Long before a full size car is built and put in a wind tunnel, a scale model of it has to be built. This model is then put into the wind tunnel to assess the design’s potential. Different noses, wings, underbodies, and other aerodynamic details are also built in model form first. The models can be anything from 20–60 per cent scale, and they must be stiff enough for the aerodynamic load not to deform the body and thereby skew the data. These models are built by highly skilled model makers.
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