 The two hulls are joined above the waterline by a ledge which also acts as a spray ledge.The resulting shape is easily driven because of the long, thin underwater shape but enjoys the accommodation space (above the waterline) of a beamy hull.In the 1990s Collins turned to fiction, publishing three sailing novels and then a series of more wide-ranging novels, including two ("The Rationalist" and "The Marriage of Souls") which are set in 18th century Lymington.