Propulsion System Selection and Modeling for a Quadrotor with Search and Rescue Mission

This study presents the development activities of a Quadrotor for search and rescue operations. There are four main specifications: The total weight of the vehicle is should be less than 4 kg, the endurance of the quadrotor should be at least 45 minutes in hovering flight, the vehicle shall carry a high resolution video camera to be transmitted live to the ground station, commertial of the shelf parts shall be used as much as possible. The initial design required the selection of the propulsion system. Five different propeller are tested with seven different brushless direct current motors. The test results indicate that the goals are achievable. Wind tunnel test results for selected propellers are also presented.