Definition of buoyancy: the ability or tendency of something to float in water or other fluid. Buoyancy is equal to the weight of the displaced water
My design is build based on buoyancy because everything is hollow, I mad the middle of the boat a big surface so it pushes away a lot of water, which creates buoyancy. But also the middle is hollowed out, so it is light and buoyant. My design also fits stability because I made two pontoons on the side, so the boat won't tip over, and I made two weighty paraboloids on the bottom of the pontoons so it is extra stable. They are both hollowed out though, so the boat won't sink.
Strengths and Weaknesses.