EDO Aircraft Corp
Incorporated 1925. Carried out three years of research and development in connection with seaplanes and flying-boats. From 1928 was famous for standardized float installations, and by 1947 over 300 types of aircraft had been equipped with Edo floats. During Second World War made subassemblies for Grumman Hellcat. First Edo-designed aircraft was the unsuccessful XSOE-1 single-seat observation floatplane. Company name changed in November 1947 to Edo Corporation. In 1962 fitted a Grumman amphibian flying-boat with experimental Gruenberg hydrofoils.