| 释义 |
decision height
decision heightA height above the highest elevation in the touchdown zone, specified for a glide slope approach, at which a missed-approach procedure must be initiated if the required visual reference has not been established. See also decision altitude.decision height
decision height[di′sizh·ən ‚hīt] (navigation) A height specified in MSL (mean sea level) above the highest runway elevation in the touchdown zone at which a missed approach shall be initiated if the required visual reference has not been established; this term is used only in procedure where an electronic glide slope provides a reference for descent or in ILS (instrument landing systems) or PAR (precision approach radar). Abbreviated d.h. MedicalSeedh'd |