One of the few completely new UK-built products at this year’s London Boat Show is the Flying Mantis, a 4.2m trimaran built in lightweight carbonfibre that can be used either as a conventional trimaran or for more performance, fitted with foils.

According to Simon Crispin, developer of the boat, the Flying Mantis is a world-class trimaran for the solo sailor offering high performance with the ability to change from dagger board sailing into a foiling trimaran. Weighing just 85kg with a sail area of 11.1 sq m, it has a high power-to-weight ratio and should be capable of speeds of 12-15kt and over 25kt when using foils.

“The concept was to design a boat that was fast and comfortable that owners could learn to sail on and, once competent, move on to foiling,” says Crispin. “We think that the boat is positioned for two markets – firstly, the enthusiast and secondly, high net worth individuals who want a unique boat. After I made a visit to the Monaco Yacht Show last September, I feel that superyacht owners who want to add to their fleet of on-board watersports craft will be a target market.

“The boat was designed from scratch to be high performance yet stable and hence our choice of the trimaran hull form and for more advanced sailors the option of foils which are easy to fit using the dagger board slot and rudder fittings,” designer Jamie Stewart adds. “The boat has a full carbonfibre, foam sandwich and epoxy construction hand laid with vacuum bagging in order to produce the lightest weight possible.  We have designed the boat so that the outriggers are easily removable with a two part carbon mast and the whole boat packs down with a small footprint.”

Flying Mantis is built in the UK by Solent Boat Works and production has already started.