A support sting to be used with the AGARD-B model was defined as well. The initial specification of the model called for a sting having a diameter of 0.5 D and a length of 1.5 D. In the revised specification the length of the sting was changed to 3 D in order to reduce sting interference, but at that moment a number of wind tunnel tests had already been made. Therefore, published test results for the AGARD-B models do not all correspond to theoretical model configuration.