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Thread: ADF required for IR(R) and IFR?
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Old 2nd Jan 2017, 21:44
  #17 (permalink)  
reynoldsno1
 
Join Date: Jan 2000
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In the world of FMSs, the NDB is obsolete - not so the DME. DME/DME updating is very accurate, particularly if 3 stations are in good geometry. I would opine, it is still a valuable back-up to GNSS.
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