Ribandstringer

Ribandstringer is a term used in boatbuilding, particularly for wooden boats, to describe a longitudinal structural member that runs along the hull's interior. Its primary function is to provide longitudinal strength and rigidity to the hull, connecting various frames or bulkheads. The ribandstringer is typically made of wood, similar to the planks of the hull and the ribs themselves. Its placement and dimensions vary depending on the size and design of the boat. In some designs, multiple stringers may be present at different heights, each serving a specific structural purpose. They contribute to distributing stresses along the length of the boat, preventing the hull from hogging or sagging. The ribandstringer acts as a continuous beam, reinforcing the hull against the forces it encounters during construction, launching, and operation. It is often fastened to the ribs and sometimes to the planking, creating a strong and integrated structure. The term is less common in modern composite or metal boat construction, where different structural elements are employed.