Boat of the future?

James Boyd Photography /
At Weymouth Speed Week Thomas Jundt showed us his latest Mirabaud LX three man foiler while test pilot Adam May took it for a spin
Solid wingsail catamarans? Very 1990s. All the way from Switzerland, the boat of the future was taking part in Weymouth Speed Week last week. See the video here Thomas Jundt’s Mirabaud LX three man foiler is no newcomer to thedailysail and we continue to wonder if this represents the type of vessel we’ll be sailing in decades to come; if one day we will be seeing 60 or 100ft long airborne monohulls or if the lack of lateral stability inherent in such boats is an issue just too impossible to overcome. Mirabaud LX is now into its fourth iteration. The boat started life as a 18ft skiff to which foils from Prowler creator John Ilett were added. Since then the sizeable 18ft skiff hull has been replaced by a much skinny version from an M2 catamaran mould and over the last two seasons has twice grown in volume, heading back in the direction of the boat’s 18ft skiff origins. Fitted this year, the latest version fitted is a 8.5m long surfboard that resides below the Mirabaud LX’s unique carbon fibre scaffolding structure and is 1.2m wide at the transom, just 15cm deep and ultra-flat bottomed. Jundt built the new hull simply from a block of Styrofoam with Airex and a layer of carbon fibre laminated over it. The all-up weight of the boat has increased marginally from 160-170kg all-up, but this is a substantial improvement over the 220kg it weighed in its original foiling 18ft skiff form. The aim of the Mirabaud LX is to race successfully in the wide range of conditions that can experienced on Lake Geneva, but according to Jundt the previous hulls since the 18 have been too unstable in light winds and also used to sink at the stern during manoeuvres. “It was just a torture to sail.