Propulsion system model of a mini UAV system

This paper is about the propulsion system model, which is developed using combination of flight test data and software analysis, for a mini UAV system (MUAS-2) developed jointly by ASELSAN Inc. and the Aerospace Engineering Department of the Middle East Technical University. Simulation is a critical and very important phase while developing the autopilot algorithms and a good system model is very important for testing the algorithm and tuning the gains of the autopilot. Dynamic modeling of the propulsion system which is the combination of the Propeller System and the Electric Motor System is very time consuming, expensive and requires much work load such as wind tunnel tests and experimental setups like test benches. To make everything easier and faster, propulsion system model of the MUAS-2 is developed using the Propeller Model and the Polynomial Based Motor Model as described in this paper. While developing the propulsion system model, neither the wind tunnel tests nor the test benches are used. Everything is investigated using analysis softwares and RC (Remote Controlled) flight test data.