Although there exist a number of accurate unmanned aerial vehicle (UAV) thruster models, these models require the precise measurements of several motor and propeller characteristics. This paper presents a simple motor and propeller model that relies solely upon data provided by manufacturers. The model is validated by comparing theoretical motor and propeller behavior to experimental results obtained from thrust tests in a wind tunnel. The objective is to provide an accurate yet simple model to facilitate the selection of appropriate brushless DC motor and propeller combinations for flight applications.

Examination of emotional intelligence (EI) of autistic individuals has gained popularity. These efforts have included the BarOn Emotional Quotient Inventory, Youth Version (BarOn EQ-i YV); however, this measure was not standardized with this population and so its utility and the accuracy of its factor structure for this population is questionable. This study examined how well the factor structure as represented by a sample of autistic children and youth aligns with that described in the measure’s technical manual to clarify considerations for use. Results indicate poor metrics of model fit. Some factors were significantly correlated, though this was attenuated somewhat upon correction for multiple analyses. Two items from the interpersonal factor were negatively loaded, suggesting they should be subtracted from other items in that factor (in contrast to the standardized model). Implications for EI construct validity, understanding of EI in autism, and use of EI measures for this population are discussed.

This paper describes a parametric study on the design of the structural wing members of a weight-shift aircraft for the conversion from piloted to unmanned cargo delivery operations. Ultralight weight-shift aircraft wings are designed for both pilot control and structural stability. These wings have evolved over decades without much formal engineering, and there is little scientific literature describing their design. Since modifications to the structural members of the wing are required to replace the pilot with an enclosed cargo bay, a parametric study on the wing design was conducted. The loads on each member of the wing were modelled, and nonlinear buckling simulations were performed to determine the minimum structural member tube sizes.

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