Most freighters typically have a single-hull design, which features a continuous shell that provides buoyancy and structural integrity. Some modern freighters, particularly oil tankers, may use a double-hull design for added safety and environmental protection, reducing the risk of spills in case of a breach. The choice of hull design depends on the type of cargo, operational requirements, and safety regulations.
Mono-hulls are the most popular.
Displacement hull.
ACE Freighters ended in 1966.
ACE Freighters was created in 1964.
Most modern sailboat hulls are made from fiberglass or a fiberglass type, it's strong and light, relatively cheap (or one of the cheaper options for hull materials) and can be commonly found wherever you cruise around the world.
The Edmud Fitzgerald
Silverback Cargo Freighters was created in 2002.
The majority of sailboats have monohulls, but world circumnavigators seem to prefer trimaran hulls for their innate stability.
Boat hulls are currently usually made of fiber glass. Fiber glass is the cheapest, most effective material. Boat hulls can also be made of wood, carbon fiber, and steel.
Some freighters do allow for passenger travel. There are specialty travel agencies that accommodate this type of travel.
Two hulls - catamaran Three hulls - trimaran
A trimaran has 3 hulls, a main hull and two smaller outrigger hulls.