Abstract
Aerodynamic characteristics of an airship with circular and elliptic hull sections in cross flow were examined experimentally. Size of the airship model with circular section was 1/300 of the Hindenburg and its overall length and the maximum diameters of hull are 0.8m and 0.14m respectively. Length of the elliptical model is same as the circular one and aspect ratio of minor and major axes is 1:1.5. The experiment was carried out changing yaw angle from 0° to 180° and Reynolds numbers. Effects of Reynolds number and the yaw angle on drag, side force and yaw moment for both the models with circular and elliptic sections were made clear.
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