out.
It took four years to get the Test Model done and it was successfully tested in July 2014. So its worth trying them before making any. Catamaran and Trimaran Boat Plans make it a reality to build your own catamaran or trimaran.
Tacking is easy due to the self-tacking jib and the design of the banana-style ama. The keel is not balasted as in a monohull and may be fixed or retractable either vertically daggerboard or by pivoting centerboard. Multi-hulled sailing vessels are a special class of boat.