23′ Fantail Launch by Philip C. Bolger
Bolger comments on the launch’s performance: “A hull this size and shape will have a maximum possible speed of about 6-1/4 knots and will be happiest at about 5 knots. Probably 5 hp would be enough to produce these speeds in a dead calm and smooth sea, but she should have two or three times that power to make sure she can buck a breeze of wind and choppy water. A much larger engine will do her no harm; she might make 6 1/2 or even 6 3/4 knots, but at those speeds her forefoot will be high in the air and her stern wave will spill onto the deck. More to the point, she would become a more powerful tug.
”The prototype carries sight-seers and picnickers on the Annisquam River. For that service, her designer claims she has one distinct advantage compared to con-temporary powerboats—”She looks very elegant at speeds at which they look most inelegant.”Plans consist of five sheets and include lines, offsets, profile and arrangement, large-scale sections, and construction details for carvel planking and cold molding.