Rotation of the demonstrator is started smoothly and acceleration is uniform in a clockwise direction under computer program control, until reaching an angular velocity of 12 rpm. The pilot receives a 2-minute orientation in the demonstrator and then takes the controls. The motion base can provide 360 continuous yaw motion as well as 15 pitch and 30 roll. The rotational environment has thus established the gyroscopic reference from which all subsequent relative movement will be interpreted. The subject pilot directly experiences the reality of this phenomenon, learns to recognize and thus avoid those conditions that promote it, and learns to reject the misleading vestibular effects by relying solely on instrument indications.
Unusual attitudes are both a cause and a consequence of spatial disorientation.