Seafarer 31 Mk I Sailboats for Sale & Market Overview

Drawing Diagram

Builder drawing

Hull type

Monohull · fin

Rig

Masthead Sloop

LOA

31.16' · 9.5 m

Displ.

8,750 lbs · 3,969 kg

First year

1968

The Seafarer 31 Mk I represents a significant milestone in the evolution of American fiberglass boatbuilding, marking the moment Seafarer Yachts transitioned from an importer of Dutchbuilt hulls to a primary domestic manufacturer in 1965. Designed by the legendary William H. Tripp Jr., this 31footer was envisioned as a versatile racercruiser capable of handling offshore conditions while remaining manageable for a coastalcruising family. Its aesthetic is defined by a distinctive clipper bow and a graceful sheer line, features that distinguish it from the more modernlooking, finkeel McCurdy & Rhodes designed Seafarer 31 Mk II that followed in the 1970s. As one of the early "plastic classics," the Mk I helped define the era of the sturdy, heavydisplacement fiberglass cruiser, blending Tripp’s penchant for performance with a robust construction philosophy.