The three Dutch research institutes NLR, TNO and TU Delft are collaborating to perform a multi-simulator follow-up study aimed at investigating the influence of yaw and translational motion cues in helicopter- and general flight-simulation. In this study, new experimental results will be combined with pilot modeling. Two experiments will be performed; a yaw-control helicopter study and a piloted decrab study. Results will include comparison with previous studies, analysis of a pilot perception model and the generation multi-loop pilot control model from the measured data. This paper describes the background of the study, as well as the preparatory work for the helicopter experiment.