Analyses of aviation accidents ascribe about 75% of all incidents to human (pilot) behavior. A strong effort is being made to improve ergonomic cockpit layout, because of dramatic changes in the airspace structure, the increase in air traffic, and larger aircraft. One part of an interdisciplinary research project investigates the potential of stereoscopic flight-guidance displays in order to improve pilots' situation awareness. This experimental approach, which aims to research and apply ergonomic design recommendations for stereoscopic flight displays, is based upon a new type of perspective flight-guidance display. The examination of existing research regarding stereoscopic flight displays reveals a lack of basic knowledge, as well as a need for further systematic research into cockpit application. Thus the project contains experiments on different levels of abstraction, ranging from classic parameter experiments to flight simulator tests. Both current knowledge and recent discoveries are applied to superimposed 2-D flight parameters and to real and synthetic 3-D elements, such as a perspective landscape, other airplanes or flight prediction. The stereoscopic layout takes into consideration specific informational needs within different flight phases and is evaluated by means of pilot performance and pilot strain. Selected symbols of the flight guidance display and actual results are presented as examples of the research approach.