Natasha sails by breath control as she cannot ruse her hands ,so using a small tube the size of a drinking straw fixed in a helmet which helps keep the straw in place . This in turn connects to the ram and the steering system. Using various micro processors and large electronic rewind winches Natasha can also adjust the sails when she changes the mode of the straw by flicking a tounge switch
A sip takes the boat to starboard and a puff to port or sail trim a sip to bring the sails in and a puff takes them out. Very tiny movements and very responsive. The system uses open source software and programmes written by Our Dad.