Instrument Rating Exam · Mock exam

IREX.5.1.9Topic: DME: use and limitations, slant range effect, off-track errors, DME arrival procedures.(clear)

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Ground and space-based navigation systems and infrastructureDME: use and limitations, slant range effect, off-track errors, DME arrival procedures.· hard

A DME arrival procedure specifies 'D7.0 SY' as the FAF. An aircraft at FL120 on approach to SY VOR/DME receives DME 7.0. Is the aircraft at the FAF?

Right-triangle schematic of DME slant range versus ground range, with altitude as the vertical leg.

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