Several structural models that could serve as building blocks for a next-generation FSI-based kite design tool have been developed. The models represent the leading-edge inflatable V3 soft wing membrane kite of Kitepower B.V., by using a wireframe multi-plate representation. Where the shape deformations are calculated using bridle line system models. Both by using a trilateration algorithm and a particle system model were accurate results found. Accurate in comparison to the experimentally obtained data from a photogrammetry analysis. The existence of slack and its non-dependence on empirical relations made the force-based particle system model best.