A boat with three hulls is called a trimaran. Trimaran vessels are known for their stability and speed, as the additional hull provides increased buoyancy and reduced drag compared to traditional monohull boats. They are used for various purposes, including sailing, recreational boating, and even in competitive racing. The design allows for a spacious deck and can be more efficient in certain conditions than monohulls.
It is called a tri-hull and it basically looks like a W when you are looking at the front of the boat.
Tri-hull
A trimaran has 3 hulls, a main hull and two smaller outrigger hulls.
A trimaran is a sailing yacht with three parallel hulls.
Trimaran
A Trimaran is a boat with three hulls.
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.
Trimaran
Two. If it has three, it would be a "tri-maran".
This type of boat is called a Catamaran.
Catamaran.
4