Design of Ducted Fans of Small Height for Hexacopter with Long Hover Ability

Investigated is the ability of the usage of small height ducted fans in multicopters for increase in the hover time and protecting the propellers and surrounding. A set of numerical and experimental investigations concerning duct aerodynamics and efficiency of electrical part (drive, speed controller, accumulator) was conducted. The effects of...

One useful propeller mathematical model for MAV

A model for Micro Air Vehicles (MAV) propeller performance evaluation is proposed and investigated. This model is derived on the basis of simple analytical relationships and is examined on a set of experimental data. It allows to predict the main propeller characteristics (for example, thrust coefficient, power coefficient, efficiency as...