The Martian atmosphere is characterized by a low density and low speed of sound. which result in the low Reynolds number compressible flows. In this regime. conventional airfoils perform poorly due to the boundary layer separation and the formation of shack wave. https://www.roneverhart.com/HGST-Ultrastar-7K6000-HUS726040ALS214-4TB-7-2K-RPM-SAS-12Gb-s-512n-128MB-3-5-SE-Hard-Drive/