Industrie Meccaniche e Aeronautiche Meridionali (IMAM) was formed 1936 by renaming SA Industrie Aeronautiche Romeo upon becoming part of Società Italiana Ernesto Breda. Continued Ro 37 recon biplane, Ro 41 fighter biplane, Ro 51 fighter monoplane (land/seaplane versions) and developed Ro 43/44 seaplanes, Ro 57/58 twin-engined fighters and STOL Ro 63.