Designed to be a replacement for De Havilland DH-4 in mail and cargo duties, but test flights were disappointing, and nagging stability problems brought an end to the project. Fuel tanks on upper wing moved to fuselage. Designed to replace the aging 75 s of Aeromarine Airways. Aeromarine Metal Commercial. Scheduled, but not built.
Some sources claim one built, but unregistered .
1924 - Army observer. Details on this one are quite fuzzy. Wherever the path of EO went, it eventually led to its demise in a crash at Cape May NJ on Dec 15, 1931. Pivoting wingtips for ailerons, later replaced by conventional ailerons. Hans Klemm , from his German powered glider design, L.25.