PT-658

Moored along an industrial stretch of the Willamette River, PT-658 represents a surviving example of the U.S. Navy’s World War II patrol torpedo craft, the small, hard-hitting vessels that formed the “mosquito fleet.” PT boats were built for speed and surprise: lightweight planing hulls, multiple gasoline V-12 engines derived from aircraft powerplants, and a weapons fit that, at their height, combined torpedoes, automatic cannon, and heavy machine guns. Their wooden construction and relatively fragile frames contrasted sharply with the heavy armor of the ships they harassed, and that tension between vulnerability and aggression defined the type. As a preserved PT boat, PT-658 offers an unusually close look at the engineering compromises behind these craft—how naval architects traded endurance for acceleration, protection for shallow-water agility. For enthusiasts interested in small-combatant tactics, the boat embodies the shift from early 20th-century displacement torpedo craft to high-speed planing designs that influenced fast attack craft long after 1945. Set within an urban waterfront environment, PT-658 also illustrates the preservation challenges of maintaining a large wooden warboat in operational condition decades after its intended service life.