Development of the Ar.64 and powered by a 372kW BMW VI inline engine, the first prototype flew in 1931. Delivery of production Ar.65E single-seat fighters began in 1933 and the first Staffel became operational in April 1934.
The Ar.65E was superceeded in production by the slightly heavier Ar.65F, but both versions were transferred to training units from 1935 with the arrival of better aircraft.
All Aero 