ON THE FORCES AND HINGE MOMENT OP A STRUT-WING-POD HYDROFOIL ASSEMBLY UNDERGOING RETRACTION IN A BEAM SEA

摘要

It is the purpose of this treatise to provide a simplified approach toward estimating the forces and hinge moment on a single (port or starboard) strut-foil-pod configuration undergoing retraction while the hull-borne boat is rolling in a seaway. Using available free-oscillation model test data for the extreme "foils up" and "foils down" conditions of a representative hydrofoil craft, an engineering "upper bound" estimate is demonstrated.