This paper aims to preliminary size an agricultural aircraft that meets the agricultural requirements in Sudan and could be manufactured locally and be equipped with an engine that works with cheaper type of fuel (Jet-A1). The specifications have been obtained from existing similar aircraft designs working in Sudan then the standard design procedure has been reproduced. The aerodynamic parameters have been obtained using FLUENT. The primary results were found qualitatively acceptable but need extensive verification. Finally a UAV down-scaled model has been constructed and a flight test has
been carried out and the aircraft taxed, took off and landed safely. That indicated a good aircraft configuration.