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The purpose of this paper is to develop the transfer function for the ride and handling performance for military tracked vehicle. This transfer function will be used in placed of the expensive physical hardware or simulation model for further study for robust design and optimization studies. Response Surface Methodology (RSM) approximation technique was used to develop the transfer functions. The RSM comprises of a group of statistical techniques for empirical model building and exploitation. RSM uses Design of Experiment (DOE) and multiple linear regression techniques for fitting of a response surface model that relates the output response to the design variables. The general form of the transfer function is a second order polynomial with unknown parameters to be identified. These unknown parameter were determined using the Central Composite Design (CCD) design of experiments.