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Old 14th November 2009 | 19:30
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rudderrudderrat
 
Joined: Oct 2009
Posts: 1,270
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From: UK
Hi DFC, We had notes in our Landing Performance manuals to disregard the PAPI below 200 ft AGL at certain airports because of the minimum wheel height crossing the threshold. We aimed at the ideal touch down point and disregarded the high indication on the PAPI.

From CAP 637:
8.5 The Minimum Eye Height over Threshold (MEHT), which is notified in AIP, is a reference value, calculated with respect to the promulgated approach angle for each PAPI. It is the lowest eye height over the runway threshold at which an on-slope indication will be seen. From examination of published MEHT, it may at first sight appear that for some runways, adequate wheel clearance at the threshold is not assured for all types of aircraft likely to use those runways. However, a typical eye height achieved in practice when crossing the threshold following well established 'on slope' approach would in fact be well above the published MEHT value.

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