Design

24 foot trailerable trimaran

Design Challenge III

Submissions closed, judging is underway.   A Fast Expedition Sailboat Inspired in part by the worldwide popularity of raid-type events—multi-day racing and cruising expeditions sailed in small boats—we challenge you… Read more »

MultiMarine01

Predicting Bad Behavior

Consider the following cases: A 28′ (8.5m) lobsterboat, repowered for a race, turned turtle at high speed. A 23′ (7m) tournament-style bassboat would chine-walk violently at high speed. A 30′… Read more »

Dagger01

Daggerboard Debate

In March Professional BoatBuilder editor-at-large Dan Spurr visited with Pete Melvin, of Morrelli & Melvin Design & Engineering, in Huntington Beach, California. Melvin is an aerospace engineer by training and… Read more »