PPRuNe Forums - View Single Post - Sari Ils Dme Rw31
View Single Post
Old 5th Jan 2011, 14:44
  #5 (permalink)  
aterpster
Guest
 
Join Date: Apr 2009
Location: On the Beach
Posts: 3,336
Likes: 0
Received 0 Likes on 0 Posts
Tinstaafl:

DME is a slant range, not an along track distance. The geometry changes as you get closer so that can also affect DME readings vs actual distance.
Slant range is so slight at IAP altitudes that it is ignored in procedure construction.
aterpster is offline