This is an interesting, if not new concept.
In the early ninetees Weymouth Sailing Club hosted a day for Disabled adults and children. One of the craft we used was a cat made from two big Vntna,s with a platform between them. This was attached to mast tracks and footstrap screw holes.
Disabled passenger lay on platfoem and we sailed.
As I remember it was a pig to sail, but the joy on the faces made it such a cool day.
GO165, SP128, Vector106. Redline 8.2 & 7, Sprint 6. NP 5.4 & 4.7