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decision height |
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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. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Since the EVS IR vastly improves the pilot's situational awareness at decision height and allows other airplanes in the air and on active taxiways/runways to stand out clearly in the EVS image, it reduces the potential for accidental collisions," notes Merluzeau. Category I vertical decision height minimum is 200 feet; while Category II vertical decision height minimum is 100 feet. |
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