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5th January 2011 | 14:44

#5 (permalink)

aterpster

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Joined: Apr 2009

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From: On the Beach

Tinstaafl:

Quote:

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.

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