Stochastic thrust model for small UAVs

Chandra Tjhai, Demoz Gebre-Egziabher

Research output: Chapter in Book/Report/Conference proceedingConference contribution


This paper presents a stochastic thrust model for small propeller driven UAVs whose power plant is a small electric motor. Such a stochastic model is indispensable in the design of state estimation and control systems for UAVs where the performance requirements of the systems are specified in stochastic terms. A model which relates thrust generated by a small propeller driven electric motor as a function of throttle setting and commanded engine RPM is developed. A Monte Carlo simulation and a perturbation analysis are used to characterize the uncertainty in throttle setting; RPM commanded; and propeller geometry and aerodynamic characterization to the error in the predicted thrust. Validation results from a series of wind tunnel tests are presented.

Original languageEnglish (US)
Title of host publicationAIAA Guidance, Navigation, and Control (GNC) Conference
StatePublished - 2013
EventAIAA Guidance, Navigation, and Control (GNC) Conference - Boston, MA, United States
Duration: Aug 19 2013Aug 22 2013

Publication series

NameAIAA Guidance, Navigation, and Control (GNC) Conference


OtherAIAA Guidance, Navigation, and Control (GNC) Conference
Country/TerritoryUnited States
CityBoston, MA


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