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Old 17th May 2013, 19:32
  #82 (permalink)  
FlightPathOBN
 
Join Date: Mar 2011
Location: engineer at large
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Well, not Jack, but....

anything to get the nightmares to stop!

trust me, every 56 days, when you get the navdatabase files prior to publish to validate...you would be very, very surprised just how many waypoints and runway ends dont concur between design, AIP, and even the different navdatabase providers.....before it is sent to the airline, you have to tell them which one to use. (sometimes the navdata providers will fix the database, sometimes not)

The FAA standard for survey really kills me, as the lat/long for the runway end is measured at the edge of pavement, not the threshold, so the TCH is a real problem. Try looking up a few runway endpoint locations in the FAA database, and plotting them on Google Earth...
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