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Old 21st Feb 2008, 15:44
  #90 (permalink)  
PAPI-74
 
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...yes but the amount in question is still within limits (1 dot) and at 50' you are nowhere near the road, which is at least 200m away on either runway. There is also a displaced TH. which the ILS and PAPI are leading you past. What bus are you on about at 50'...the one on Flight Sim?
You do it your way and I will stick to mine!

Quote from a FAB doc.

The Precision Approach Path Indicator (PAPI) is a simple visual aid that has been developed to assist pilots during their approach to landing. The development of the system by the RAE was reported in Ref 1 and the operational trials and technical evaluation by ICAO were reported in Ref 2. The PAPI system uses a set of four two-colour high intensity light projectors. Each beam consists of a white upper half and red lower half. The transition from one colour to the other occurs over a very small angle. This sharp transition is an essential feature of the PAPI system and it is therefore important that all units should exhibit this characteristic As the pilot’s vertical position changes, the color of the light as seen by the pilot changes instantaneously.

Well we all know that the transition is there and does appear as a soft Red or Pink. If it is such a small degree, how can one hit a bus for Christ sake, that is 200m away!
And how is the obstacle clearance reduced if the approach is within limits?
Unstabilised...how? By Tucking in at 50' by lowering the nose by LESS than 1/2deg...yer right.
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