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What does it mean if an instrument procedure is depicted with concentric rings?

A) Holding pattern
B) DME arc
C) Radar vectoring
D) Procedure turn

User Jbkkd
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1 Answer

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Final answer:

Concentric rings on an instrument procedure indicate a DME arc, a navigational procedure for maintaining a constant distance from a navigational aid.

Step-by-step explanation:

If an instrument procedure is depicted with concentric rings, it typically indicates the presence of a DME arc. A DME arc is a navigational procedure that pilots use to transition between different segments of an instrument approach or to intercept a final approach course.

It involves flying a constant distance from a navigational aid by tuning into the DME (Distance Measuring Equipment) frequency, which provides the distance information to the airplane. As the aircraft flies this arc, it's maintaining a constant distance, depicted by the rings, from the navigational aid.

User GetName
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