The following information was provided by David Laing of Punta Gorda, Fl. He currently owns Roundelay, a 1976 Seafarer 38 Ketch.

Some number crunching yields the following stats on the boat:

Displ/LWL: 407 (heavy cruiser)
Hull speed: 6.87
SA/displ: 13.6 (sluggish)
LWL/beam: 2.5 (medium)
Motion comfort: 37.17 (seakindly)
Capsize ratio: 1.65 (blue water vessel)