Visual Awareness and Instrument Design

Abstract

FORUMVOL. XI around airports between aircraft nominally separated by given amounts, laterally, vertically and longitudinally? If this were done, nominal separation standards could be specified for each area to give a specified safety standard; they might well be found to be quite different from those currently used. Such calculations might show whether the collision risk is less on airways or off airways. Publication of traffic density maps might help pilots avoid volumes of highest traffic density.The magnitude of altitude error makes desirable height control for all automatic pilots, the standardization of altimeters and the investigation whether some other variable than pressure might more accurately be used to provide vertical separation, particularly at great heights.