Developed from the Model K series, the Model 50-C, known as the Chief, was powered by a Continental A-50 four-cylinder horizontally-opposed air-cooled engine. It differed from the earlier model in having a wider fuselage, an increase in wing area and all up weight, and other details changes.

The Aeronca K Scout series of light aircraft was a side-by-side two-seat light cabin monoplane introduced to the Aeronca range of aircraft in 1937. Powered by a 30-kw (40-hp) Aeronca E-113-CBD engine, it was subsequently produced in a number of models with a variety of power plants to meet customer

The aircraft was designed to meet Regulation 95-10, being a two-seater in tandem with an open cockpit or enclosed cockpit, as the customer wishes, but with the same responsive controls and handling of the larger aircraft. The cargo area can be used for a jump seat.