Weta Trimaran with the largest fleets in France and the USA. Its sails were manufactured by Dutch windsurfing sail-maker Gaastra. The design evolved over time: In 2014 the new 2015 Weta was announced. Structural and cosmetic improvements include: In September 2014 the first of the new '2015 Weta' build were shipped to customers in the US. In April 2017, Weta announced the availability of a redesigned and bi-radial cut 9.3SqM square top mainsail and a 12 kg lighter foam-core boat. Weta Trimaran The Weta 4.4 Trimaran is a 4.4 metre (14 foot) sailing dinghy conceived and developed in New Zealand from 2001-2006
Pontoon effect a trimaran with narrow-beam floats will simply submerge the lee float, exposing only the weather wing and that with a lesser moment. In practical sea situations the windage effect is greater than the buoyancy effect and so cruising trimarans with highly buoyant floats are more, not less, likely to capsize than those with less buoyant floats. A trimaran is best stabilised not by adding buoyancy on the lee float but adding weight to the weather float. This is the basis of the "cool-tubes" stability system invented by Tristan Jones and L. Surtees. A large-diameter pipe closed at the aft end