The acoustical performance of a submerged linear array of spherical shells in shallow water is examined by combining theT‐matrix method of solving for multiple acoustic interactions among separate bodies with a model for the ocean as a fluid layer over a half‐space of a distinct fluid. The system of source and reflected waves is analyzed by standard approximate contour integration techniques, valid for the far field of the array. Calculations using the results show the effects of shallow water on array performance.